#include <linux/sunrpc/svc.h>
#include <linux/lockd/lockd.h>
#include <linux/smp_lock.h>
+#include <linux/kthread.h>
#define NLMDBG_FACILITY NLMDBG_CLIENT
host = nlmclnt_lookup_host(nlm_init->address, nlm_init->addrlen,
nlm_init->protocol, nlm_version,
- nlm_init->hostname);
+ nlm_init->hostname, nlm_init->noresvport);
if (host == NULL) {
lockd_down();
return ERR_PTR(-ENOLCK);
void
nlmclnt_recovery(struct nlm_host *host)
{
+ struct task_struct *task;
+
if (!host->h_reclaiming++) {
nlm_get_host(host);
- __module_get(THIS_MODULE);
- if (kernel_thread(reclaimer, host, CLONE_FS | CLONE_FILES) < 0)
- module_put(THIS_MODULE);
+ task = kthread_run(reclaimer, host, "%s-reclaim", host->h_name);
+ if (IS_ERR(task))
+ printk(KERN_ERR "lockd: unable to spawn reclaimer "
+ "thread. Locks for %s won't be reclaimed! "
+ "(%ld)\n", host->h_name, PTR_ERR(task));
}
}
struct file_lock *fl, *next;
u32 nsmstate;
- daemonize("%s-reclaim", host->h_name);
allow_signal(SIGKILL);
down_write(&host->h_rwsem);
list_for_each_entry_safe(fl, next, &host->h_reclaim, fl_u.nfs_fl.list) {
list_del_init(&fl->fl_u.nfs_fl.list);
- /* Why are we leaking memory here? --okir */
+ /*
+ * sending this thread a SIGKILL will result in any unreclaimed
+ * locks being removed from the h_granted list. This means that
+ * the kernel will not attempt to reclaim them again if a new
+ * reclaimer thread is spawned for this host.
+ */
if (signalled())
continue;
if (nlmclnt_reclaim(host, fl) != 0)
nlm_release_host(host);
lockd_down();
unlock_kernel();
- module_put_and_exit(0);
+ return 0;
}
const size_t hostname_len; /* it's length */
const struct sockaddr *src_sap; /* our address (optional) */
const size_t src_len; /* it's length */
+ const int noresvport; /* use non-priv port */
};
/*
host->h_nsmstate = 0; /* real NSM state */
host->h_nsmhandle = nsm;
host->h_server = ni->server;
+ host->h_noresvport = ni->noresvport;
hlist_add_head(&host->h_hash, chain);
INIT_LIST_HEAD(&host->h_lockowners);
spin_lock_init(&host->h_lock);
* @protocol: transport protocol to use
* @version: NLM protocol version
* @hostname: '\0'-terminated hostname of server
+ * @noresvport: 1 if non-privileged port should be used
*
* Returns an nlm_host structure that matches the passed-in
* [server address, transport protocol, NLM version, server hostname].
struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
const size_t salen,
const unsigned short protocol,
- const u32 version, const char *hostname)
+ const u32 version,
+ const char *hostname,
+ int noresvport)
{
const struct sockaddr source = {
.sa_family = AF_UNSPEC,
.hostname_len = strlen(hostname),
.src_sap = &source,
.src_len = sizeof(source),
+ .noresvport = noresvport,
};
dprintk("lockd: %s(host='%s', vers=%u, proto=%s)\n", __func__,
*/
if (!host->h_server)
args.flags |= RPC_CLNT_CREATE_HARDRTRY;
+ if (host->h_noresvport)
+ args.flags |= RPC_CLNT_CREATE_NONPRIVPORT;
clnt = rpc_create(&args);
if (!IS_ERR(clnt))
static struct svc_program nlmsvc_program;
struct nlmsvc_binding * nlmsvc_ops;
-EXPORT_SYMBOL(nlmsvc_ops);
+EXPORT_SYMBOL_GPL(nlmsvc_ops);
static DEFINE_MUTEX(nlmsvc_mutex);
static unsigned int nlmsvc_users;
mutex_unlock(&nlmsvc_mutex);
return error;
}
-EXPORT_SYMBOL(lockd_up);
+EXPORT_SYMBOL_GPL(lockd_up);
/*
* Decrement the user count and bring down lockd if we're the last.
out:
mutex_unlock(&nlmsvc_mutex);
}
-EXPORT_SYMBOL(lockd_down);
+EXPORT_SYMBOL_GPL(lockd_down);
#ifdef CONFIG_SYSCTL
#include <linux/mutex.h>
#include <linux/freezer.h>
#include <linux/kthread.h>
+#include <linux/sunrpc/svcauth_gss.h>
#include <net/inet_sock.h>
mutex_unlock(&nfs_callback_mutex);
}
+static int check_gss_callback_principal(struct nfs_client *clp,
+ struct svc_rqst *rqstp)
+{
+ struct rpc_clnt *r = clp->cl_rpcclient;
+ char *p = svc_gss_principal(rqstp);
+
+ /*
+ * It might just be a normal user principal, in which case
+ * userspace won't bother to tell us the name at all.
+ */
+ if (p == NULL)
+ return SVC_DENIED;
+
+ /* Expect a GSS_C_NT_HOSTBASED_NAME like "nfs@serverhostname" */
+
+ if (memcmp(p, "nfs@", 4) != 0)
+ return SVC_DENIED;
+ p += 4;
+ if (strcmp(p, r->cl_server) != 0)
+ return SVC_DENIED;
+ return SVC_OK;
+}
+
static int nfs_callback_authenticate(struct svc_rqst *rqstp)
{
struct nfs_client *clp;
RPC_IFDEBUG(char buf[RPC_MAX_ADDRBUFLEN]);
+ int ret = SVC_OK;
/* Don't talk to strangers */
clp = nfs_find_client(svc_addr(rqstp), 4);
dprintk("%s: %s NFSv4 callback!\n", __func__,
svc_print_addr(rqstp, buf, sizeof(buf)));
- nfs_put_client(clp);
switch (rqstp->rq_authop->flavour) {
case RPC_AUTH_NULL:
if (rqstp->rq_proc != CB_NULL)
- return SVC_DENIED;
+ ret = SVC_DENIED;
break;
case RPC_AUTH_UNIX:
break;
case RPC_AUTH_GSS:
- /* FIXME: RPCSEC_GSS handling? */
+ ret = check_gss_callback_principal(clp, rqstp);
+ break;
default:
- return SVC_DENIED;
+ ret = SVC_DENIED;
}
- return SVC_OK;
+ nfs_put_client(clp);
+ return ret;
}
/*
clp->cl_proto = cl_init->proto;
#ifdef CONFIG_NFS_V4
- init_rwsem(&clp->cl_sem);
INIT_LIST_HEAD(&clp->cl_delegations);
spin_lock_init(&clp->cl_lock);
INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
}
}
-static int nfs_sockaddr_match_ipaddr4(const struct sockaddr_in *sa1,
- const struct sockaddr_in *sa2)
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+static const struct in6_addr *nfs_map_ipv4_addr(const struct sockaddr *sa, struct in6_addr *addr_mapped)
{
- return sa1->sin_addr.s_addr == sa2->sin_addr.s_addr;
+ switch (sa->sa_family) {
+ default:
+ return NULL;
+ case AF_INET6:
+ return &((const struct sockaddr_in6 *)sa)->sin6_addr;
+ break;
+ case AF_INET:
+ ipv6_addr_set_v4mapped(((const struct sockaddr_in *)sa)->sin_addr.s_addr,
+ addr_mapped);
+ return addr_mapped;
+ }
}
-static int nfs_sockaddr_match_ipaddr6(const struct sockaddr_in6 *sa1,
- const struct sockaddr_in6 *sa2)
+static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
+ const struct sockaddr *sa2)
+{
+ const struct in6_addr *addr1;
+ const struct in6_addr *addr2;
+ struct in6_addr addr1_mapped;
+ struct in6_addr addr2_mapped;
+
+ addr1 = nfs_map_ipv4_addr(sa1, &addr1_mapped);
+ if (likely(addr1 != NULL)) {
+ addr2 = nfs_map_ipv4_addr(sa2, &addr2_mapped);
+ if (likely(addr2 != NULL))
+ return ipv6_addr_equal(addr1, addr2);
+ }
+ return 0;
+}
+#else
+static int nfs_sockaddr_match_ipaddr4(const struct sockaddr_in *sa1,
+ const struct sockaddr_in *sa2)
{
- return ipv6_addr_equal(&sa1->sin6_addr, &sa2->sin6_addr);
+ return sa1->sin_addr.s_addr == sa2->sin_addr.s_addr;
}
static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
const struct sockaddr *sa2)
{
- switch (sa1->sa_family) {
- case AF_INET:
- return nfs_sockaddr_match_ipaddr4((const struct sockaddr_in *)sa1,
- (const struct sockaddr_in *)sa2);
- case AF_INET6:
- return nfs_sockaddr_match_ipaddr6((const struct sockaddr_in6 *)sa1,
- (const struct sockaddr_in6 *)sa2);
- }
- BUG();
+ if (unlikely(sa1->sa_family != AF_INET || sa2->sa_family != AF_INET))
+ return 0;
+ return nfs_sockaddr_match_ipaddr4((const struct sockaddr_in *)sa1,
+ (const struct sockaddr_in *)sa2);
}
+#endif
/*
* Find a client by IP address and protocol version
if (clp->rpc_ops->version != nfsversion)
continue;
- if (addr->sa_family != clap->sa_family)
- continue;
/* Match only the IP address, not the port number */
if (!nfs_sockaddr_match_ipaddr(addr, clap))
continue;
if (clp->rpc_ops->version != nfsvers)
continue;
- if (sap->sa_family != clap->sa_family)
- continue;
/* Match only the IP address, not the port number */
if (!nfs_sockaddr_match_ipaddr(sap, clap))
continue;
static int nfs_create_rpc_client(struct nfs_client *clp,
const struct rpc_timeout *timeparms,
rpc_authflavor_t flavor,
- int flags)
+ int discrtry, int noresvport)
{
struct rpc_clnt *clnt = NULL;
struct rpc_create_args args = {
.program = &nfs_program,
.version = clp->rpc_ops->version,
.authflavor = flavor,
- .flags = flags,
};
+ if (discrtry)
+ args.flags |= RPC_CLNT_CREATE_DISCRTRY;
+ if (noresvport)
+ args.flags |= RPC_CLNT_CREATE_NONPRIVPORT;
+
if (!IS_ERR(clp->cl_rpcclient))
return 0;
.protocol = server->flags & NFS_MOUNT_TCP ?
IPPROTO_TCP : IPPROTO_UDP,
.nfs_version = clp->rpc_ops->version,
+ .noresvport = server->flags & NFS_MOUNT_NORESVPORT ?
+ 1 : 0,
};
if (nlm_init.nfs_version > 3)
* Create a client RPC handle for doing FSSTAT with UNIX auth only
* - RFC 2623, sec 2.3.2
*/
- error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX, 0);
+ error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX,
+ 0, data->flags & NFS_MOUNT_NORESVPORT);
if (error < 0)
goto error;
nfs_mark_client_ready(clp, NFS_CS_READY);
static int nfs4_init_client(struct nfs_client *clp,
const struct rpc_timeout *timeparms,
const char *ip_addr,
- rpc_authflavor_t authflavour)
+ rpc_authflavor_t authflavour,
+ int flags)
{
int error;
clp->rpc_ops = &nfs_v4_clientops;
error = nfs_create_rpc_client(clp, timeparms, authflavour,
- RPC_CLNT_CREATE_DISCRTRY);
+ 1, flags & NFS_MOUNT_NORESVPORT);
if (error < 0)
goto error;
memcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr));
error = PTR_ERR(clp);
goto error;
}
- error = nfs4_init_client(clp, timeparms, ip_addr, authflavour);
+ error = nfs4_init_client(clp, timeparms, ip_addr, authflavour,
+ server->flags);
if (error < 0)
goto error_put;
nfs_init_timeout_values(&timeparms, data->nfs_server.protocol,
data->timeo, data->retrans);
+ /* Initialise the client representation from the mount data */
+ server->flags = data->flags;
+ server->caps |= NFS_CAP_ATOMIC_OPEN;
+
/* Get a client record */
error = nfs4_set_client(server,
data->nfs_server.hostname,
if (error < 0)
goto error;
- /* Initialise the client representation from the mount data */
- server->flags = data->flags;
- server->caps |= NFS_CAP_ATOMIC_OPEN;
-
if (data->rsize)
server->rsize = nfs_block_size(data->rsize, NULL);
if (data->wsize)
parent_server = NFS_SB(data->sb);
parent_client = parent_server->nfs_client;
+ /* Initialise the client representation from the parent server */
+ nfs_server_copy_userdata(server, parent_server);
+ server->caps |= NFS_CAP_ATOMIC_OPEN;
+
/* Get a client representation.
* Note: NFSv4 always uses TCP, */
error = nfs4_set_client(server, data->hostname,
if (error < 0)
goto error;
- /* Initialise the client representation from the parent server */
- nfs_server_copy_userdata(server, parent_server);
- server->caps |= NFS_CAP_ATOMIC_OPEN;
-
error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout, data->authflavor);
if (error < 0)
goto error;
put_rpccred(cred);
}
+void nfs_mark_delegation_referenced(struct nfs_delegation *delegation)
+{
+ set_bit(NFS_DELEGATION_REFERENCED, &delegation->flags);
+}
+
+int nfs_have_delegation(struct inode *inode, fmode_t flags)
+{
+ struct nfs_delegation *delegation;
+ int ret = 0;
+
+ flags &= FMODE_READ|FMODE_WRITE;
+ rcu_read_lock();
+ delegation = rcu_dereference(NFS_I(inode)->delegation);
+ if (delegation != NULL && (delegation->type & flags) == flags) {
+ nfs_mark_delegation_referenced(delegation);
+ ret = 1;
+ }
+ rcu_read_unlock();
+ return ret;
+}
+
static int nfs_delegation_claim_locks(struct nfs_open_context *ctx, struct nfs4_state *state)
{
struct inode *inode = state->inode;
delegation->maxsize = res->maxsize;
oldcred = delegation->cred;
delegation->cred = get_rpccred(cred);
- delegation->flags &= ~NFS_DELEGATION_NEED_RECLAIM;
+ clear_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags);
NFS_I(inode)->delegation_state = delegation->type;
smp_wmb();
put_rpccred(oldcred);
return res;
}
+static struct inode *nfs_delegation_grab_inode(struct nfs_delegation *delegation)
+{
+ struct inode *inode = NULL;
+
+ spin_lock(&delegation->lock);
+ if (delegation->inode != NULL)
+ inode = igrab(delegation->inode);
+ spin_unlock(&delegation->lock);
+ return inode;
+}
+
static struct nfs_delegation *nfs_detach_delegation_locked(struct nfs_inode *nfsi, const nfs4_stateid *stateid)
{
struct nfs_delegation *delegation = rcu_dereference(nfsi->delegation);
if (delegation == NULL)
goto nomatch;
+ spin_lock(&delegation->lock);
if (stateid != NULL && memcmp(delegation->stateid.data, stateid->data,
sizeof(delegation->stateid.data)) != 0)
- goto nomatch;
+ goto nomatch_unlock;
list_del_rcu(&delegation->super_list);
+ delegation->inode = NULL;
nfsi->delegation_state = 0;
rcu_assign_pointer(nfsi->delegation, NULL);
+ spin_unlock(&delegation->lock);
return delegation;
+nomatch_unlock:
+ spin_unlock(&delegation->lock);
nomatch:
return NULL;
}
delegation->change_attr = nfsi->change_attr;
delegation->cred = get_rpccred(cred);
delegation->inode = inode;
+ delegation->flags = 1<<NFS_DELEGATION_REFERENCED;
+ spin_lock_init(&delegation->lock);
spin_lock(&clp->cl_lock);
if (rcu_dereference(nfsi->delegation) != NULL) {
*/
static int __nfs_inode_return_delegation(struct inode *inode, struct nfs_delegation *delegation)
{
- struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
struct nfs_inode *nfsi = NFS_I(inode);
nfs_msync_inode(inode);
- down_read(&clp->cl_sem);
/* Guard against new delegated open calls */
down_write(&nfsi->rwsem);
nfs_delegation_claim_opens(inode, &delegation->stateid);
up_write(&nfsi->rwsem);
- up_read(&clp->cl_sem);
nfs_msync_inode(inode);
return nfs_do_return_delegation(inode, delegation, 1);
}
+/*
+ * Return all delegations that have been marked for return
+ */
+void nfs_client_return_marked_delegations(struct nfs_client *clp)
+{
+ struct nfs_delegation *delegation;
+ struct inode *inode;
+
+restart:
+ rcu_read_lock();
+ list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) {
+ if (!test_and_clear_bit(NFS_DELEGATION_RETURN, &delegation->flags))
+ continue;
+ inode = nfs_delegation_grab_inode(delegation);
+ if (inode == NULL)
+ continue;
+ spin_lock(&clp->cl_lock);
+ delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL);
+ spin_unlock(&clp->cl_lock);
+ rcu_read_unlock();
+ if (delegation != NULL)
+ __nfs_inode_return_delegation(inode, delegation);
+ iput(inode);
+ goto restart;
+ }
+ rcu_read_unlock();
+}
+
/*
* This function returns the delegation without reclaiming opens
* or protecting against delegation reclaims.
return err;
}
+static void nfs_mark_return_delegation(struct nfs_client *clp, struct nfs_delegation *delegation)
+{
+ set_bit(NFS_DELEGATION_RETURN, &delegation->flags);
+ set_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state);
+}
+
/*
* Return all delegations associated to a super block
*/
-void nfs_return_all_delegations(struct super_block *sb)
+void nfs_super_return_all_delegations(struct super_block *sb)
{
struct nfs_client *clp = NFS_SB(sb)->nfs_client;
struct nfs_delegation *delegation;
- struct inode *inode;
if (clp == NULL)
return;
-restart:
rcu_read_lock();
list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) {
- if (delegation->inode->i_sb != sb)
- continue;
- inode = igrab(delegation->inode);
- if (inode == NULL)
- continue;
- spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL);
- spin_unlock(&clp->cl_lock);
- rcu_read_unlock();
- if (delegation != NULL)
- __nfs_inode_return_delegation(inode, delegation);
- iput(inode);
- goto restart;
+ spin_lock(&delegation->lock);
+ if (delegation->inode != NULL && delegation->inode->i_sb == sb)
+ set_bit(NFS_DELEGATION_RETURN, &delegation->flags);
+ spin_unlock(&delegation->lock);
}
rcu_read_unlock();
+ nfs_client_return_marked_delegations(clp);
}
-static int nfs_do_expire_all_delegations(void *ptr)
+static void nfs_client_mark_return_all_delegations(struct nfs_client *clp)
{
- struct nfs_client *clp = ptr;
struct nfs_delegation *delegation;
- struct inode *inode;
- allow_signal(SIGKILL);
-restart:
- if (test_bit(NFS4CLNT_STATE_RECOVER, &clp->cl_state) != 0)
- goto out;
- if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) == 0)
- goto out;
rcu_read_lock();
list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) {
- inode = igrab(delegation->inode);
- if (inode == NULL)
- continue;
- spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL);
- spin_unlock(&clp->cl_lock);
- rcu_read_unlock();
- if (delegation)
- __nfs_inode_return_delegation(inode, delegation);
- iput(inode);
- goto restart;
+ set_bit(NFS_DELEGATION_RETURN, &delegation->flags);
+ set_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state);
}
rcu_read_unlock();
-out:
- nfs_put_client(clp);
- module_put_and_exit(0);
+}
+
+static void nfs_delegation_run_state_manager(struct nfs_client *clp)
+{
+ if (test_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state))
+ nfs4_schedule_state_manager(clp);
}
void nfs_expire_all_delegations(struct nfs_client *clp)
{
- struct task_struct *task;
-
- __module_get(THIS_MODULE);
- atomic_inc(&clp->cl_count);
- task = kthread_run(nfs_do_expire_all_delegations, clp,
- "%s-delegreturn",
- rpc_peeraddr2str(clp->cl_rpcclient,
- RPC_DISPLAY_ADDR));
- if (!IS_ERR(task))
- return;
- nfs_put_client(clp);
- module_put(THIS_MODULE);
+ nfs_client_mark_return_all_delegations(clp);
+ nfs_delegation_run_state_manager(clp);
}
/*
*/
void nfs_handle_cb_pathdown(struct nfs_client *clp)
{
- struct nfs_delegation *delegation;
- struct inode *inode;
-
if (clp == NULL)
return;
-restart:
+ nfs_client_mark_return_all_delegations(clp);
+}
+
+static void nfs_client_mark_return_unreferenced_delegations(struct nfs_client *clp)
+{
+ struct nfs_delegation *delegation;
+
rcu_read_lock();
list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) {
- inode = igrab(delegation->inode);
- if (inode == NULL)
+ if (test_and_clear_bit(NFS_DELEGATION_REFERENCED, &delegation->flags))
continue;
- spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL);
- spin_unlock(&clp->cl_lock);
- rcu_read_unlock();
- if (delegation != NULL)
- __nfs_inode_return_delegation(inode, delegation);
- iput(inode);
- goto restart;
+ set_bit(NFS_DELEGATION_RETURN, &delegation->flags);
+ set_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state);
}
rcu_read_unlock();
}
-struct recall_threadargs {
- struct inode *inode;
- struct nfs_client *clp;
- const nfs4_stateid *stateid;
-
- struct completion started;
- int result;
-};
-
-static int recall_thread(void *data)
+void nfs_expire_unreferenced_delegations(struct nfs_client *clp)
{
- struct recall_threadargs *args = (struct recall_threadargs *)data;
- struct inode *inode = igrab(args->inode);
- struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
- struct nfs_inode *nfsi = NFS_I(inode);
- struct nfs_delegation *delegation;
-
- daemonize("nfsv4-delegreturn");
-
- nfs_msync_inode(inode);
- down_read(&clp->cl_sem);
- down_write(&nfsi->rwsem);
- spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(nfsi, args->stateid);
- if (delegation != NULL)
- args->result = 0;
- else
- args->result = -ENOENT;
- spin_unlock(&clp->cl_lock);
- complete(&args->started);
- nfs_delegation_claim_opens(inode, args->stateid);
- up_write(&nfsi->rwsem);
- up_read(&clp->cl_sem);
- nfs_msync_inode(inode);
-
- if (delegation != NULL)
- nfs_do_return_delegation(inode, delegation, 1);
- iput(inode);
- module_put_and_exit(0);
+ nfs_client_mark_return_unreferenced_delegations(clp);
+ nfs_delegation_run_state_manager(clp);
}
/*
*/
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid)
{
- struct recall_threadargs data = {
- .inode = inode,
- .stateid = stateid,
- };
- int status;
+ struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
+ struct nfs_delegation *delegation;
- init_completion(&data.started);
- __module_get(THIS_MODULE);
- status = kernel_thread(recall_thread, &data, CLONE_KERNEL);
- if (status < 0)
- goto out_module_put;
- wait_for_completion(&data.started);
- return data.result;
-out_module_put:
- module_put(THIS_MODULE);
- return status;
+ rcu_read_lock();
+ delegation = rcu_dereference(NFS_I(inode)->delegation);
+ if (delegation == NULL || memcmp(delegation->stateid.data, stateid->data,
+ sizeof(delegation->stateid.data)) != 0) {
+ rcu_read_unlock();
+ return -ENOENT;
+ }
+ nfs_mark_return_delegation(clp, delegation);
+ rcu_read_unlock();
+ nfs_delegation_run_state_manager(clp);
+ return 0;
}
/*
struct inode *res = NULL;
rcu_read_lock();
list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) {
- if (nfs_compare_fh(fhandle, &NFS_I(delegation->inode)->fh) == 0) {
+ spin_lock(&delegation->lock);
+ if (delegation->inode != NULL &&
+ nfs_compare_fh(fhandle, &NFS_I(delegation->inode)->fh) == 0) {
res = igrab(delegation->inode);
- break;
}
+ spin_unlock(&delegation->lock);
+ if (res != NULL)
+ break;
}
rcu_read_unlock();
return res;
struct nfs_delegation *delegation;
rcu_read_lock();
list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list)
- delegation->flags |= NFS_DELEGATION_NEED_RECLAIM;
+ set_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags);
rcu_read_unlock();
}
void nfs_delegation_reap_unclaimed(struct nfs_client *clp)
{
struct nfs_delegation *delegation;
+ struct inode *inode;
restart:
rcu_read_lock();
list_for_each_entry_rcu(delegation, &clp->cl_delegations, super_list) {
- if ((delegation->flags & NFS_DELEGATION_NEED_RECLAIM) == 0)
+ if (test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags) == 0)
+ continue;
+ inode = nfs_delegation_grab_inode(delegation);
+ if (inode == NULL)
continue;
spin_lock(&clp->cl_lock);
- delegation = nfs_detach_delegation_locked(NFS_I(delegation->inode), NULL);
+ delegation = nfs_detach_delegation_locked(NFS_I(inode), NULL);
spin_unlock(&clp->cl_lock);
rcu_read_unlock();
if (delegation != NULL)
nfs_free_delegation(delegation);
+ iput(inode);
goto restart;
}
rcu_read_unlock();
struct rpc_cred *cred;
struct inode *inode;
nfs4_stateid stateid;
- int type;
-#define NFS_DELEGATION_NEED_RECLAIM 1
- long flags;
+ fmode_t type;
loff_t maxsize;
__u64 change_attr;
+ unsigned long flags;
+ spinlock_t lock;
struct rcu_head rcu;
};
+enum {
+ NFS_DELEGATION_NEED_RECLAIM = 0,
+ NFS_DELEGATION_RETURN,
+ NFS_DELEGATION_REFERENCED,
+};
+
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
int nfs_inode_return_delegation(struct inode *inode);
void nfs_inode_return_delegation_noreclaim(struct inode *inode);
struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs_fh *fhandle);
-void nfs_return_all_delegations(struct super_block *sb);
+void nfs_super_return_all_delegations(struct super_block *sb);
void nfs_expire_all_delegations(struct nfs_client *clp);
+void nfs_expire_unreferenced_delegations(struct nfs_client *clp);
void nfs_handle_cb_pathdown(struct nfs_client *clp);
+void nfs_client_return_marked_delegations(struct nfs_client *clp);
void nfs_delegation_mark_reclaim(struct nfs_client *clp);
void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl);
int nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode);
-static inline int nfs_have_delegation(struct inode *inode, int flags)
-{
- struct nfs_delegation *delegation;
- int ret = 0;
-
- flags &= FMODE_READ|FMODE_WRITE;
- rcu_read_lock();
- delegation = rcu_dereference(NFS_I(inode)->delegation);
- if (delegation != NULL && (delegation->type & flags) == flags)
- ret = 1;
- rcu_read_unlock();
- return ret;
-}
+void nfs_mark_delegation_referenced(struct nfs_delegation *delegation);
+int nfs_have_delegation(struct inode *inode, fmode_t flags);
#else
-static inline int nfs_have_delegation(struct inode *inode, int flags)
+static inline int nfs_have_delegation(struct inode *inode, fmode_t flags)
{
return 0;
}
goto out_bad;
}
+ if (nfs_have_delegation(inode, FMODE_READ))
+ goto out_set_verifier;
+
/* Force a full look up iff the parent directory has changed */
if (!nfs_is_exclusive_create(dir, nd) && nfs_check_verifier(dir, dentry)) {
if (nfs_lookup_verify_inode(inode, nd))
if ((error = nfs_refresh_inode(inode, &fattr)) != 0)
goto out_bad;
+out_set_verifier:
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
out_valid:
dput(parent);
* Use intent information to determine whether we need to substitute
* the NFSv4-style stateful OPEN for the LOOKUP call
*/
-static int is_atomic_open(struct inode *dir, struct nameidata *nd)
+static int is_atomic_open(struct nameidata *nd)
{
if (nd == NULL || nfs_lookup_check_intent(nd, LOOKUP_OPEN) == 0)
return 0;
dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
/* Check that we are indeed trying to open this file */
- if (!is_atomic_open(dir, nd))
+ if (!is_atomic_open(nd))
goto no_open;
if (dentry->d_name.len > NFS_SERVER(dir)->namelen) {
struct inode *dir;
int openflags, ret = 0;
+ if (!is_atomic_open(nd))
+ goto no_open;
parent = dget_parent(dentry);
dir = parent->d_inode;
- if (!is_atomic_open(dir, nd))
- goto no_open;
/* We can't create new files in nfs_open_revalidate(), so we
* optimize away revalidation of negative dentries.
*/
/* NFS only supports OPEN on regular files */
if (!S_ISREG(inode->i_mode))
- goto no_open;
+ goto no_open_dput;
openflags = nd->intent.open.flags;
/* We cannot do exclusive creation on a positive dentry */
if ((openflags & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
- goto no_open;
+ goto no_open_dput;
/* We can't create new files, or truncate existing ones here */
openflags &= ~(O_CREAT|O_TRUNC);
if (!ret)
d_drop(dentry);
return ret;
-no_open:
+no_open_dput:
dput(parent);
- if (inode != NULL && nfs_have_delegation(inode, FMODE_READ))
- return 1;
+no_open:
return nfs_lookup_revalidate(dentry, nd);
}
#endif /* CONFIG_NFSV4 */
cache = nfs_access_search_rbtree(inode, cred);
if (cache == NULL)
goto out;
- if (!time_in_range(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
+ if (!nfs_have_delegation(inode, FMODE_READ) &&
+ !time_in_range_open(jiffies, cache->jiffies, cache->jiffies + nfsi->attrtimeo))
goto out_stale;
res->jiffies = cache->jiffies;
res->cred = cache->cred;
/*
* Given an inode, search for an open context with the desired characteristics
*/
-struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode)
+struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_open_context *pos, *ctx = NULL;
if (nfs_have_delegation(inode, FMODE_READ))
return 0;
- /*
- * Special case: if the attribute timeout is set to 0, then always
- * treat the cache as having expired (unless holding
- * a delegation).
- */
- if (nfsi->attrtimeo == 0)
- return 1;
- return !time_in_range(jiffies, nfsi->read_cache_jiffies, nfsi->read_cache_jiffies + nfsi->attrtimeo);
+ return !time_in_range_open(jiffies, nfsi->read_cache_jiffies, nfsi->read_cache_jiffies + nfsi->attrtimeo);
}
/**
nfsi->attrtimeo_timestamp = now;
nfsi->attr_gencount = nfs_inc_attr_generation_counter();
} else {
- if (!time_in_range(now, nfsi->attrtimeo_timestamp, nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) {
+ if (!time_in_range_open(now, nfsi->attrtimeo_timestamp, nfsi->attrtimeo_timestamp + nfsi->attrtimeo)) {
if ((nfsi->attrtimeo <<= 1) > NFS_MAXATTRTIMEO(inode))
nfsi->attrtimeo = NFS_MAXATTRTIMEO(inode);
nfsi->attrtimeo_timestamp = now;
struct security_mnt_opts lsm_opts;
};
+/* mount_clnt.c */
+struct nfs_mount_request {
+ struct sockaddr *sap;
+ size_t salen;
+ char *hostname;
+ char *dirpath;
+ u32 version;
+ unsigned short protocol;
+ struct nfs_fh *fh;
+ int noresvport;
+};
+
+extern int nfs_mount(struct nfs_mount_request *info);
+
/* client.c */
extern struct rpc_program nfs_program;
/**
* nfs_mount - Obtain an NFS file handle for the given host and path
- * @addr: pointer to server's address
- * @len: size of server's address
- * @hostname: name of server host, or NULL
- * @path: pointer to string containing export path to mount
- * @version: mount version to use for this request
- * @protocol: transport protocol to use for thie request
- * @fh: pointer to location to place returned file handle
+ * @info: pointer to mount request arguments
*
* Uses default timeout parameters specified by underlying transport.
*/
-int nfs_mount(struct sockaddr *addr, size_t len, char *hostname, char *path,
- int version, int protocol, struct nfs_fh *fh)
+int nfs_mount(struct nfs_mount_request *info)
{
struct mnt_fhstatus result = {
- .fh = fh
+ .fh = info->fh
};
struct rpc_message msg = {
- .rpc_argp = path,
+ .rpc_argp = info->dirpath,
.rpc_resp = &result,
};
struct rpc_create_args args = {
- .protocol = protocol,
- .address = addr,
- .addrsize = len,
- .servername = hostname,
+ .protocol = info->protocol,
+ .address = info->sap,
+ .addrsize = info->salen,
+ .servername = info->hostname,
.program = &mnt_program,
- .version = version,
+ .version = info->version,
.authflavor = RPC_AUTH_UNIX,
- .flags = 0,
};
struct rpc_clnt *mnt_clnt;
int status;
dprintk("NFS: sending MNT request for %s:%s\n",
- (hostname ? hostname : "server"), path);
+ (info->hostname ? info->hostname : "server"),
+ info->dirpath);
+
+ if (info->noresvport)
+ args.flags |= RPC_CLNT_CREATE_NONPRIVPORT;
mnt_clnt = rpc_create(&args);
if (IS_ERR(mnt_clnt))
goto out_clnt_err;
- if (version == NFS_MNT3_VERSION)
+ if (info->version == NFS_MNT3_VERSION)
msg.rpc_proc = &mnt_clnt->cl_procinfo[MOUNTPROC3_MNT];
else
msg.rpc_proc = &mnt_clnt->cl_procinfo[MNTPROC_MNT];
((err) != NFSERR_NOFILEHANDLE))
enum nfs4_client_state {
- NFS4CLNT_STATE_RECOVER = 0,
+ NFS4CLNT_MANAGER_RUNNING = 0,
+ NFS4CLNT_CHECK_LEASE,
NFS4CLNT_LEASE_EXPIRED,
+ NFS4CLNT_RECLAIM_REBOOT,
+ NFS4CLNT_RECLAIM_NOGRACE,
+ NFS4CLNT_DELEGRETURN,
};
/*
spinlock_t so_lock;
atomic_t so_count;
+ unsigned long so_flags;
struct list_head so_states;
struct list_head so_delegations;
struct nfs_seqid_counter so_seqid;
struct rpc_sequence so_sequence;
};
+enum {
+ NFS_OWNER_RECLAIM_REBOOT,
+ NFS_OWNER_RECLAIM_NOGRACE
+};
+
/*
* struct nfs4_state maintains the client-side state for a given
* (state_owner,inode) tuple (OPEN) or state_owner (LOCK).
NFS_O_RDONLY_STATE, /* OPEN stateid has read-only state */
NFS_O_WRONLY_STATE, /* OPEN stateid has write-only state */
NFS_O_RDWR_STATE, /* OPEN stateid has read/write state */
+ NFS_STATE_RECLAIM_REBOOT, /* OPEN stateid server rebooted */
+ NFS_STATE_RECLAIM_NOGRACE, /* OPEN stateid needs to recover state */
};
struct nfs4_state {
unsigned int n_rdonly; /* Number of read-only references */
unsigned int n_wronly; /* Number of write-only references */
unsigned int n_rdwr; /* Number of read/write references */
- int state; /* State on the server (R,W, or RW) */
+ fmode_t state; /* State on the server (R,W, or RW) */
atomic_t count;
};
struct nfs4_exception {
long timeout;
int retry;
+ struct nfs4_state *state;
};
struct nfs4_state_recovery_ops {
+ int owner_flag_bit;
+ int state_flag_bit;
int (*recover_open)(struct nfs4_state_owner *, struct nfs4_state *);
int (*recover_lock)(struct nfs4_state *, struct file_lock *);
};
/* nfs4proc.c */
-extern int nfs4_map_errors(int err);
extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *);
extern int nfs4_proc_setclientid_confirm(struct nfs_client *, struct rpc_cred *);
extern int nfs4_proc_async_renew(struct nfs_client *, struct rpc_cred *);
struct nfs4_fs_locations *fs_locations, struct page *page);
extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;
-extern struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops;
+extern struct nfs4_state_recovery_ops nfs4_nograce_recovery_ops;
extern const u32 nfs4_fattr_bitmap[2];
extern const u32 nfs4_statfs_bitmap[2];
extern void nfs4_renew_state(struct work_struct *);
/* nfs4state.c */
-struct rpc_cred *nfs4_get_renew_cred(struct nfs_client *clp);
+struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp);
extern struct nfs4_state_owner * nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *);
extern void nfs4_put_state_owner(struct nfs4_state_owner *);
extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
extern void nfs4_put_open_state(struct nfs4_state *);
-extern void nfs4_close_state(struct path *, struct nfs4_state *, mode_t);
-extern void nfs4_close_sync(struct path *, struct nfs4_state *, mode_t);
-extern void nfs4_state_set_mode_locked(struct nfs4_state *, mode_t);
+extern void nfs4_close_state(struct path *, struct nfs4_state *, fmode_t);
+extern void nfs4_close_sync(struct path *, struct nfs4_state *, fmode_t);
+extern void nfs4_state_set_mode_locked(struct nfs4_state *, fmode_t);
extern void nfs4_schedule_state_recovery(struct nfs_client *);
+extern void nfs4_schedule_state_manager(struct nfs_client *);
+extern int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
struct nfs4_opendata;
static int _nfs4_proc_open(struct nfs4_opendata *data);
static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
-static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *);
-static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception);
-static int nfs4_wait_clnt_recover(struct rpc_clnt *clnt, struct nfs_client *clp);
+static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *, struct nfs4_state *);
static int _nfs4_proc_lookup(struct inode *dir, const struct qstr *name, struct nfs_fh *fhandle, struct nfs_fattr *fattr);
static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fattr *fattr);
/* Prevent leaks of NFSv4 errors into userland */
-int nfs4_map_errors(int err)
+static int nfs4_map_errors(int err)
{
if (err < -1000) {
dprintk("%s could not handle NFSv4 error %d\n",
kunmap_atomic(start, KM_USER0);
}
+static int nfs4_wait_bit_killable(void *word)
+{
+ if (fatal_signal_pending(current))
+ return -ERESTARTSYS;
+ schedule();
+ return 0;
+}
+
+static int nfs4_wait_clnt_recover(struct nfs_client *clp)
+{
+ int res;
+
+ might_sleep();
+
+ res = wait_on_bit(&clp->cl_state, NFS4CLNT_MANAGER_RUNNING,
+ nfs4_wait_bit_killable, TASK_KILLABLE);
+ return res;
+}
+
+static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
+{
+ int res = 0;
+
+ might_sleep();
+
+ if (*timeout <= 0)
+ *timeout = NFS4_POLL_RETRY_MIN;
+ if (*timeout > NFS4_POLL_RETRY_MAX)
+ *timeout = NFS4_POLL_RETRY_MAX;
+ schedule_timeout_killable(*timeout);
+ if (fatal_signal_pending(current))
+ res = -ERESTARTSYS;
+ *timeout <<= 1;
+ return res;
+}
+
+/* This is the error handling routine for processes that are allowed
+ * to sleep.
+ */
+static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
+{
+ struct nfs_client *clp = server->nfs_client;
+ struct nfs4_state *state = exception->state;
+ int ret = errorcode;
+
+ exception->retry = 0;
+ switch(errorcode) {
+ case 0:
+ return 0;
+ case -NFS4ERR_ADMIN_REVOKED:
+ case -NFS4ERR_BAD_STATEID:
+ case -NFS4ERR_OPENMODE:
+ if (state == NULL)
+ break;
+ nfs4_state_mark_reclaim_nograce(clp, state);
+ case -NFS4ERR_STALE_CLIENTID:
+ case -NFS4ERR_STALE_STATEID:
+ case -NFS4ERR_EXPIRED:
+ nfs4_schedule_state_recovery(clp);
+ ret = nfs4_wait_clnt_recover(clp);
+ if (ret == 0)
+ exception->retry = 1;
+ break;
+ case -NFS4ERR_FILE_OPEN:
+ case -NFS4ERR_GRACE:
+ case -NFS4ERR_DELAY:
+ ret = nfs4_delay(server->client, &exception->timeout);
+ if (ret != 0)
+ break;
+ case -NFS4ERR_OLD_STATEID:
+ exception->retry = 1;
+ }
+ /* We failed to handle the error */
+ return nfs4_map_errors(ret);
+}
+
+
static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
{
struct nfs_client *clp = server->nfs_client;
}
static struct nfs4_opendata *nfs4_opendata_alloc(struct path *path,
- struct nfs4_state_owner *sp, int flags,
+ struct nfs4_state_owner *sp, fmode_t fmode, int flags,
const struct iattr *attrs)
{
struct dentry *parent = dget_parent(path->dentry);
p->owner = sp;
atomic_inc(&sp->so_count);
p->o_arg.fh = NFS_FH(dir);
- p->o_arg.open_flags = flags,
+ p->o_arg.open_flags = flags;
+ p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
p->o_arg.clientid = server->nfs_client->cl_clientid;
p->o_arg.id = sp->so_owner_id.id;
p->o_arg.name = &p->path.dentry->d_name;
return ret;
}
-static int can_open_cached(struct nfs4_state *state, int mode)
+static int can_open_cached(struct nfs4_state *state, fmode_t mode, int open_mode)
{
int ret = 0;
- switch (mode & (FMODE_READ|FMODE_WRITE|O_EXCL)) {
+
+ if (open_mode & O_EXCL)
+ goto out;
+ switch (mode & (FMODE_READ|FMODE_WRITE)) {
case FMODE_READ:
ret |= test_bit(NFS_O_RDONLY_STATE, &state->flags) != 0;
break;
case FMODE_READ|FMODE_WRITE:
ret |= test_bit(NFS_O_RDWR_STATE, &state->flags) != 0;
}
+out:
return ret;
}
-static int can_open_delegated(struct nfs_delegation *delegation, mode_t open_flags)
+static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode)
{
- if ((delegation->type & open_flags) != open_flags)
+ if ((delegation->type & fmode) != fmode)
return 0;
- if (delegation->flags & NFS_DELEGATION_NEED_RECLAIM)
+ if (test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags))
return 0;
+ nfs_mark_delegation_referenced(delegation);
return 1;
}
-static void update_open_stateflags(struct nfs4_state *state, mode_t open_flags)
+static void update_open_stateflags(struct nfs4_state *state, fmode_t fmode)
{
- switch (open_flags) {
+ switch (fmode) {
case FMODE_WRITE:
state->n_wronly++;
break;
case FMODE_READ|FMODE_WRITE:
state->n_rdwr++;
}
- nfs4_state_set_mode_locked(state, state->state | open_flags);
+ nfs4_state_set_mode_locked(state, state->state | fmode);
}
-static void nfs_set_open_stateid_locked(struct nfs4_state *state, nfs4_stateid *stateid, int open_flags)
+static void nfs_set_open_stateid_locked(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode)
{
if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)
memcpy(state->stateid.data, stateid->data, sizeof(state->stateid.data));
memcpy(state->open_stateid.data, stateid->data, sizeof(state->open_stateid.data));
- switch (open_flags) {
+ switch (fmode) {
case FMODE_READ:
set_bit(NFS_O_RDONLY_STATE, &state->flags);
break;
}
}
-static void nfs_set_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, int open_flags)
+static void nfs_set_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, fmode_t fmode)
{
write_seqlock(&state->seqlock);
- nfs_set_open_stateid_locked(state, stateid, open_flags);
+ nfs_set_open_stateid_locked(state, stateid, fmode);
write_sequnlock(&state->seqlock);
}
-static void update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_stateid, nfs4_stateid *deleg_stateid, int open_flags)
+static void __update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_stateid, const nfs4_stateid *deleg_stateid, fmode_t fmode)
{
- open_flags &= (FMODE_READ|FMODE_WRITE);
/*
* Protect the call to nfs4_state_set_mode_locked and
* serialise the stateid update
set_bit(NFS_DELEGATED_STATE, &state->flags);
}
if (open_stateid != NULL)
- nfs_set_open_stateid_locked(state, open_stateid, open_flags);
+ nfs_set_open_stateid_locked(state, open_stateid, fmode);
write_sequnlock(&state->seqlock);
spin_lock(&state->owner->so_lock);
- update_open_stateflags(state, open_flags);
+ update_open_stateflags(state, fmode);
spin_unlock(&state->owner->so_lock);
}
-static void nfs4_return_incompatible_delegation(struct inode *inode, mode_t open_flags)
+static int update_open_stateid(struct nfs4_state *state, nfs4_stateid *open_stateid, nfs4_stateid *delegation, fmode_t fmode)
+{
+ struct nfs_inode *nfsi = NFS_I(state->inode);
+ struct nfs_delegation *deleg_cur;
+ int ret = 0;
+
+ fmode &= (FMODE_READ|FMODE_WRITE);
+
+ rcu_read_lock();
+ deleg_cur = rcu_dereference(nfsi->delegation);
+ if (deleg_cur == NULL)
+ goto no_delegation;
+
+ spin_lock(&deleg_cur->lock);
+ if (nfsi->delegation != deleg_cur ||
+ (deleg_cur->type & fmode) != fmode)
+ goto no_delegation_unlock;
+
+ if (delegation == NULL)
+ delegation = &deleg_cur->stateid;
+ else if (memcmp(deleg_cur->stateid.data, delegation->data, NFS4_STATEID_SIZE) != 0)
+ goto no_delegation_unlock;
+
+ nfs_mark_delegation_referenced(deleg_cur);
+ __update_open_stateid(state, open_stateid, &deleg_cur->stateid, fmode);
+ ret = 1;
+no_delegation_unlock:
+ spin_unlock(&deleg_cur->lock);
+no_delegation:
+ rcu_read_unlock();
+
+ if (!ret && open_stateid != NULL) {
+ __update_open_stateid(state, open_stateid, NULL, fmode);
+ ret = 1;
+ }
+
+ return ret;
+}
+
+
+static void nfs4_return_incompatible_delegation(struct inode *inode, fmode_t fmode)
{
struct nfs_delegation *delegation;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
- if (delegation == NULL || (delegation->type & open_flags) == open_flags) {
+ if (delegation == NULL || (delegation->type & fmode) == fmode) {
rcu_read_unlock();
return;
}
struct nfs4_state *state = opendata->state;
struct nfs_inode *nfsi = NFS_I(state->inode);
struct nfs_delegation *delegation;
- int open_mode = opendata->o_arg.open_flags & (FMODE_READ|FMODE_WRITE|O_EXCL);
+ int open_mode = opendata->o_arg.open_flags & O_EXCL;
+ fmode_t fmode = opendata->o_arg.fmode;
nfs4_stateid stateid;
int ret = -EAGAIN;
- rcu_read_lock();
- delegation = rcu_dereference(nfsi->delegation);
for (;;) {
- if (can_open_cached(state, open_mode)) {
+ if (can_open_cached(state, fmode, open_mode)) {
spin_lock(&state->owner->so_lock);
- if (can_open_cached(state, open_mode)) {
- update_open_stateflags(state, open_mode);
+ if (can_open_cached(state, fmode, open_mode)) {
+ update_open_stateflags(state, fmode);
spin_unlock(&state->owner->so_lock);
- rcu_read_unlock();
goto out_return_state;
}
spin_unlock(&state->owner->so_lock);
}
- if (delegation == NULL)
- break;
- if (!can_open_delegated(delegation, open_mode))
+ rcu_read_lock();
+ delegation = rcu_dereference(nfsi->delegation);
+ if (delegation == NULL ||
+ !can_open_delegated(delegation, fmode)) {
+ rcu_read_unlock();
break;
+ }
/* Save the delegation */
memcpy(stateid.data, delegation->stateid.data, sizeof(stateid.data));
rcu_read_unlock();
if (ret != 0)
goto out;
ret = -EAGAIN;
- rcu_read_lock();
- delegation = rcu_dereference(nfsi->delegation);
- /* If no delegation, try a cached open */
- if (delegation == NULL)
- continue;
- /* Is the delegation still valid? */
- if (memcmp(stateid.data, delegation->stateid.data, sizeof(stateid.data)) != 0)
- continue;
- rcu_read_unlock();
- update_open_stateid(state, NULL, &stateid, open_mode);
- goto out_return_state;
+
+ /* Try to update the stateid using the delegation */
+ if (update_open_stateid(state, NULL, &stateid, fmode))
+ goto out_return_state;
}
- rcu_read_unlock();
out:
return ERR_PTR(ret);
out_return_state:
struct inode *inode;
struct nfs4_state *state = NULL;
struct nfs_delegation *delegation;
- nfs4_stateid *deleg_stateid = NULL;
int ret;
if (!data->rpc_done) {
if (delegation)
delegation_flags = delegation->flags;
rcu_read_unlock();
- if (!(delegation_flags & NFS_DELEGATION_NEED_RECLAIM))
+ if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
nfs_inode_set_delegation(state->inode,
data->owner->so_cred,
&data->o_res);
data->owner->so_cred,
&data->o_res);
}
- rcu_read_lock();
- delegation = rcu_dereference(NFS_I(inode)->delegation);
- if (delegation != NULL)
- deleg_stateid = &delegation->stateid;
- update_open_stateid(state, &data->o_res.stateid, deleg_stateid, data->o_arg.open_flags);
- rcu_read_unlock();
+
+ update_open_stateid(state, &data->o_res.stateid, NULL,
+ data->o_arg.fmode);
iput(inode);
out:
return state;
{
struct nfs4_opendata *opendata;
- opendata = nfs4_opendata_alloc(&ctx->path, state->owner, 0, NULL);
+ opendata = nfs4_opendata_alloc(&ctx->path, state->owner, 0, 0, NULL);
if (opendata == NULL)
return ERR_PTR(-ENOMEM);
opendata->state = state;
return opendata;
}
-static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, mode_t openflags, struct nfs4_state **res)
+static int nfs4_open_recover_helper(struct nfs4_opendata *opendata, fmode_t fmode, struct nfs4_state **res)
{
struct nfs4_state *newstate;
int ret;
- opendata->o_arg.open_flags = openflags;
+ opendata->o_arg.open_flags = 0;
+ opendata->o_arg.fmode = fmode;
memset(&opendata->o_res, 0, sizeof(opendata->o_res));
memset(&opendata->c_res, 0, sizeof(opendata->c_res));
nfs4_init_opendata_res(opendata);
newstate = nfs4_opendata_to_nfs4_state(opendata);
if (IS_ERR(newstate))
return PTR_ERR(newstate);
- nfs4_close_state(&opendata->path, newstate, openflags);
+ nfs4_close_state(&opendata->path, newstate, fmode);
*res = newstate;
return 0;
}
{
struct nfs_delegation *delegation;
struct nfs4_opendata *opendata;
- int delegation_type = 0;
+ fmode_t delegation_type = 0;
int status;
opendata = nfs4_open_recoverdata_alloc(ctx, state);
opendata->o_arg.fh = NFS_FH(state->inode);
rcu_read_lock();
delegation = rcu_dereference(NFS_I(state->inode)->delegation);
- if (delegation != NULL && (delegation->flags & NFS_DELEGATION_NEED_RECLAIM) != 0)
+ if (delegation != NULL && test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags) != 0)
delegation_type = delegation->type;
rcu_read_unlock();
opendata->o_arg.u.delegation_type = delegation_type;
goto out_free;
state = nfs4_opendata_to_nfs4_state(data);
if (!IS_ERR(state))
- nfs4_close_state(&data->path, state, data->o_arg.open_flags);
+ nfs4_close_state(&data->path, state, data->o_arg.fmode);
out_free:
nfs4_opendata_put(data);
}
if (data->state != NULL) {
struct nfs_delegation *delegation;
- if (can_open_cached(data->state, data->o_arg.open_flags & (FMODE_READ|FMODE_WRITE|O_EXCL)))
+ if (can_open_cached(data->state, data->o_arg.fmode, data->o_arg.open_flags))
goto out_no_action;
rcu_read_lock();
delegation = rcu_dereference(NFS_I(data->state->inode)->delegation);
if (delegation != NULL &&
- (delegation->flags & NFS_DELEGATION_NEED_RECLAIM) == 0) {
+ test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags) == 0) {
rcu_read_unlock();
goto out_no_action;
}
goto out_free;
state = nfs4_opendata_to_nfs4_state(data);
if (!IS_ERR(state))
- nfs4_close_state(&data->path, state, data->o_arg.open_flags);
+ nfs4_close_state(&data->path, state, data->o_arg.fmode);
out_free:
nfs4_opendata_put(data);
}
int ret;
for (;;) {
- ret = nfs4_wait_clnt_recover(server->client, clp);
+ ret = nfs4_wait_clnt_recover(clp);
if (ret != 0)
return ret;
- if (!test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
+ if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) &&
+ !test_bit(NFS4CLNT_CHECK_LEASE,&clp->cl_state))
break;
nfs4_schedule_state_recovery(clp);
}
do {
err = _nfs4_open_expired(ctx, state);
- if (err == -NFS4ERR_DELAY)
- nfs4_handle_exception(server, err, &exception);
+ if (err != -NFS4ERR_DELAY)
+ break;
+ nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
return err;
}
/*
* Returns a referenced nfs4_state
*/
-static int _nfs4_do_open(struct inode *dir, struct path *path, int flags, struct iattr *sattr, struct rpc_cred *cred, struct nfs4_state **res)
+static int _nfs4_do_open(struct inode *dir, struct path *path, fmode_t fmode, int flags, struct iattr *sattr, struct rpc_cred *cred, struct nfs4_state **res)
{
struct nfs4_state_owner *sp;
struct nfs4_state *state = NULL;
struct nfs_server *server = NFS_SERVER(dir);
- struct nfs_client *clp = server->nfs_client;
struct nfs4_opendata *opendata;
int status;
if (status != 0)
goto err_put_state_owner;
if (path->dentry->d_inode != NULL)
- nfs4_return_incompatible_delegation(path->dentry->d_inode, flags & (FMODE_READ|FMODE_WRITE));
- down_read(&clp->cl_sem);
+ nfs4_return_incompatible_delegation(path->dentry->d_inode, fmode);
status = -ENOMEM;
- opendata = nfs4_opendata_alloc(path, sp, flags, sattr);
+ opendata = nfs4_opendata_alloc(path, sp, fmode, flags, sattr);
if (opendata == NULL)
- goto err_release_rwsem;
+ goto err_put_state_owner;
if (path->dentry->d_inode != NULL)
opendata->state = nfs4_get_open_state(path->dentry->d_inode, sp);
goto err_opendata_put;
nfs4_opendata_put(opendata);
nfs4_put_state_owner(sp);
- up_read(&clp->cl_sem);
*res = state;
return 0;
err_opendata_put:
nfs4_opendata_put(opendata);
-err_release_rwsem:
- up_read(&clp->cl_sem);
err_put_state_owner:
nfs4_put_state_owner(sp);
out_err:
}
-static struct nfs4_state *nfs4_do_open(struct inode *dir, struct path *path, int flags, struct iattr *sattr, struct rpc_cred *cred)
+static struct nfs4_state *nfs4_do_open(struct inode *dir, struct path *path, fmode_t fmode, int flags, struct iattr *sattr, struct rpc_cred *cred)
{
struct nfs4_exception exception = { };
struct nfs4_state *res;
int status;
do {
- status = _nfs4_do_open(dir, path, flags, sattr, cred, &res);
+ status = _nfs4_do_open(dir, path, fmode, flags, sattr, cred, &res);
if (status == 0)
break;
/* NOTE: BAD_SEQID means the server and client disagree about the
renew_lease(server, calldata->timestamp);
break;
case -NFS4ERR_STALE_STATEID:
+ case -NFS4ERR_OLD_STATEID:
+ case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_EXPIRED:
- break;
+ if (calldata->arg.fmode == 0)
+ break;
default:
- if (nfs4_async_handle_error(task, server) == -EAGAIN) {
+ if (nfs4_async_handle_error(task, server, state) == -EAGAIN) {
rpc_restart_call(task);
return;
}
nfs_fattr_init(calldata->res.fattr);
if (test_bit(NFS_O_RDONLY_STATE, &state->flags) != 0) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
- calldata->arg.open_flags = FMODE_READ;
+ calldata->arg.fmode = FMODE_READ;
} else if (test_bit(NFS_O_WRONLY_STATE, &state->flags) != 0) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
- calldata->arg.open_flags = FMODE_WRITE;
+ calldata->arg.fmode = FMODE_WRITE;
}
calldata->timestamp = jiffies;
rpc_call_start(task);
calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid);
if (calldata->arg.seqid == NULL)
goto out_free_calldata;
+ calldata->arg.fmode = 0;
calldata->arg.bitmask = server->attr_bitmask;
calldata->res.fattr = &calldata->fattr;
calldata->res.seqid = calldata->arg.seqid;
return status;
}
-static int nfs4_intent_set_file(struct nameidata *nd, struct path *path, struct nfs4_state *state)
+static int nfs4_intent_set_file(struct nameidata *nd, struct path *path, struct nfs4_state *state, fmode_t fmode)
{
struct file *filp;
int ret;
/* If the open_intent is for execute, we have an extra check to make */
- if (nd->intent.open.flags & FMODE_EXEC) {
+ if (fmode & FMODE_EXEC) {
ret = nfs_may_open(state->inode,
state->owner->so_cred,
nd->intent.open.flags);
}
ret = PTR_ERR(filp);
out_close:
- nfs4_close_sync(path, state, nd->intent.open.flags);
+ nfs4_close_sync(path, state, fmode & (FMODE_READ|FMODE_WRITE));
return ret;
}
struct rpc_cred *cred;
struct nfs4_state *state;
struct dentry *res;
+ fmode_t fmode = nd->intent.open.flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC);
if (nd->flags & LOOKUP_CREATE) {
attr.ia_mode = nd->intent.open.create_mode;
parent = dentry->d_parent;
/* Protect against concurrent sillydeletes */
nfs_block_sillyrename(parent);
- state = nfs4_do_open(dir, &path, nd->intent.open.flags, &attr, cred);
+ state = nfs4_do_open(dir, &path, fmode, nd->intent.open.flags, &attr, cred);
put_rpccred(cred);
if (IS_ERR(state)) {
if (PTR_ERR(state) == -ENOENT) {
path.dentry = res;
nfs_set_verifier(path.dentry, nfs_save_change_attribute(dir));
nfs_unblock_sillyrename(parent);
- nfs4_intent_set_file(nd, &path, state);
+ nfs4_intent_set_file(nd, &path, state, fmode);
return res;
}
};
struct rpc_cred *cred;
struct nfs4_state *state;
+ fmode_t fmode = openflags & (FMODE_READ | FMODE_WRITE);
cred = rpc_lookup_cred();
if (IS_ERR(cred))
return PTR_ERR(cred);
- state = nfs4_do_open(dir, &path, openflags, NULL, cred);
+ state = nfs4_do_open(dir, &path, fmode, openflags, NULL, cred);
put_rpccred(cred);
if (IS_ERR(state)) {
switch (PTR_ERR(state)) {
}
if (state->inode == dentry->d_inode) {
nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
- nfs4_intent_set_file(nd, &path, state);
+ nfs4_intent_set_file(nd, &path, state, fmode);
return 1;
}
- nfs4_close_sync(&path, state, openflags);
+ nfs4_close_sync(&path, state, fmode);
out_drop:
d_drop(dentry);
return 0;
};
struct nfs4_state *state;
struct rpc_cred *cred;
+ fmode_t fmode = flags & (FMODE_READ | FMODE_WRITE);
int status = 0;
cred = rpc_lookup_cred();
status = PTR_ERR(cred);
goto out;
}
- state = nfs4_do_open(dir, &path, flags, sattr, cred);
+ state = nfs4_do_open(dir, &path, fmode, flags, sattr, cred);
d_drop(dentry);
if (IS_ERR(state)) {
status = PTR_ERR(state);
nfs_post_op_update_inode(state->inode, &fattr);
}
if (status == 0 && (nd->flags & LOOKUP_OPEN) != 0)
- status = nfs4_intent_set_file(nd, &path, state);
+ status = nfs4_intent_set_file(nd, &path, state, fmode);
else
- nfs4_close_sync(&path, state, flags);
+ nfs4_close_sync(&path, state, fmode);
out_putcred:
put_rpccred(cred);
out:
{
struct nfs_removeres *res = task->tk_msg.rpc_resp;
- if (nfs4_async_handle_error(task, res->server) == -EAGAIN)
+ if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
nfs_post_op_update_inode(dir, &res->dir_attr);
{
struct nfs_server *server = NFS_SERVER(data->inode);
- if (nfs4_async_handle_error(task, server) == -EAGAIN) {
+ if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
rpc_restart_call(task);
return -EAGAIN;
}
{
struct inode *inode = data->inode;
- if (nfs4_async_handle_error(task, NFS_SERVER(inode)) == -EAGAIN) {
+ if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
rpc_restart_call(task);
return -EAGAIN;
}
{
struct inode *inode = data->inode;
- if (nfs4_async_handle_error(task, NFS_SERVER(inode)) == -EAGAIN) {
+ if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
rpc_restart_call(task);
return -EAGAIN;
}
}
static int
-nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server)
+nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
{
struct nfs_client *clp = server->nfs_client;
if (!clp || task->tk_status >= 0)
return 0;
switch(task->tk_status) {
+ case -NFS4ERR_ADMIN_REVOKED:
+ case -NFS4ERR_BAD_STATEID:
+ case -NFS4ERR_OPENMODE:
+ if (state == NULL)
+ break;
+ nfs4_state_mark_reclaim_nograce(clp, state);
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_EXPIRED:
rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL);
nfs4_schedule_state_recovery(clp);
- if (test_bit(NFS4CLNT_STATE_RECOVER, &clp->cl_state) == 0)
+ if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0)
rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
task->tk_status = 0;
return -EAGAIN;
return 0;
}
-static int nfs4_wait_bit_killable(void *word)
-{
- if (fatal_signal_pending(current))
- return -ERESTARTSYS;
- schedule();
- return 0;
-}
-
-static int nfs4_wait_clnt_recover(struct rpc_clnt *clnt, struct nfs_client *clp)
-{
- int res;
-
- might_sleep();
-
- rwsem_acquire(&clp->cl_sem.dep_map, 0, 0, _RET_IP_);
-
- res = wait_on_bit(&clp->cl_state, NFS4CLNT_STATE_RECOVER,
- nfs4_wait_bit_killable, TASK_KILLABLE);
-
- rwsem_release(&clp->cl_sem.dep_map, 1, _RET_IP_);
- return res;
-}
-
-static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
-{
- int res = 0;
-
- might_sleep();
-
- if (*timeout <= 0)
- *timeout = NFS4_POLL_RETRY_MIN;
- if (*timeout > NFS4_POLL_RETRY_MAX)
- *timeout = NFS4_POLL_RETRY_MAX;
- schedule_timeout_killable(*timeout);
- if (fatal_signal_pending(current))
- res = -ERESTARTSYS;
- *timeout <<= 1;
- return res;
-}
-
-/* This is the error handling routine for processes that are allowed
- * to sleep.
- */
-static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
-{
- struct nfs_client *clp = server->nfs_client;
- int ret = errorcode;
-
- exception->retry = 0;
- switch(errorcode) {
- case 0:
- return 0;
- case -NFS4ERR_STALE_CLIENTID:
- case -NFS4ERR_STALE_STATEID:
- case -NFS4ERR_EXPIRED:
- nfs4_schedule_state_recovery(clp);
- ret = nfs4_wait_clnt_recover(server->client, clp);
- if (ret == 0)
- exception->retry = 1;
- break;
- case -NFS4ERR_FILE_OPEN:
- case -NFS4ERR_GRACE:
- case -NFS4ERR_DELAY:
- ret = nfs4_delay(server->client, &exception->timeout);
- if (ret != 0)
- break;
- case -NFS4ERR_OLD_STATEID:
- exception->retry = 1;
- }
- /* We failed to handle the error */
- return nfs4_map_errors(ret);
-}
-
int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, unsigned short port, struct rpc_cred *cred)
{
nfs4_verifier sc_verifier;
spin_lock(&clp->cl_lock);
clp->cl_lease_time = fsinfo.lease_time * HZ;
clp->cl_last_renewal = now;
- clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
spin_unlock(&clp->cl_lock);
}
return status;
struct nfs4_lock_state *lsp;
int status;
- down_read(&clp->cl_sem);
arg.lock_owner.clientid = clp->cl_clientid;
status = nfs4_set_lock_state(state, request);
if (status != 0)
}
request->fl_ops->fl_release_private(request);
out:
- up_read(&clp->cl_sem);
return status;
}
sizeof(calldata->lsp->ls_stateid.data));
renew_lease(calldata->server, calldata->timestamp);
break;
+ case -NFS4ERR_BAD_STATEID:
+ case -NFS4ERR_OLD_STATEID:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_EXPIRED:
break;
default:
- if (nfs4_async_handle_error(task, calldata->server) == -EAGAIN)
+ if (nfs4_async_handle_error(task, calldata->server, NULL) == -EAGAIN)
rpc_restart_call(task);
}
}
static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
{
+ struct nfs_inode *nfsi = NFS_I(state->inode);
struct nfs_seqid *seqid;
struct nfs4_lock_state *lsp;
struct rpc_task *task;
status = nfs4_set_lock_state(state, request);
/* Unlock _before_ we do the RPC call */
request->fl_flags |= FL_EXISTS;
- if (do_vfs_lock(request->fl_file, request) == -ENOENT)
+ down_read(&nfsi->rwsem);
+ if (do_vfs_lock(request->fl_file, request) == -ENOENT) {
+ up_read(&nfsi->rwsem);
goto out;
+ }
+ up_read(&nfsi->rwsem);
if (status != 0)
goto out;
/* Is this a delegated lock? */
static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock *request)
{
- struct nfs_client *clp = state->owner->so_client;
+ struct nfs_inode *nfsi = NFS_I(state->inode);
unsigned char fl_flags = request->fl_flags;
int status;
status = do_vfs_lock(request->fl_file, request);
if (status < 0)
goto out;
- down_read(&clp->cl_sem);
+ down_read(&nfsi->rwsem);
if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
- struct nfs_inode *nfsi = NFS_I(state->inode);
/* Yes: cache locks! */
- down_read(&nfsi->rwsem);
/* ...but avoid races with delegation recall... */
- if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
- request->fl_flags = fl_flags & ~FL_SLEEP;
- status = do_vfs_lock(request->fl_file, request);
- up_read(&nfsi->rwsem);
- goto out_unlock;
- }
- up_read(&nfsi->rwsem);
+ request->fl_flags = fl_flags & ~FL_SLEEP;
+ status = do_vfs_lock(request->fl_file, request);
+ goto out_unlock;
}
status = _nfs4_do_setlk(state, cmd, request, 0);
if (status != 0)
if (do_vfs_lock(request->fl_file, request) < 0)
printk(KERN_WARNING "%s: VFS is out of sync with lock manager!\n", __func__);
out_unlock:
- up_read(&clp->cl_sem);
+ up_read(&nfsi->rwsem);
out:
request->fl_flags = fl_flags;
return status;
}
struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops = {
+ .owner_flag_bit = NFS_OWNER_RECLAIM_REBOOT,
+ .state_flag_bit = NFS_STATE_RECLAIM_REBOOT,
.recover_open = nfs4_open_reclaim,
.recover_lock = nfs4_lock_reclaim,
};
-struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops = {
+struct nfs4_state_recovery_ops nfs4_nograce_recovery_ops = {
+ .owner_flag_bit = NFS_OWNER_RECLAIM_NOGRACE,
+ .state_flag_bit = NFS_STATE_RECLAIM_NOGRACE,
.recover_open = nfs4_open_expired,
.recover_lock = nfs4_lock_expired,
};
long lease, timeout;
unsigned long last, now;
- down_read(&clp->cl_sem);
dprintk("%s: start\n", __func__);
/* Are there any active superblocks? */
if (list_empty(&clp->cl_superblocks))
timeout = (2 * lease) / 3 + (long)last - (long)now;
/* Are we close to a lease timeout? */
if (time_after(now, last + lease/3)) {
- cred = nfs4_get_renew_cred(clp);
+ cred = nfs4_get_renew_cred_locked(clp);
+ spin_unlock(&clp->cl_lock);
if (cred == NULL) {
- set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
- spin_unlock(&clp->cl_lock);
+ if (list_empty(&clp->cl_delegations)) {
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ goto out;
+ }
nfs_expire_all_delegations(clp);
- goto out;
+ } else {
+ /* Queue an asynchronous RENEW. */
+ nfs4_proc_async_renew(clp, cred);
+ put_rpccred(cred);
}
- spin_unlock(&clp->cl_lock);
- /* Queue an asynchronous RENEW. */
- nfs4_proc_async_renew(clp, cred);
- put_rpccred(cred);
timeout = (2 * lease) / 3;
spin_lock(&clp->cl_lock);
} else
cancel_delayed_work(&clp->cl_renewd);
schedule_delayed_work(&clp->cl_renewd, timeout);
spin_unlock(&clp->cl_lock);
+ nfs_expire_unreferenced_delegations(clp);
out:
- up_read(&clp->cl_sem);
dprintk("%s: done\n", __func__);
}
-/* Must be called with clp->cl_sem locked for writes */
void
nfs4_schedule_state_renewal(struct nfs_client *clp)
{
return status;
}
-static struct rpc_cred *nfs4_get_machine_cred(struct nfs_client *clp)
+static struct rpc_cred *nfs4_get_machine_cred_locked(struct nfs_client *clp)
{
struct rpc_cred *cred = NULL;
- spin_lock(&clp->cl_lock);
if (clp->cl_machine_cred != NULL)
cred = get_rpccred(clp->cl_machine_cred);
- spin_unlock(&clp->cl_lock);
return cred;
}
put_rpccred(cred);
}
-struct rpc_cred *nfs4_get_renew_cred(struct nfs_client *clp)
+struct rpc_cred *nfs4_get_renew_cred_locked(struct nfs_client *clp)
{
struct nfs4_state_owner *sp;
struct rb_node *pos;
return cred;
}
+static struct rpc_cred *nfs4_get_renew_cred(struct nfs_client *clp)
+{
+ struct rpc_cred *cred;
+
+ spin_lock(&clp->cl_lock);
+ cred = nfs4_get_renew_cred_locked(clp);
+ spin_unlock(&clp->cl_lock);
+ return cred;
+}
+
static struct rpc_cred *nfs4_get_setclientid_cred(struct nfs_client *clp)
{
struct nfs4_state_owner *sp;
struct rb_node *pos;
struct rpc_cred *cred;
- cred = nfs4_get_machine_cred(clp);
+ spin_lock(&clp->cl_lock);
+ cred = nfs4_get_machine_cred_locked(clp);
if (cred != NULL)
goto out;
pos = rb_first(&clp->cl_state_owners);
cred = get_rpccred(sp->so_cred);
}
out:
+ spin_unlock(&clp->cl_lock);
return cred;
}
}
}
-/*
- * Note: must be called with clp->cl_sem held in order to prevent races
- * with reboot recovery!
- */
struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server, struct rpc_cred *cred)
{
struct nfs_client *clp = server->nfs_client;
return sp;
}
-/*
- * Must be called with clp->cl_sem held in order to avoid races
- * with state recovery...
- */
void nfs4_put_state_owner(struct nfs4_state_owner *sp)
{
struct nfs_client *clp = sp->so_client;
}
void
-nfs4_state_set_mode_locked(struct nfs4_state *state, mode_t mode)
+nfs4_state_set_mode_locked(struct nfs4_state *state, fmode_t fmode)
{
- if (state->state == mode)
+ if (state->state == fmode)
return;
/* NB! List reordering - see the reclaim code for why. */
- if ((mode & FMODE_WRITE) != (state->state & FMODE_WRITE)) {
- if (mode & FMODE_WRITE)
+ if ((fmode & FMODE_WRITE) != (state->state & FMODE_WRITE)) {
+ if (fmode & FMODE_WRITE)
list_move(&state->open_states, &state->owner->so_states);
else
list_move_tail(&state->open_states, &state->owner->so_states);
}
- state->state = mode;
+ state->state = fmode;
}
static struct nfs4_state *
return state;
}
-/*
- * Beware! Caller must be holding exactly one
- * reference to clp->cl_sem!
- */
void nfs4_put_open_state(struct nfs4_state *state)
{
struct inode *inode = state->inode;
/*
* Close the current file.
*/
-static void __nfs4_close(struct path *path, struct nfs4_state *state, mode_t mode, int wait)
+static void __nfs4_close(struct path *path, struct nfs4_state *state, fmode_t fmode, int wait)
{
struct nfs4_state_owner *owner = state->owner;
int call_close = 0;
- int newstate;
+ fmode_t newstate;
atomic_inc(&owner->so_count);
/* Protect against nfs4_find_state() */
spin_lock(&owner->so_lock);
- switch (mode & (FMODE_READ | FMODE_WRITE)) {
+ switch (fmode & (FMODE_READ | FMODE_WRITE)) {
case FMODE_READ:
state->n_rdonly--;
break;
nfs4_do_close(path, state, wait);
}
-void nfs4_close_state(struct path *path, struct nfs4_state *state, mode_t mode)
+void nfs4_close_state(struct path *path, struct nfs4_state *state, fmode_t fmode)
{
- __nfs4_close(path, state, mode, 0);
+ __nfs4_close(path, state, fmode, 0);
}
-void nfs4_close_sync(struct path *path, struct nfs4_state *state, mode_t mode)
+void nfs4_close_sync(struct path *path, struct nfs4_state *state, fmode_t fmode)
{
- __nfs4_close(path, state, mode, 1);
+ __nfs4_close(path, state, fmode, 1);
}
/*
* Return a compatible lock_state. If no initialized lock_state structure
* exists, return an uninitialized one.
*
- * The caller must be holding clp->cl_sem
*/
static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
{
return status;
}
-static int reclaimer(void *);
+static int nfs4_run_state_manager(void *);
-static inline void nfs4_clear_recover_bit(struct nfs_client *clp)
+static void nfs4_clear_state_manager_bit(struct nfs_client *clp)
{
smp_mb__before_clear_bit();
- clear_bit(NFS4CLNT_STATE_RECOVER, &clp->cl_state);
+ clear_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state);
smp_mb__after_clear_bit();
- wake_up_bit(&clp->cl_state, NFS4CLNT_STATE_RECOVER);
+ wake_up_bit(&clp->cl_state, NFS4CLNT_MANAGER_RUNNING);
rpc_wake_up(&clp->cl_rpcwaitq);
}
/*
- * State recovery routine
+ * Schedule the nfs_client asynchronous state management routine
*/
-static void nfs4_recover_state(struct nfs_client *clp)
+void nfs4_schedule_state_manager(struct nfs_client *clp)
{
struct task_struct *task;
+ if (test_and_set_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) != 0)
+ return;
__module_get(THIS_MODULE);
atomic_inc(&clp->cl_count);
- task = kthread_run(reclaimer, clp, "%s-reclaim",
+ task = kthread_run(nfs4_run_state_manager, clp, "%s-manager",
rpc_peeraddr2str(clp->cl_rpcclient,
RPC_DISPLAY_ADDR));
if (!IS_ERR(task))
return;
- nfs4_clear_recover_bit(clp);
+ nfs4_clear_state_manager_bit(clp);
nfs_put_client(clp);
module_put(THIS_MODULE);
}
{
if (!clp)
return;
- if (test_and_set_bit(NFS4CLNT_STATE_RECOVER, &clp->cl_state) == 0)
- nfs4_recover_state(clp);
+ if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
+ set_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
+ nfs4_schedule_state_manager(clp);
}
-static int nfs4_reclaim_locks(struct nfs4_state_recovery_ops *ops, struct nfs4_state *state)
+static int nfs4_state_mark_reclaim_reboot(struct nfs_client *clp, struct nfs4_state *state)
+{
+
+ set_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags);
+ /* Don't recover state that expired before the reboot */
+ if (test_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags)) {
+ clear_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags);
+ return 0;
+ }
+ set_bit(NFS_OWNER_RECLAIM_REBOOT, &state->owner->so_flags);
+ set_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state);
+ return 1;
+}
+
+int nfs4_state_mark_reclaim_nograce(struct nfs_client *clp, struct nfs4_state *state)
+{
+ set_bit(NFS_STATE_RECLAIM_NOGRACE, &state->flags);
+ clear_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags);
+ set_bit(NFS_OWNER_RECLAIM_NOGRACE, &state->owner->so_flags);
+ set_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state);
+ return 1;
+}
+
+static int nfs4_reclaim_locks(struct nfs4_state *state, const struct nfs4_state_recovery_ops *ops)
{
struct inode *inode = state->inode;
+ struct nfs_inode *nfsi = NFS_I(inode);
struct file_lock *fl;
int status = 0;
+ down_write(&nfsi->rwsem);
for (fl = inode->i_flock; fl != NULL; fl = fl->fl_next) {
if (!(fl->fl_flags & (FL_POSIX|FL_FLOCK)))
continue;
goto out_err;
}
}
+ up_write(&nfsi->rwsem);
return 0;
out_err:
+ up_write(&nfsi->rwsem);
return status;
}
-static int nfs4_reclaim_open_state(struct nfs4_state_recovery_ops *ops, struct nfs4_state_owner *sp)
+static int nfs4_reclaim_open_state(struct nfs4_state_owner *sp, const struct nfs4_state_recovery_ops *ops)
{
struct nfs4_state *state;
struct nfs4_lock_state *lock;
* recovering after a network partition or a reboot from a
* server that doesn't support a grace period.
*/
+restart:
+ spin_lock(&sp->so_lock);
list_for_each_entry(state, &sp->so_states, open_states) {
+ if (!test_and_clear_bit(ops->state_flag_bit, &state->flags))
+ continue;
if (state->state == 0)
continue;
+ atomic_inc(&state->count);
+ spin_unlock(&sp->so_lock);
status = ops->recover_open(sp, state);
if (status >= 0) {
- status = nfs4_reclaim_locks(ops, state);
- if (status < 0)
- goto out_err;
- list_for_each_entry(lock, &state->lock_states, ls_locks) {
- if (!(lock->ls_flags & NFS_LOCK_INITIALIZED))
- printk("%s: Lock reclaim failed!\n",
+ status = nfs4_reclaim_locks(state, ops);
+ if (status >= 0) {
+ list_for_each_entry(lock, &state->lock_states, ls_locks) {
+ if (!(lock->ls_flags & NFS_LOCK_INITIALIZED))
+ printk("%s: Lock reclaim failed!\n",
__func__);
+ }
+ nfs4_put_open_state(state);
+ goto restart;
}
- continue;
}
switch (status) {
default:
printk(KERN_ERR "%s: unhandled error %d. Zeroing state\n",
__func__, status);
case -ENOENT:
- case -NFS4ERR_RECLAIM_BAD:
- case -NFS4ERR_RECLAIM_CONFLICT:
+ case -ESTALE:
/*
* Open state on this file cannot be recovered
* All we can do is revert to using the zero stateid.
/* Mark the file as being 'closed' */
state->state = 0;
break;
+ case -NFS4ERR_RECLAIM_BAD:
+ case -NFS4ERR_RECLAIM_CONFLICT:
+ nfs4_state_mark_reclaim_nograce(sp->so_client, state);
+ break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_NO_GRACE:
+ nfs4_state_mark_reclaim_nograce(sp->so_client, state);
case -NFS4ERR_STALE_CLIENTID:
goto out_err;
}
+ nfs4_put_open_state(state);
+ goto restart;
}
+ spin_unlock(&sp->so_lock);
return 0;
out_err:
+ nfs4_put_open_state(state);
return status;
}
-static void nfs4_state_mark_reclaim(struct nfs_client *clp)
+static void nfs4_clear_open_state(struct nfs4_state *state)
+{
+ struct nfs4_lock_state *lock;
+
+ clear_bit(NFS_DELEGATED_STATE, &state->flags);
+ clear_bit(NFS_O_RDONLY_STATE, &state->flags);
+ clear_bit(NFS_O_WRONLY_STATE, &state->flags);
+ clear_bit(NFS_O_RDWR_STATE, &state->flags);
+ list_for_each_entry(lock, &state->lock_states, ls_locks) {
+ lock->ls_seqid.flags = 0;
+ lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
+ }
+}
+
+static void nfs4_state_mark_reclaim_helper(struct nfs_client *clp, int (*mark_reclaim)(struct nfs_client *clp, struct nfs4_state *state))
{
struct nfs4_state_owner *sp;
struct rb_node *pos;
struct nfs4_state *state;
- struct nfs4_lock_state *lock;
/* Reset all sequence ids to zero */
for (pos = rb_first(&clp->cl_state_owners); pos != NULL; pos = rb_next(pos)) {
sp = rb_entry(pos, struct nfs4_state_owner, so_client_node);
- sp->so_seqid.counter = 0;
sp->so_seqid.flags = 0;
spin_lock(&sp->so_lock);
list_for_each_entry(state, &sp->so_states, open_states) {
- clear_bit(NFS_DELEGATED_STATE, &state->flags);
- clear_bit(NFS_O_RDONLY_STATE, &state->flags);
- clear_bit(NFS_O_WRONLY_STATE, &state->flags);
- clear_bit(NFS_O_RDWR_STATE, &state->flags);
- list_for_each_entry(lock, &state->lock_states, ls_locks) {
- lock->ls_seqid.counter = 0;
- lock->ls_seqid.flags = 0;
- lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
- }
+ if (mark_reclaim(clp, state))
+ nfs4_clear_open_state(state);
}
spin_unlock(&sp->so_lock);
}
}
-static int reclaimer(void *ptr)
+static void nfs4_state_start_reclaim_reboot(struct nfs_client *clp)
+{
+ /* Mark all delegations for reclaim */
+ nfs_delegation_mark_reclaim(clp);
+ nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_reboot);
+}
+
+static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp)
{
- struct nfs_client *clp = ptr;
struct nfs4_state_owner *sp;
struct rb_node *pos;
- struct nfs4_state_recovery_ops *ops;
- struct rpc_cred *cred;
+ struct nfs4_state *state;
+
+ if (!test_and_clear_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
+ return;
+
+ for (pos = rb_first(&clp->cl_state_owners); pos != NULL; pos = rb_next(pos)) {
+ sp = rb_entry(pos, struct nfs4_state_owner, so_client_node);
+ spin_lock(&sp->so_lock);
+ list_for_each_entry(state, &sp->so_states, open_states) {
+ if (!test_and_clear_bit(NFS_STATE_RECLAIM_REBOOT, &state->flags))
+ continue;
+ nfs4_state_mark_reclaim_nograce(clp, state);
+ }
+ spin_unlock(&sp->so_lock);
+ }
+
+ nfs_delegation_reap_unclaimed(clp);
+}
+
+static void nfs_delegation_clear_all(struct nfs_client *clp)
+{
+ nfs_delegation_mark_reclaim(clp);
+ nfs_delegation_reap_unclaimed(clp);
+}
+
+static void nfs4_state_start_reclaim_nograce(struct nfs_client *clp)
+{
+ nfs_delegation_clear_all(clp);
+ nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_nograce);
+}
+
+static void nfs4_state_end_reclaim_nograce(struct nfs_client *clp)
+{
+ clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state);
+}
+
+static void nfs4_recovery_handle_error(struct nfs_client *clp, int error)
+{
+ switch (error) {
+ case -NFS4ERR_CB_PATH_DOWN:
+ nfs_handle_cb_pathdown(clp);
+ break;
+ case -NFS4ERR_STALE_CLIENTID:
+ case -NFS4ERR_LEASE_MOVED:
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ nfs4_state_start_reclaim_reboot(clp);
+ break;
+ case -NFS4ERR_EXPIRED:
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ nfs4_state_start_reclaim_nograce(clp);
+ }
+}
+
+static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recovery_ops *ops)
+{
+ struct rb_node *pos;
int status = 0;
- allow_signal(SIGKILL);
+restart:
+ spin_lock(&clp->cl_lock);
+ for (pos = rb_first(&clp->cl_state_owners); pos != NULL; pos = rb_next(pos)) {
+ struct nfs4_state_owner *sp = rb_entry(pos, struct nfs4_state_owner, so_client_node);
+ if (!test_and_clear_bit(ops->owner_flag_bit, &sp->so_flags))
+ continue;
+ atomic_inc(&sp->so_count);
+ spin_unlock(&clp->cl_lock);
+ status = nfs4_reclaim_open_state(sp, ops);
+ if (status < 0) {
+ set_bit(ops->owner_flag_bit, &sp->so_flags);
+ nfs4_put_state_owner(sp);
+ nfs4_recovery_handle_error(clp, status);
+ return status;
+ }
+ nfs4_put_state_owner(sp);
+ goto restart;
+ }
+ spin_unlock(&clp->cl_lock);
+ return status;
+}
- /* Ensure exclusive access to NFSv4 state */
- down_write(&clp->cl_sem);
- /* Are there any NFS mounts out there? */
- if (list_empty(&clp->cl_superblocks))
- goto out;
-restart_loop:
- ops = &nfs4_network_partition_recovery_ops;
- /* Are there any open files on this volume? */
+static int nfs4_check_lease(struct nfs_client *clp)
+{
+ struct rpc_cred *cred;
+ int status = -NFS4ERR_EXPIRED;
+
+ /* Is the client already known to have an expired lease? */
+ if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
+ return 0;
cred = nfs4_get_renew_cred(clp);
- if (cred != NULL) {
- /* Yes there are: try to renew the old lease */
- status = nfs4_proc_renew(clp, cred);
- put_rpccred(cred);
- switch (status) {
- case 0:
- case -NFS4ERR_CB_PATH_DOWN:
- goto out;
- case -NFS4ERR_STALE_CLIENTID:
- case -NFS4ERR_LEASE_MOVED:
- ops = &nfs4_reboot_recovery_ops;
- }
- } else {
- /* "reboot" to ensure we clear all state on the server */
- clp->cl_boot_time = CURRENT_TIME;
+ if (cred == NULL) {
+ cred = nfs4_get_setclientid_cred(clp);
+ if (cred == NULL)
+ goto out;
}
- /* We're going to have to re-establish a clientid */
- nfs4_state_mark_reclaim(clp);
- status = -ENOENT;
+ status = nfs4_proc_renew(clp, cred);
+ put_rpccred(cred);
+out:
+ nfs4_recovery_handle_error(clp, status);
+ return status;
+}
+
+static int nfs4_reclaim_lease(struct nfs_client *clp)
+{
+ struct rpc_cred *cred;
+ int status = -ENOENT;
+
cred = nfs4_get_setclientid_cred(clp);
if (cred != NULL) {
status = nfs4_init_client(clp, cred);
/* Handle case where the user hasn't set up machine creds */
if (status == -EACCES && cred == clp->cl_machine_cred) {
nfs4_clear_machine_cred(clp);
- goto restart_loop;
+ status = -EAGAIN;
}
}
- if (status)
- goto out_error;
- /* Mark all delegations for reclaim */
- nfs_delegation_mark_reclaim(clp);
- /* Note: list is protected by exclusive lock on cl->cl_sem */
- for (pos = rb_first(&clp->cl_state_owners); pos != NULL; pos = rb_next(pos)) {
- sp = rb_entry(pos, struct nfs4_state_owner, so_client_node);
- status = nfs4_reclaim_open_state(ops, sp);
- if (status < 0) {
- if (status == -NFS4ERR_NO_GRACE) {
- ops = &nfs4_network_partition_recovery_ops;
- status = nfs4_reclaim_open_state(ops, sp);
+ return status;
+}
+
+static void nfs4_state_manager(struct nfs_client *clp)
+{
+ int status = 0;
+
+ /* Ensure exclusive access to NFSv4 state */
+ for(;;) {
+ if (test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) {
+ /* We're going to have to re-establish a clientid */
+ status = nfs4_reclaim_lease(clp);
+ if (status) {
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ if (status == -EAGAIN)
+ continue;
+ goto out_error;
}
+ clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state);
+ }
+
+ if (test_and_clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state)) {
+ status = nfs4_check_lease(clp);
+ if (status != 0)
+ continue;
+ }
+
+ /* First recover reboot state... */
+ if (test_and_clear_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
+ status = nfs4_do_reclaim(clp, &nfs4_reboot_recovery_ops);
if (status == -NFS4ERR_STALE_CLIENTID)
- goto restart_loop;
- if (status == -NFS4ERR_EXPIRED)
- goto restart_loop;
+ continue;
+ nfs4_state_end_reclaim_reboot(clp);
+ continue;
+ }
+
+ /* Now recover expired state... */
+ if (test_and_clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state)) {
+ status = nfs4_do_reclaim(clp, &nfs4_nograce_recovery_ops);
+ if (status < 0) {
+ set_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state);
+ if (status == -NFS4ERR_STALE_CLIENTID)
+ continue;
+ if (status == -NFS4ERR_EXPIRED)
+ continue;
+ goto out_error;
+ } else
+ nfs4_state_end_reclaim_nograce(clp);
+ continue;
}
+
+ if (test_and_clear_bit(NFS4CLNT_DELEGRETURN, &clp->cl_state)) {
+ nfs_client_return_marked_delegations(clp);
+ continue;
+ }
+
+ nfs4_clear_state_manager_bit(clp);
+ /* Did we race with an attempt to give us more work? */
+ if (clp->cl_state == 0)
+ break;
+ if (test_and_set_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) != 0)
+ break;
}
- nfs_delegation_reap_unclaimed(clp);
-out:
- up_write(&clp->cl_sem);
- if (status == -NFS4ERR_CB_PATH_DOWN)
- nfs_handle_cb_pathdown(clp);
- nfs4_clear_recover_bit(clp);
+ return;
+out_error:
+ printk(KERN_WARNING "Error: state manager failed on NFSv4 server %s"
+ " with error %d\n", clp->cl_hostname, -status);
+ if (test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
+ nfs4_state_end_reclaim_reboot(clp);
+ nfs4_clear_state_manager_bit(clp);
+}
+
+static int nfs4_run_state_manager(void *ptr)
+{
+ struct nfs_client *clp = ptr;
+
+ allow_signal(SIGKILL);
+ nfs4_state_manager(clp);
nfs_put_client(clp);
module_put_and_exit(0);
return 0;
-out_error:
- printk(KERN_WARNING "Error: state recovery failed on NFSv4 server %s"
- " with error %d\n", clp->cl_hostname, -status);
- set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
- goto out;
}
/*
*
* Kendrick Smith <kmsmith@umich.edu>
* Andy Adamson <andros@umich.edu>
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
#define NFS4_MAXTAGLEN 0
#endif
-/* lock,open owner id:
+/* lock,open owner id:
* we currently use size 2 (u64) out of (NFS4_OPAQUE_LIMIT >> 2)
*/
#define open_owner_id_maxsz (1 + 4)
struct compound_hdr {
int32_t status;
uint32_t nops;
+ __be32 * nops_p;
uint32_t taglen;
char * tag;
};
xdr_encode_opaque(p, str, len);
}
-static int encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
+static void encode_compound_hdr(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(hdr->taglen);
WRITEMEM(hdr->tag, hdr->taglen);
WRITE32(NFS4_MINOR_VERSION);
+ hdr->nops_p = p;
WRITE32(hdr->nops);
- return 0;
+}
+
+static void encode_nops(struct compound_hdr *hdr)
+{
+ *hdr->nops_p = htonl(hdr->nops);
}
static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *verf)
xdr_encode_opaque_fixed(p, verf->data, NFS4_VERIFIER_SIZE);
}
-static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
+static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const struct nfs_server *server)
{
char owner_name[IDMAP_NAMESZ];
char owner_group[IDMAP_NAMESZ];
int len;
uint32_t bmval0 = 0;
uint32_t bmval1 = 0;
- int status;
/*
* We reserve enough space to write the entire attribute buffer at once.
bmval1 |= FATTR4_WORD1_TIME_MODIFY_SET;
WRITE32(NFS4_SET_TO_SERVER_TIME);
}
-
+
/*
* Now we backfill the bitmap and the attribute buffer length.
*/
*q++ = htonl(bmval1);
*q++ = htonl(len);
- status = 0;
/* out: */
- return status;
}
-static int encode_access(struct xdr_stream *xdr, u32 access)
+static void encode_access(struct xdr_stream *xdr, u32 access, struct compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(8);
WRITE32(OP_ACCESS);
WRITE32(access);
-
- return 0;
+ hdr->nops++;
}
-static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
+static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(OP_CLOSE);
WRITE32(arg->seqid->sequence->counter);
WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE);
-
- return 0;
+ hdr->nops++;
}
-static int encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args)
+static void encode_commit(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
{
__be32 *p;
-
- RESERVE_SPACE(16);
- WRITE32(OP_COMMIT);
- WRITE64(args->offset);
- WRITE32(args->count);
- return 0;
+ RESERVE_SPACE(16);
+ WRITE32(OP_COMMIT);
+ WRITE64(args->offset);
+ WRITE32(args->count);
+ hdr->nops++;
}
-static int encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create)
+static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *create, struct compound_hdr *hdr)
{
__be32 *p;
-
+
RESERVE_SPACE(8);
WRITE32(OP_CREATE);
WRITE32(create->ftype);
RESERVE_SPACE(4 + create->name->len);
WRITE32(create->name->len);
WRITEMEM(create->name->name, create->name->len);
+ hdr->nops++;
- return encode_attrs(xdr, create->attrs, create->server);
+ encode_attrs(xdr, create->attrs, create->server);
}
-static int encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap)
+static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
{
- __be32 *p;
+ __be32 *p;
- RESERVE_SPACE(12);
- WRITE32(OP_GETATTR);
- WRITE32(1);
- WRITE32(bitmap);
- return 0;
+ RESERVE_SPACE(12);
+ WRITE32(OP_GETATTR);
+ WRITE32(1);
+ WRITE32(bitmap);
+ hdr->nops++;
}
-static int encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1)
+static void encode_getattr_two(struct xdr_stream *xdr, uint32_t bm0, uint32_t bm1, struct compound_hdr *hdr)
{
- __be32 *p;
+ __be32 *p;
- RESERVE_SPACE(16);
- WRITE32(OP_GETATTR);
- WRITE32(2);
- WRITE32(bm0);
- WRITE32(bm1);
- return 0;
+ RESERVE_SPACE(16);
+ WRITE32(OP_GETATTR);
+ WRITE32(2);
+ WRITE32(bm0);
+ WRITE32(bm1);
+ hdr->nops++;
}
-static int encode_getfattr(struct xdr_stream *xdr, const u32* bitmask)
+static void encode_getfattr(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
{
- return encode_getattr_two(xdr,
- bitmask[0] & nfs4_fattr_bitmap[0],
- bitmask[1] & nfs4_fattr_bitmap[1]);
+ encode_getattr_two(xdr, bitmask[0] & nfs4_fattr_bitmap[0],
+ bitmask[1] & nfs4_fattr_bitmap[1], hdr);
}
-static int encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask)
+static void encode_fsinfo(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
{
- return encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
- bitmask[1] & nfs4_fsinfo_bitmap[1]);
+ encode_getattr_two(xdr, bitmask[0] & nfs4_fsinfo_bitmap[0],
+ bitmask[1] & nfs4_fsinfo_bitmap[1], hdr);
}
-static int encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask)
+static void encode_fs_locations(struct xdr_stream *xdr, const u32* bitmask, struct compound_hdr *hdr)
{
- return encode_getattr_two(xdr,
- bitmask[0] & nfs4_fs_locations_bitmap[0],
- bitmask[1] & nfs4_fs_locations_bitmap[1]);
+ encode_getattr_two(xdr, bitmask[0] & nfs4_fs_locations_bitmap[0],
+ bitmask[1] & nfs4_fs_locations_bitmap[1], hdr);
}
-static int encode_getfh(struct xdr_stream *xdr)
+static void encode_getfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(4);
WRITE32(OP_GETFH);
-
- return 0;
+ hdr->nops++;
}
-static int encode_link(struct xdr_stream *xdr, const struct qstr *name)
+static void encode_link(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(OP_LINK);
WRITE32(name->len);
WRITEMEM(name->name, name->len);
-
- return 0;
+ hdr->nops++;
}
static inline int nfs4_lock_type(struct file_lock *fl, int block)
* opcode,type,reclaim,offset,length,new_lock_owner = 32
* open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
*/
-static int encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args)
+static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args, struct compound_hdr *hdr)
{
__be32 *p;
WRITEMEM(args->lock_stateid->data, NFS4_STATEID_SIZE);
WRITE32(args->lock_seqid->sequence->counter);
}
-
- return 0;
+ hdr->nops++;
}
-static int encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args)
+static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *args, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(16);
WRITEMEM("lock id:", 8);
WRITE64(args->lock_owner.id);
-
- return 0;
+ hdr->nops++;
}
-static int encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args)
+static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *args, struct compound_hdr *hdr)
{
__be32 *p;
WRITEMEM(args->stateid->data, NFS4_STATEID_SIZE);
WRITE64(args->fl->fl_start);
WRITE64(nfs4_lock_length(args->fl));
-
- return 0;
+ hdr->nops++;
}
-static int encode_lookup(struct xdr_stream *xdr, const struct qstr *name)
+static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
int len = name->len;
__be32 *p;
WRITE32(OP_LOOKUP);
WRITE32(len);
WRITEMEM(name->name, len);
-
- return 0;
+ hdr->nops++;
}
-static void encode_share_access(struct xdr_stream *xdr, int open_flags)
+static void encode_share_access(struct xdr_stream *xdr, fmode_t fmode)
{
__be32 *p;
RESERVE_SPACE(8);
- switch (open_flags & (FMODE_READ|FMODE_WRITE)) {
- case FMODE_READ:
- WRITE32(NFS4_SHARE_ACCESS_READ);
- break;
- case FMODE_WRITE:
- WRITE32(NFS4_SHARE_ACCESS_WRITE);
- break;
- case FMODE_READ|FMODE_WRITE:
- WRITE32(NFS4_SHARE_ACCESS_BOTH);
- break;
- default:
- BUG();
+ switch (fmode & (FMODE_READ|FMODE_WRITE)) {
+ case FMODE_READ:
+ WRITE32(NFS4_SHARE_ACCESS_READ);
+ break;
+ case FMODE_WRITE:
+ WRITE32(NFS4_SHARE_ACCESS_WRITE);
+ break;
+ case FMODE_READ|FMODE_WRITE:
+ WRITE32(NFS4_SHARE_ACCESS_BOTH);
+ break;
+ default:
+ WRITE32(0);
}
WRITE32(0); /* for linux, share_deny = 0 always */
}
RESERVE_SPACE(8);
WRITE32(OP_OPEN);
WRITE32(arg->seqid->sequence->counter);
- encode_share_access(xdr, arg->open_flags);
+ encode_share_access(xdr, arg->fmode);
RESERVE_SPACE(28);
WRITE64(arg->clientid);
WRITE32(16);
RESERVE_SPACE(4);
switch(arg->open_flags & O_EXCL) {
- case 0:
- WRITE32(NFS4_CREATE_UNCHECKED);
- encode_attrs(xdr, arg->u.attrs, arg->server);
- break;
- default:
- WRITE32(NFS4_CREATE_EXCLUSIVE);
- encode_nfs4_verifier(xdr, &arg->u.verifier);
+ case 0:
+ WRITE32(NFS4_CREATE_UNCHECKED);
+ encode_attrs(xdr, arg->u.attrs, arg->server);
+ break;
+ default:
+ WRITE32(NFS4_CREATE_EXCLUSIVE);
+ encode_nfs4_verifier(xdr, &arg->u.verifier);
}
}
RESERVE_SPACE(4);
switch (arg->open_flags & O_CREAT) {
- case 0:
- WRITE32(NFS4_OPEN_NOCREATE);
- break;
- default:
- BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
- WRITE32(NFS4_OPEN_CREATE);
- encode_createmode(xdr, arg);
+ case 0:
+ WRITE32(NFS4_OPEN_NOCREATE);
+ break;
+ default:
+ BUG_ON(arg->claim != NFS4_OPEN_CLAIM_NULL);
+ WRITE32(NFS4_OPEN_CREATE);
+ encode_createmode(xdr, arg);
}
}
-static inline void encode_delegation_type(struct xdr_stream *xdr, int delegation_type)
+static inline void encode_delegation_type(struct xdr_stream *xdr, fmode_t delegation_type)
{
__be32 *p;
RESERVE_SPACE(4);
switch (delegation_type) {
- case 0:
- WRITE32(NFS4_OPEN_DELEGATE_NONE);
- break;
- case FMODE_READ:
- WRITE32(NFS4_OPEN_DELEGATE_READ);
- break;
- case FMODE_WRITE|FMODE_READ:
- WRITE32(NFS4_OPEN_DELEGATE_WRITE);
- break;
- default:
- BUG();
+ case 0:
+ WRITE32(NFS4_OPEN_DELEGATE_NONE);
+ break;
+ case FMODE_READ:
+ WRITE32(NFS4_OPEN_DELEGATE_READ);
+ break;
+ case FMODE_WRITE|FMODE_READ:
+ WRITE32(NFS4_OPEN_DELEGATE_WRITE);
+ break;
+ default:
+ BUG();
}
}
encode_string(xdr, name->len, name->name);
}
-static inline void encode_claim_previous(struct xdr_stream *xdr, int type)
+static inline void encode_claim_previous(struct xdr_stream *xdr, fmode_t type)
{
__be32 *p;
encode_string(xdr, name->len, name->name);
}
-static int encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg)
+static void encode_open(struct xdr_stream *xdr, const struct nfs_openargs *arg, struct compound_hdr *hdr)
{
encode_openhdr(xdr, arg);
encode_opentype(xdr, arg);
switch (arg->claim) {
- case NFS4_OPEN_CLAIM_NULL:
- encode_claim_null(xdr, arg->name);
- break;
- case NFS4_OPEN_CLAIM_PREVIOUS:
- encode_claim_previous(xdr, arg->u.delegation_type);
- break;
- case NFS4_OPEN_CLAIM_DELEGATE_CUR:
- encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
- break;
- default:
- BUG();
+ case NFS4_OPEN_CLAIM_NULL:
+ encode_claim_null(xdr, arg->name);
+ break;
+ case NFS4_OPEN_CLAIM_PREVIOUS:
+ encode_claim_previous(xdr, arg->u.delegation_type);
+ break;
+ case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+ encode_claim_delegate_cur(xdr, arg->name, &arg->u.delegation);
+ break;
+ default:
+ BUG();
}
- return 0;
+ hdr->nops++;
}
-static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg)
+static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_confirmargs *arg, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(OP_OPEN_CONFIRM);
WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE);
WRITE32(arg->seqid->sequence->counter);
-
- return 0;
+ hdr->nops++;
}
-static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
+static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closeargs *arg, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(OP_OPEN_DOWNGRADE);
WRITEMEM(arg->stateid->data, NFS4_STATEID_SIZE);
WRITE32(arg->seqid->sequence->counter);
- encode_share_access(xdr, arg->open_flags);
- return 0;
+ encode_share_access(xdr, arg->fmode);
+ hdr->nops++;
}
-static int
-encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh)
+static void
+encode_putfh(struct xdr_stream *xdr, const struct nfs_fh *fh, struct compound_hdr *hdr)
{
int len = fh->size;
__be32 *p;
WRITE32(OP_PUTFH);
WRITE32(len);
WRITEMEM(fh->data, len);
-
- return 0;
+ hdr->nops++;
}
-static int encode_putrootfh(struct xdr_stream *xdr)
+static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
- __be32 *p;
-
- RESERVE_SPACE(4);
- WRITE32(OP_PUTROOTFH);
+ __be32 *p;
- return 0;
+ RESERVE_SPACE(4);
+ WRITE32(OP_PUTROOTFH);
+ hdr->nops++;
}
static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
WRITEMEM(zero_stateid.data, NFS4_STATEID_SIZE);
}
-static int encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args)
+static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, struct compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(12);
WRITE64(args->offset);
WRITE32(args->count);
-
- return 0;
+ hdr->nops++;
}
-static int encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req)
+static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg *readdir, struct rpc_rqst *req, struct compound_hdr *hdr)
{
uint32_t attrs[2] = {
FATTR4_WORD0_RDATTR_ERROR|FATTR4_WORD0_FILEID,
attrs[1] &= ~FATTR4_WORD1_MOUNTED_ON_FILEID;
WRITE32(attrs[0] & readdir->bitmask[0]);
WRITE32(attrs[1] & readdir->bitmask[1]);
+ hdr->nops++;
dprintk("%s: cookie = %Lu, verifier = %08x:%08x, bitmap = %08x:%08x\n",
__func__,
(unsigned long long)readdir->cookie,
((u32 *)readdir->verifier.data)[1],
attrs[0] & readdir->bitmask[0],
attrs[1] & readdir->bitmask[1]);
-
- return 0;
}
-static int encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req)
+static void encode_readlink(struct xdr_stream *xdr, const struct nfs4_readlink *readlink, struct rpc_rqst *req, struct compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(4);
WRITE32(OP_READLINK);
-
- return 0;
+ hdr->nops++;
}
-static int encode_remove(struct xdr_stream *xdr, const struct qstr *name)
+static void encode_remove(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(OP_REMOVE);
WRITE32(name->len);
WRITEMEM(name->name, name->len);
-
- return 0;
+ hdr->nops++;
}
-static int encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname)
+static void encode_rename(struct xdr_stream *xdr, const struct qstr *oldname, const struct qstr *newname, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(OP_RENAME);
WRITE32(oldname->len);
WRITEMEM(oldname->name, oldname->len);
-
+
RESERVE_SPACE(4 + newname->len);
WRITE32(newname->len);
WRITEMEM(newname->name, newname->len);
-
- return 0;
+ hdr->nops++;
}
-static int encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid)
+static void encode_renew(struct xdr_stream *xdr, const struct nfs_client *client_stateid, struct compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(12);
WRITE32(OP_RENEW);
WRITE64(client_stateid->cl_clientid);
-
- return 0;
+ hdr->nops++;
}
-static int
-encode_restorefh(struct xdr_stream *xdr)
+static void
+encode_restorefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(4);
WRITE32(OP_RESTOREFH);
-
- return 0;
+ hdr->nops++;
}
static int
-encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
+encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg, struct compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(4);
WRITE32(arg->acl_len);
xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
+ hdr->nops++;
return 0;
}
-static int
-encode_savefh(struct xdr_stream *xdr)
+static void
+encode_savefh(struct xdr_stream *xdr, struct compound_hdr *hdr)
{
__be32 *p;
RESERVE_SPACE(4);
WRITE32(OP_SAVEFH);
-
- return 0;
+ hdr->nops++;
}
-static int encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server)
+static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs *arg, const struct nfs_server *server, struct compound_hdr *hdr)
{
- int status;
__be32 *p;
-
- RESERVE_SPACE(4+NFS4_STATEID_SIZE);
- WRITE32(OP_SETATTR);
- WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE);
- if ((status = encode_attrs(xdr, arg->iap, server)))
- return status;
-
- return 0;
+ RESERVE_SPACE(4+NFS4_STATEID_SIZE);
+ WRITE32(OP_SETATTR);
+ WRITEMEM(arg->stateid.data, NFS4_STATEID_SIZE);
+ hdr->nops++;
+ encode_attrs(xdr, arg->iap, server);
}
-static int encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid)
+static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
{
__be32 *p;
encode_string(xdr, setclientid->sc_uaddr_len, setclientid->sc_uaddr);
RESERVE_SPACE(4);
WRITE32(setclientid->sc_cb_ident);
-
- return 0;
+ hdr->nops++;
}
-static int encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state)
+static void encode_setclientid_confirm(struct xdr_stream *xdr, const struct nfs_client *client_state, struct compound_hdr *hdr)
{
- __be32 *p;
-
- RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE);
- WRITE32(OP_SETCLIENTID_CONFIRM);
- WRITE64(client_state->cl_clientid);
- WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE);
+ __be32 *p;
- return 0;
+ RESERVE_SPACE(12 + NFS4_VERIFIER_SIZE);
+ WRITE32(OP_SETCLIENTID_CONFIRM);
+ WRITE64(client_state->cl_clientid);
+ WRITEMEM(client_state->cl_confirm.data, NFS4_VERIFIER_SIZE);
+ hdr->nops++;
}
-static int encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args)
+static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *args, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(args->count);
xdr_write_pages(xdr, args->pages, args->pgbase, args->count);
-
- return 0;
+ hdr->nops++;
}
-static int encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid)
+static void encode_delegreturn(struct xdr_stream *xdr, const nfs4_stateid *stateid, struct compound_hdr *hdr)
{
__be32 *p;
WRITE32(OP_DELEGRETURN);
WRITEMEM(stateid->data, NFS4_STATEID_SIZE);
- return 0;
-
+ hdr->nops++;
}
/*
* END OF "GENERIC" ENCODE ROUTINES.
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status != 0)
- goto out;
- status = encode_access(&xdr, args->access);
- if (status != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_access(&xdr, args->access, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 4,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
- goto out;
- if ((status = encode_lookup(&xdr, args->name)) != 0)
- goto out;
- if ((status = encode_getfh(&xdr)) != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->dir_fh, &hdr);
+ encode_lookup(&xdr, args->name, &hdr);
+ encode_getfh(&xdr, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putrootfh(&xdr)) != 0)
- goto out;
- if ((status = encode_getfh(&xdr)) == 0)
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putrootfh(&xdr, &hdr);
+ encode_getfh(&xdr, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->fh)) != 0)
- goto out;
- if ((status = encode_remove(&xdr, &args->name)) != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_remove(&xdr, &args->name, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 7,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->old_dir)) != 0)
- goto out;
- if ((status = encode_savefh(&xdr)) != 0)
- goto out;
- if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
- goto out;
- if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0)
- goto out;
- if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
- goto out;
- if ((status = encode_restorefh(&xdr)) != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->old_dir, &hdr);
+ encode_savefh(&xdr, &hdr);
+ encode_putfh(&xdr, args->new_dir, &hdr);
+ encode_rename(&xdr, args->old_name, args->new_name, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_restorefh(&xdr, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 7,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->fh)) != 0)
- goto out;
- if ((status = encode_savefh(&xdr)) != 0)
- goto out;
- if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
- goto out;
- if ((status = encode_link(&xdr, args->name)) != 0)
- goto out;
- if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
- goto out;
- if ((status = encode_restorefh(&xdr)) != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_savefh(&xdr, &hdr);
+ encode_putfh(&xdr, args->dir_fh, &hdr);
+ encode_link(&xdr, args->name, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_restorefh(&xdr, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 7,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
- goto out;
- if ((status = encode_savefh(&xdr)) != 0)
- goto out;
- if ((status = encode_create(&xdr, args)) != 0)
- goto out;
- if ((status = encode_getfh(&xdr)) != 0)
- goto out;
- if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
- goto out;
- if ((status = encode_restorefh(&xdr)) != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->dir_fh, &hdr);
+ encode_savefh(&xdr, &hdr);
+ encode_create(&xdr, args, &hdr);
+ encode_getfh(&xdr, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_restorefh(&xdr, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->fh)) == 0)
- status = encode_getfattr(&xdr, args->bitmask);
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
*/
static int nfs4_xdr_enc_close(struct rpc_rqst *req, __be32 *p, struct nfs_closeargs *args)
{
- struct xdr_stream xdr;
- struct compound_hdr hdr = {
- .nops = 3,
- };
- int status;
-
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if(status)
- goto out;
- status = encode_close(&xdr, args);
- if (status != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .nops = 0,
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, &hdr);
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_close(&xdr, args, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 7,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status)
- goto out;
- status = encode_savefh(&xdr);
- if (status)
- goto out;
- status = encode_open(&xdr, args);
- if (status)
- goto out;
- status = encode_getfh(&xdr);
- if (status)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
- if (status)
- goto out;
- status = encode_restorefh(&xdr);
- if (status)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_savefh(&xdr, &hdr);
+ encode_open(&xdr, args, &hdr);
+ encode_getfh(&xdr, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_restorefh(&xdr, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if(status)
- goto out;
- status = encode_open_confirm(&xdr, args);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_open_confirm(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status)
- goto out;
- status = encode_open(&xdr, args);
- if (status)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_open(&xdr, args, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status)
- goto out;
- status = encode_open_downgrade(&xdr, args);
- if (status != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_open_downgrade(&xdr, args, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if(status)
- goto out;
- status = encode_lock(&xdr, args);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_lock(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if(status)
- goto out;
- status = encode_lockt(&xdr, args);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_lockt(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if(status)
- goto out;
- status = encode_locku(&xdr, args);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_locku(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
unsigned int replen;
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if(status)
- goto out;
- status = encode_readlink(&xdr, args, req);
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_readlink(&xdr, args, req, &hdr);
/* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status
replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_readlink_sz) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen, args->pages,
args->pgbase, args->pglen);
-
-out:
- return status;
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
int replen;
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if(status)
- goto out;
- status = encode_readdir(&xdr, args, req);
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_readdir(&xdr, args, req, &hdr);
/* set up reply kvec
* toplevel_status + taglen + rescount + OP_PUTFH + status
dprintk("%s: inlined page args = (%u, %p, %u, %u)\n",
__func__, replen, args->pages,
args->pgbase, args->count);
-
-out:
- return status;
+ encode_nops(&hdr);
+ return 0;
}
/*
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int replen, status;
+ int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status)
- goto out;
- status = encode_read(&xdr, args);
- if (status)
- goto out;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_read(&xdr, args, &hdr);
/* set up reply kvec
* toplevel status + taglen=0 + rescount + OP_PUTFH + status
xdr_inline_pages(&req->rq_rcv_buf, replen,
args->pages, args->pgbase, args->count);
req->rq_rcv_buf.flags |= XDRBUF_READ;
-out:
- return status;
+ encode_nops(&hdr);
+ return 0;
}
/*
* Encode an SETATTR request
*/
static int nfs4_xdr_enc_setattr(struct rpc_rqst *req, __be32 *p, struct nfs_setattrargs *args)
-
{
- struct xdr_stream xdr;
- struct compound_hdr hdr = {
- .nops = 3,
- };
- int status;
-
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if(status)
- goto out;
- status = encode_setattr(&xdr, args, args->server);
- if(status)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .nops = 0,
+ };
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, &hdr);
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_setattr(&xdr, args, args->server, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
struct xdr_stream xdr;
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int replen, status;
+ int replen;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status)
- goto out;
- status = encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0);
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_getattr_two(&xdr, FATTR4_WORD0_ACL, 0, &hdr);
+
/* set up reply buffer: */
replen = (RPC_REPHDRSIZE + auth->au_rslack + NFS4_dec_getacl_sz) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen,
args->acl_pages, args->acl_pgbase, args->acl_len);
-out:
- return status;
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status)
- goto out;
- status = encode_write(&xdr, args);
- if (status)
- goto out;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_write(&xdr, args, &hdr);
req->rq_snd_buf.flags |= XDRBUF_WRITE;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status)
- goto out;
- status = encode_commit(&xdr, args);
- if (status)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_commit(&xdr, args, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (!status)
- status = encode_fsinfo(&xdr, args->bitmask);
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_fsinfo(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (!status)
- status = encode_getattr_one(&xdr,
- args->bitmask[0] & nfs4_pathconf_bitmap[0]);
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_getattr_one(&xdr, args->bitmask[0] & nfs4_pathconf_bitmap[0],
+ &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status == 0)
- status = encode_getattr_two(&xdr,
- args->bitmask[0] & nfs4_statfs_bitmap[0],
- args->bitmask[1] & nfs4_statfs_bitmap[1]);
- return status;
+ encode_putfh(&xdr, args->fh, &hdr);
+ encode_getattr_two(&xdr, args->bitmask[0] & nfs4_statfs_bitmap[0],
+ args->bitmask[1] & nfs4_statfs_bitmap[1], &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, fhandle);
- if (status == 0)
- status = encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
- FATTR4_WORD0_LINK_SUPPORT|
- FATTR4_WORD0_SYMLINK_SUPPORT|
- FATTR4_WORD0_ACLSUPPORT);
- return status;
+ encode_putfh(&xdr, fhandle, &hdr);
+ encode_getattr_one(&xdr, FATTR4_WORD0_SUPPORTED_ATTRS|
+ FATTR4_WORD0_LINK_SUPPORT|
+ FATTR4_WORD0_SYMLINK_SUPPORT|
+ FATTR4_WORD0_ACLSUPPORT, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 1,
+ .nops = 0,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- return encode_renew(&xdr, clp);
+ encode_renew(&xdr, clp, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 1,
+ .nops = 0,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- return encode_setclientid(&xdr, sc);
+ encode_setclientid(&xdr, sc, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
const u32 lease_bitmap[2] = { FATTR4_WORD0_LEASE_TIME, 0 };
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_setclientid_confirm(&xdr, clp);
- if (!status)
- status = encode_putrootfh(&xdr);
- if (!status)
- status = encode_fsinfo(&xdr, lease_bitmap);
- return status;
+ encode_setclientid_confirm(&xdr, clp, &hdr);
+ encode_putrootfh(&xdr, &hdr);
+ encode_fsinfo(&xdr, lease_bitmap, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fhandle);
- if (status != 0)
- goto out;
- status = encode_delegreturn(&xdr, args->stateid);
- if (status != 0)
- goto out;
- status = encode_getfattr(&xdr, args->bitmask);
-out:
- return status;
+ encode_putfh(&xdr, args->fhandle, &hdr);
+ encode_delegreturn(&xdr, args->stateid, &hdr);
+ encode_getfattr(&xdr, args->bitmask, &hdr);
+ encode_nops(&hdr);
+ return 0;
}
/*
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 3,
+ .nops = 0,
};
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
int replen;
- int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
- goto out;
- if ((status = encode_lookup(&xdr, args->name)) != 0)
- goto out;
- if ((status = encode_fs_locations(&xdr, args->bitmask)) != 0)
- goto out;
+ encode_putfh(&xdr, args->dir_fh, &hdr);
+ encode_lookup(&xdr, args->name, &hdr);
+ encode_fs_locations(&xdr, args->bitmask, &hdr);
+
/* set up reply
* toplevel_status + OP_PUTFH + status
* + OP_LOOKUP + status + OP_GETATTR + status = 7
replen = (RPC_REPHDRSIZE + auth->au_rslack + 7) << 2;
xdr_inline_pages(&req->rq_rcv_buf, replen, &args->page,
0, PAGE_SIZE);
-out:
- return status;
+ encode_nops(&hdr);
+ return 0;
}
/*
READ_BUF(8);
READ32(hdr->status);
READ32(hdr->taglen);
-
+
READ_BUF(hdr->taglen + 4);
hdr->tag = (char *)p;
p += XDR_QUADLEN(hdr->taglen);
READ32(hdr->nops);
+ if (unlikely(hdr->nops < 1))
+ return nfs4_stat_to_errno(hdr->status);
return 0;
}
static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_res *res)
{
__be32 *savep;
- uint32_t attrlen,
- bitmap[2] = {0};
+ uint32_t attrlen, bitmap[2] = {0};
int status;
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
dprintk("%s: xdr returned %d!\n", __func__, -status);
return status;
}
-
+
static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
{
__be32 *savep;
- uint32_t attrlen,
- bitmap[2] = {0};
+ uint32_t attrlen, bitmap[2] = {0};
int status;
-
+
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
goto xdr_error;
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf)
{
__be32 *savep;
- uint32_t attrlen,
- bitmap[2] = {0};
+ uint32_t attrlen, bitmap[2] = {0};
int status;
-
+
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
goto xdr_error;
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
static int decode_link(struct xdr_stream *xdr, struct nfs4_change_info *cinfo)
{
int status;
-
+
status = decode_op_hdr(xdr, OP_LINK);
if (status)
return status;
/* This is too sick! */
static int decode_space_limit(struct xdr_stream *xdr, u64 *maxsize)
{
- __be32 *p;
+ __be32 *p;
uint32_t limit_type, nblocks, blocksize;
READ_BUF(12);
READ32(limit_type);
switch (limit_type) {
- case 1:
- READ64(*maxsize);
- break;
- case 2:
- READ32(nblocks);
- READ32(blocksize);
- *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
+ case 1:
+ READ64(*maxsize);
+ break;
+ case 2:
+ READ32(nblocks);
+ READ32(blocksize);
+ *maxsize = (uint64_t)nblocks * (uint64_t)blocksize;
}
return 0;
}
static int decode_delegation(struct xdr_stream *xdr, struct nfs_openres *res)
{
- __be32 *p;
- uint32_t delegation_type;
+ __be32 *p;
+ uint32_t delegation_type;
READ_BUF(4);
READ32(delegation_type);
READ_BUF(NFS4_STATEID_SIZE+4);
COPYMEM(res->delegation.data, NFS4_STATEID_SIZE);
READ32(res->do_recall);
+
switch (delegation_type) {
- case NFS4_OPEN_DELEGATE_READ:
- res->delegation_type = FMODE_READ;
- break;
- case NFS4_OPEN_DELEGATE_WRITE:
- res->delegation_type = FMODE_WRITE|FMODE_READ;
- if (decode_space_limit(xdr, &res->maxsize) < 0)
+ case NFS4_OPEN_DELEGATE_READ:
+ res->delegation_type = FMODE_READ;
+ break;
+ case NFS4_OPEN_DELEGATE_WRITE:
+ res->delegation_type = FMODE_WRITE|FMODE_READ;
+ if (decode_space_limit(xdr, &res->maxsize) < 0)
return -EIO;
}
return decode_ace(xdr, NULL, res->server->nfs_client);
static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
{
- __be32 *p;
+ __be32 *p;
uint32_t savewords, bmlen, i;
- int status;
+ int status;
- status = decode_op_hdr(xdr, OP_OPEN);
+ status = decode_op_hdr(xdr, OP_OPEN);
if (status != -EIO)
nfs_increment_open_seqid(status, res->seqid);
- if (status)
- return status;
- READ_BUF(NFS4_STATEID_SIZE);
- COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
+ if (status)
+ return status;
+ READ_BUF(NFS4_STATEID_SIZE);
+ COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
- decode_change_info(xdr, &res->cinfo);
+ decode_change_info(xdr, &res->cinfo);
- READ_BUF(8);
- READ32(res->rflags);
- READ32(bmlen);
- if (bmlen > 10)
- goto xdr_error;
+ READ_BUF(8);
+ READ32(res->rflags);
+ READ32(bmlen);
+ if (bmlen > 10)
+ goto xdr_error;
- READ_BUF(bmlen << 2);
+ READ_BUF(bmlen << 2);
savewords = min_t(uint32_t, bmlen, NFS4_BITMAP_SIZE);
for (i = 0; i < savewords; ++i)
READ32(res->attrset[i]);
static int decode_open_confirm(struct xdr_stream *xdr, struct nfs_open_confirmres *res)
{
- __be32 *p;
+ __be32 *p;
int status;
- status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
+ status = decode_op_hdr(xdr, OP_OPEN_CONFIRM);
if (status != -EIO)
nfs_increment_open_seqid(status, res->seqid);
- if (status)
- return status;
- READ_BUF(NFS4_STATEID_SIZE);
- COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
- return 0;
+ if (status)
+ return status;
+ READ_BUF(NFS4_STATEID_SIZE);
+ COPYMEM(res->stateid.data, NFS4_STATEID_SIZE);
+ return 0;
}
static int decode_open_downgrade(struct xdr_stream *xdr, struct nfs_closeres *res)
dprintk("NFS: readdir reply truncated!\n");
entry[1] = 1;
}
-out:
+out:
kunmap_atomic(kaddr, KM_USER0);
return 0;
short_pkt:
uint32_t bmlen;
int status;
-
status = decode_op_hdr(xdr, OP_SETATTR);
if (status)
return status;
READ32(opnum);
if (opnum != OP_SETCLIENTID) {
dprintk("nfs: decode_setclientid: Server returned operation"
- " %d\n", opnum);
+ " %d\n", opnum);
return -EIO;
}
READ32(nfserr);
return decode_op_hdr(xdr, OP_DELEGRETURN);
}
+/*
+ * END OF "GENERIC" DECODE ROUTINES.
+ */
+
/*
* Decode OPEN_DOWNGRADE response
*/
static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
{
- struct xdr_stream xdr;
- struct compound_hdr hdr;
- int status;
-
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
- if (status)
- goto out;
- status = decode_putfh(&xdr);
- if (status)
- goto out;
- status = decode_open_downgrade(&xdr, res);
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status)
+ goto out;
+ status = decode_open_downgrade(&xdr, res);
if (status != 0)
goto out;
decode_getfattr(&xdr, res->fattr, res->server);
out:
- return status;
+ return status;
}
-/*
- * END OF "GENERIC" DECODE ROUTINES.
- */
-
/*
* Decode ACCESS response
*/
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
-
+
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
goto out;
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
-
+
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
goto out;
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
-
+
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
goto out;
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
-
+
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
goto out;
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
-
+
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
goto out;
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
-
+
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
goto out;
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
-
+
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
goto out;
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
-
+
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
if (status)
status = decode_getfattr(&xdr, res->fattr, res->server);
out:
return status;
-
}
/*
static int
nfs4_xdr_enc_setacl(struct rpc_rqst *req, __be32 *p, struct nfs_setaclargs *args)
{
- struct xdr_stream xdr;
- struct compound_hdr hdr = {
- .nops = 2,
- };
- int status;
-
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_compound_hdr(&xdr, &hdr);
- status = encode_putfh(&xdr, args->fh);
- if (status)
- goto out;
- status = encode_setacl(&xdr, args);
-out:
- return status;
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .nops = 0,
+ };
+ int status;
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, &hdr);
+ encode_putfh(&xdr, args->fh, &hdr);
+ status = encode_setacl(&xdr, args, &hdr);
+ encode_nops(&hdr);
+ return status;
}
+
/*
* Decode SETACL response
*/
*/
static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, __be32 *p, struct nfs_closeres *res)
{
- struct xdr_stream xdr;
- struct compound_hdr hdr;
- int status;
-
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
- if (status)
- goto out;
- status = decode_putfh(&xdr);
- if (status)
- goto out;
- status = decode_close(&xdr, res);
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status)
+ goto out;
+ status = decode_close(&xdr, res);
if (status != 0)
goto out;
/*
*/
decode_getfattr(&xdr, res->fattr, res->server);
out:
- return status;
+ return status;
}
/*
*/
static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
{
- struct xdr_stream xdr;
- struct compound_hdr hdr;
- int status;
-
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
- if (status)
- goto out;
- status = decode_putfh(&xdr);
- if (status)
- goto out;
- status = decode_savefh(&xdr);
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status)
+ goto out;
+ status = decode_savefh(&xdr);
+ if (status)
+ goto out;
+ status = decode_open(&xdr, res);
if (status)
goto out;
- status = decode_open(&xdr, res);
- if (status)
- goto out;
if (decode_getfh(&xdr, &res->fh) != 0)
goto out;
if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
goto out;
decode_getfattr(&xdr, res->dir_attr, res->server);
out:
- return status;
+ return status;
}
/*
*/
static int nfs4_xdr_dec_open_confirm(struct rpc_rqst *rqstp, __be32 *p, struct nfs_open_confirmres *res)
{
- struct xdr_stream xdr;
- struct compound_hdr hdr;
- int status;
-
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
- if (status)
- goto out;
- status = decode_putfh(&xdr);
- if (status)
- goto out;
- status = decode_open_confirm(&xdr, res);
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status)
+ goto out;
+ status = decode_open_confirm(&xdr, res);
out:
- return status;
+ return status;
}
/*
*/
static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_openres *res)
{
- struct xdr_stream xdr;
- struct compound_hdr hdr;
- int status;
-
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
- if (status)
- goto out;
- status = decode_putfh(&xdr);
- if (status)
- goto out;
- status = decode_open(&xdr, res);
- if (status)
- goto out;
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status)
+ goto out;
+ status = decode_open(&xdr, res);
+ if (status)
+ goto out;
decode_getfattr(&xdr, res->f_attr, res->server);
out:
- return status;
+ return status;
}
/*
*/
static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp, __be32 *p, struct nfs_setattrres *res)
{
- struct xdr_stream xdr;
- struct compound_hdr hdr;
- int status;
-
- xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
- status = decode_compound_hdr(&xdr, &hdr);
- if (status)
- goto out;
- status = decode_putfh(&xdr);
- if (status)
- goto out;
- status = decode_setattr(&xdr, res);
- if (status)
- goto out;
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status)
+ goto out;
+ status = decode_setattr(&xdr, res);
+ if (status)
+ goto out;
status = decode_getfattr(&xdr, res->fattr, res->server);
if (status == NFS4ERR_DELAY)
status = 0;
out:
- return status;
+ return status;
}
/*
status = decode_putfh(&xdr);
if (!status)
status = decode_fsinfo(&xdr, fsinfo);
- if (!status)
- status = nfs4_stat_to_errno(hdr.status);
return status;
}
status = decode_compound_hdr(&xdr, &hdr);
if (!status)
status = decode_setclientid(&xdr, clp);
- if (!status)
- status = nfs4_stat_to_errno(hdr.status);
return status;
}
status = decode_putrootfh(&xdr);
if (!status)
status = decode_fsinfo(&xdr, fsinfo);
- if (!status)
- status = nfs4_stat_to_errno(hdr.status);
return status;
}
.p_replen = NFS4_##restype##_sz, \
.p_statidx = NFSPROC4_CLNT_##proc, \
.p_name = #proc, \
- }
+}
struct rpc_procinfo nfs4_procedures[] = {
PROC(READ, enc_read, dec_read),
#include <net/ipconfig.h>
#include <linux/parser.h>
+#include "internal.h"
+
/* Define this to allow debugging output */
#undef NFSROOT_DEBUG
#define NFSDBG_FACILITY NFSDBG_ROOT
static __be32 servaddr __initdata = 0;
/* Name of directory to mount */
-static char nfs_path[NFS_MAXPATHLEN] __initdata = { 0, };
+static char nfs_export_path[NFS_MAXPATHLEN] __initdata = { 0, };
/* NFS-related data */
static struct nfs_mount_data nfs_data __initdata = { 0, };/* NFS mount info */
printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
return -1;
}
- sprintf(nfs_path, buf, cp);
+ sprintf(nfs_export_path, buf, cp);
return 1;
}
static void __init root_nfs_print(void)
{
printk(KERN_NOTICE "Root-NFS: Mounting %s on server %s as root\n",
- nfs_path, nfs_data.hostname);
+ nfs_export_path, nfs_data.hostname);
printk(KERN_NOTICE "Root-NFS: rsize = %d, wsize = %d, timeo = %d, retrans = %d\n",
nfs_data.rsize, nfs_data.wsize, nfs_data.timeo, nfs_data.retrans);
printk(KERN_NOTICE "Root-NFS: acreg (min,max) = (%d,%d), acdir (min,max) = (%d,%d)\n",
{
struct nfs_fh fh;
struct sockaddr_in sin;
+ struct nfs_mount_request request = {
+ .sap = (struct sockaddr *)&sin,
+ .salen = sizeof(sin),
+ .dirpath = nfs_export_path,
+ .version = (nfs_data.flags & NFS_MOUNT_VER3) ?
+ NFS_MNT3_VERSION : NFS_MNT_VERSION,
+ .protocol = (nfs_data.flags & NFS_MOUNT_TCP) ?
+ XPRT_TRANSPORT_TCP : XPRT_TRANSPORT_UDP,
+ .fh = &fh,
+ };
int status;
- int protocol = (nfs_data.flags & NFS_MOUNT_TCP) ?
- XPRT_TRANSPORT_TCP : XPRT_TRANSPORT_UDP;
- int version = (nfs_data.flags & NFS_MOUNT_VER3) ?
- NFS_MNT3_VERSION : NFS_MNT_VERSION;
set_sockaddr(&sin, servaddr, htons(mount_port));
- status = nfs_mount((struct sockaddr *) &sin, sizeof(sin), NULL,
- nfs_path, version, protocol, &fh);
+ status = nfs_mount(&request);
if (status < 0)
printk(KERN_ERR "Root-NFS: Server returned error %d "
- "while mounting %s\n", status, nfs_path);
+ "while mounting %s\n", status, nfs_export_path);
else {
nfs_data.root.size = fh.size;
memcpy(nfs_data.root.data, fh.data, fh.size);
unsigned int len;
int error;
- error = nfs_wb_page(inode, page);
- if (error)
- goto out_unlock;
- if (PageUptodate(page))
- goto out_unlock;
-
len = nfs_page_length(page);
if (len == 0)
return nfs_return_empty_page(page);
Opt_acl, Opt_noacl,
Opt_rdirplus, Opt_nordirplus,
Opt_sharecache, Opt_nosharecache,
+ Opt_resvport, Opt_noresvport,
/* Mount options that take integer arguments */
Opt_port,
{ Opt_nordirplus, "nordirplus" },
{ Opt_sharecache, "sharecache" },
{ Opt_nosharecache, "nosharecache" },
+ { Opt_resvport, "resvport" },
+ { Opt_noresvport, "noresvport" },
{ Opt_port, "port=%u" },
{ Opt_rsize, "rsize=%u" },
{ NFS_MOUNT_NONLM, ",nolock", "" },
{ NFS_MOUNT_NOACL, ",noacl", "" },
{ NFS_MOUNT_NORDIRPLUS, ",nordirplus", "" },
- { NFS_MOUNT_UNSHARED, ",nosharecache", ""},
+ { NFS_MOUNT_UNSHARED, ",nosharecache", "" },
+ { NFS_MOUNT_NORESVPORT, ",noresvport", "" },
{ 0, NULL, NULL }
};
const struct proc_nfs_info *nfs_infop;
case Opt_nosharecache:
mnt->flags |= NFS_MOUNT_UNSHARED;
break;
+ case Opt_resvport:
+ mnt->flags &= ~NFS_MOUNT_NORESVPORT;
+ break;
+ case Opt_noresvport:
+ mnt->flags |= NFS_MOUNT_NORESVPORT;
+ break;
/*
* options that take numeric values
static int nfs_try_mount(struct nfs_parsed_mount_data *args,
struct nfs_fh *root_fh)
{
- struct sockaddr *sap = (struct sockaddr *)&args->mount_server.address;
- char *hostname;
+ struct nfs_mount_request request = {
+ .sap = (struct sockaddr *)
+ &args->mount_server.address,
+ .dirpath = args->nfs_server.export_path,
+ .protocol = args->mount_server.protocol,
+ .fh = root_fh,
+ .noresvport = args->flags & NFS_MOUNT_NORESVPORT,
+ };
int status;
if (args->mount_server.version == 0) {
else
args->mount_server.version = NFS_MNT_VERSION;
}
+ request.version = args->mount_server.version;
if (args->mount_server.hostname)
- hostname = args->mount_server.hostname;
+ request.hostname = args->mount_server.hostname;
else
- hostname = args->nfs_server.hostname;
+ request.hostname = args->nfs_server.hostname;
/*
* Construct the mount server's address.
*/
if (args->mount_server.address.ss_family == AF_UNSPEC) {
- memcpy(sap, &args->nfs_server.address,
+ memcpy(request.sap, &args->nfs_server.address,
args->nfs_server.addrlen);
args->mount_server.addrlen = args->nfs_server.addrlen;
}
+ request.salen = args->mount_server.addrlen;
/*
* autobind will be used if mount_server.port == 0
*/
- nfs_set_port(sap, args->mount_server.port);
+ nfs_set_port(request.sap, args->mount_server.port);
/*
* Now ask the mount server to map our export path
* to a file handle.
*/
- status = nfs_mount(sap,
- args->mount_server.addrlen,
- hostname,
- args->nfs_server.export_path,
- args->mount_server.version,
- args->mount_server.protocol,
- root_fh);
+ status = nfs_mount(&request);
if (status == 0)
return 0;
dfprintk(MOUNT, "NFS: unable to mount server %s, error %d\n",
- hostname, status);
+ request.hostname, status);
return status;
}
{
struct nfs_server *server = NFS_SB(sb);
- nfs_return_all_delegations(sb);
+ nfs_super_return_all_delegations(sb);
kill_anon_super(sb);
nfs4_renewd_prepare_shutdown(server);
MODULE_LICENSE("GPL");
-EXPORT_SYMBOL(nfsacl_encode);
-EXPORT_SYMBOL(nfsacl_decode);
+EXPORT_SYMBOL_GPL(nfsacl_encode);
+EXPORT_SYMBOL_GPL(nfsacl_decode);
struct nfsacl_encode_desc {
struct xdr_array2_desc desc;
.nrvers = ARRAY_SIZE(nfs_cb_version),
.version = nfs_cb_version,
.stats = &cb_stats,
+ .pipe_dir_name = "/nfsd4_cb",
};
/* Reference counting, callback cleanup, etc., all look racy as heck.
.program = &cb_program,
.prognumber = cb->cb_prog,
.version = nfs_cb_version[1]->number,
- .authflavor = RPC_AUTH_UNIX, /* XXX: need AUTH_GSS... */
+ .authflavor = clp->cl_flavor,
.flags = (RPC_CLNT_CREATE_NOPING | RPC_CLNT_CREATE_QUIET),
+ .client_name = clp->cl_principal,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL],
struct rpc_clnt *client;
int status;
+ if (!clp->cl_principal && (clp->cl_flavor >= RPC_AUTH_GSS_KRB5)) {
+ status = nfserr_cb_path_down;
+ goto out_err;
+ }
+
/* Initialize address */
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
#include <linux/mutex.h>
#include <linux/lockd/bind.h>
#include <linux/module.h>
+#include <linux/sunrpc/svcauth_gss.h>
#define NFSDDBG_FACILITY NFSDDBG_PROC
shutdown_callback_client(clp);
if (clp->cl_cred.cr_group_info)
put_group_info(clp->cl_cred.cr_group_info);
+ kfree(clp->cl_principal);
kfree(clp->cl_name.data);
kfree(clp);
}
unsigned int strhashval;
struct nfs4_client *conf, *unconf, *new;
__be32 status;
+ char *princ;
char dname[HEXDIR_LEN];
if (!check_name(clname))
}
copy_verf(new, &clverifier);
new->cl_addr = sin->sin_addr.s_addr;
+ new->cl_flavor = rqstp->rq_flavor;
+ princ = svc_gss_principal(rqstp);
+ if (princ) {
+ new->cl_principal = kstrdup(princ, GFP_KERNEL);
+ if (new->cl_principal == NULL) {
+ free_client(new);
+ goto out;
+ }
+ }
copy_cred(&new->cl_cred, &rqstp->rq_cred);
gen_confirm(new);
gen_callback(new, setclid);
((long)(a) - (long)(b) >= 0))
#define time_before_eq(a,b) time_after_eq(b,a)
+/*
+ * Calculate whether a is in the range of [b, c].
+ */
#define time_in_range(a,b,c) \
(time_after_eq(a,b) && \
time_before_eq(a,c))
+/*
+ * Calculate whether a is in the range of [b, c).
+ */
+#define time_in_range_open(a,b,c) \
+ (time_after_eq(a,b) && \
+ time_before(a,c))
+
/* Same as above, but does so with platform independent 64bit types.
* These must be used when utilizing jiffies_64 (i.e. return value of
* get_jiffies_64() */
size_t addrlen;
unsigned short protocol;
u32 nfs_version;
+ int noresvport;
};
/*
unsigned short h_proto; /* transport proto */
unsigned short h_reclaiming : 1,
h_server : 1, /* server side, not client side */
+ h_noresvport : 1,
h_inuse : 1;
wait_queue_head_t h_gracewait; /* wait while reclaiming */
struct rw_semaphore h_rwsem; /* Reboot recovery lock */
const size_t salen,
const unsigned short protocol,
const u32 version,
- const char *hostname);
+ const char *hostname,
+ int noresvport);
struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
const char *hostname,
const size_t hostname_len);
struct rpc_cred *cred;
struct nfs4_state *state;
fl_owner_t lockowner;
- int mode;
+ fmode_t mode;
unsigned long flags;
#define NFS_CONTEXT_ERROR_WRITE (0)
*
* We need to revalidate the cached attrs for this inode if
*
- * jiffies - read_cache_jiffies > attrtimeo
+ * jiffies - read_cache_jiffies >= attrtimeo
+ *
+ * Please note the comparison is greater than or equal
+ * so that zero timeout values can be specified.
*/
unsigned long read_cache_jiffies;
unsigned long attrtimeo;
/* NFSv4 state */
struct list_head open_states;
struct nfs_delegation *delegation;
- int delegation_state;
+ fmode_t delegation_state;
struct rw_semaphore rwsem;
#endif /* CONFIG_NFS_V4*/
struct inode vfs_inode;
extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
extern void put_nfs_open_context(struct nfs_open_context *ctx);
-extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode);
+extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode);
extern u64 nfs_compat_user_ino64(u64 fileid);
extern void nfs_fattr_init(struct nfs_fattr *fattr);
}
#endif /* CONFIG_NFS_V3_ACL */
-/*
- * linux/fs/mount_clnt.c
- */
-extern int nfs_mount(struct sockaddr *, size_t, char *, char *,
- int, int, struct nfs_fh *);
-
/*
* inline functions
*/
struct rb_root cl_openowner_id;
struct rb_root cl_lockowner_id;
- /*
- * The following rwsem ensures exclusive access to the server
- * while we recover the state following a lease expiration.
- */
- struct rw_semaphore cl_sem;
-
struct list_head cl_delegations;
struct rb_root cl_state_owners;
spinlock_t cl_lock;
char context[NFS_MAX_CONTEXT_LEN + 1]; /* 6 */
};
-/* bits in the flags field */
+/* bits in the flags field visible to user space */
#define NFS_MOUNT_SOFT 0x0001 /* 1 */
#define NFS_MOUNT_INTR 0x0002 /* 1 */ /* now unused, but ABI */
/* The following are for internal use only */
#define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000
#define NFS_MOUNT_LOOKUP_CACHE_NONE 0x20000
+#define NFS_MOUNT_NORESVPORT 0x40000
#endif
const struct nfs_fh * fh;
struct nfs_seqid * seqid;
int open_flags;
+ fmode_t fmode;
__u64 clientid;
__u64 id;
union {
struct iattr * attrs; /* UNCHECKED, GUARDED */
nfs4_verifier verifier; /* EXCLUSIVE */
nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
- int delegation_type; /* CLAIM_PREVIOUS */
+ fmode_t delegation_type; /* CLAIM_PREVIOUS */
} u;
const struct qstr * name;
const struct nfs_server *server; /* Needed for ID mapping */
struct nfs_fattr * dir_attr;
struct nfs_seqid * seqid;
const struct nfs_server *server;
- int delegation_type;
+ fmode_t delegation_type;
nfs4_stateid delegation;
__u32 do_recall;
__u64 maxsize;
struct nfs_fh * fh;
nfs4_stateid * stateid;
struct nfs_seqid * seqid;
- int open_flags;
+ fmode_t fmode;
const u32 * bitmask;
};
nfs4_verifier cl_verifier; /* generated by client */
time_t cl_time; /* time of last lease renewal */
__be32 cl_addr; /* client ipaddress */
+ u32 cl_flavor; /* setclientid pseudoflavor */
+ char *cl_principal; /* setclientid principal name */
struct svc_cred cl_cred; /* setclientid principal */
clientid_t cl_clientid; /* generated by server */
nfs4_verifier cl_confirm; /* generated by server */
struct rpc_timeout cl_timeout_default;
struct rpc_program * cl_program;
char cl_inline_name[32];
+ char *cl_principal; /* target to authenticate to */
};
/*
u32 version;
rpc_authflavor_t authflavor;
unsigned long flags;
+ char *client_name;
};
/* Values for "flags" field */
ssize_t (*upcall)(struct file *, struct rpc_pipe_msg *, char __user *, size_t);
ssize_t (*downcall)(struct file *, const char __user *, size_t);
void (*release_pipe)(struct inode *);
+ int (*open_pipe)(struct inode *);
void (*destroy_msg)(struct rpc_pipe_msg *);
};
void gss_svc_shutdown(void);
int svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name);
u32 svcauth_gss_flavor(struct auth_domain *dom);
+char *svc_gss_principal(struct svc_rqst *);
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_SVCAUTH_GSS_H */
*/
typedef int (*kxdrproc_t)(void *rqstp, __be32 *data, void *obj);
-/*
- * We're still requiring the BKL in the xdr code until it's been
- * more carefully audited, at which point this wrapper will become
- * unnecessary.
- */
-static inline int rpc_call_xdrproc(kxdrproc_t xdrproc, void *rqstp, __be32 *data, void *obj)
-{
- int ret;
-
- lock_kernel();
- ret = xdrproc(rqstp, data, obj);
- unlock_kernel();
- return ret;
-}
-
/*
* Basic structure for transmission/reception of a client XDR message.
* Features a header (for a linear buffer containing RPC headers
struct list_head rq_list;
__u32 * rq_buffer; /* XDR encode buffer */
- size_t rq_bufsize,
- rq_callsize,
+ size_t rq_callsize,
rq_rcvsize;
struct xdr_buf rq_private_buf; /* The receive buffer
list_for_each_entry_safe(cred, next, &cred_unused, cr_lru) {
/* Enforce a 60 second garbage collection moratorium */
- if (time_in_range(cred->cr_expire, expired, jiffies) &&
+ if (time_in_range_open(cred->cr_expire, expired, jiffies) &&
test_bit(RPCAUTH_CRED_HASHED, &cred->cr_flags) != 0)
continue;
if (cred->cr_ops->crwrap_req)
return cred->cr_ops->crwrap_req(task, encode, rqstp, data, obj);
/* By default, we encode the arguments normally. */
- return rpc_call_xdrproc(encode, rqstp, data, obj);
+ return encode(rqstp, data, obj);
}
int
return cred->cr_ops->crunwrap_resp(task, decode, rqstp,
data, obj);
/* By default, we decode the arguments normally. */
- return rpc_call_xdrproc(decode, rqstp, data, obj);
+ return decode(rqstp, data, obj);
}
int
struct gss_api_mech *mech;
enum rpc_gss_svc service;
struct rpc_clnt *client;
- struct dentry *dentry;
+ /*
+ * There are two upcall pipes; dentry[1], named "gssd", is used
+ * for the new text-based upcall; dentry[0] is named after the
+ * mechanism (for example, "krb5") and exists for
+ * backwards-compatibility with older gssd's.
+ */
+ struct dentry *dentry[2];
};
+/* pipe_version >= 0 if and only if someone has a pipe open. */
+static int pipe_version = -1;
+static atomic_t pipe_users = ATOMIC_INIT(0);
+static DEFINE_SPINLOCK(pipe_version_lock);
+static struct rpc_wait_queue pipe_version_rpc_waitqueue;
+static DECLARE_WAIT_QUEUE_HEAD(pipe_version_waitqueue);
+
static void gss_free_ctx(struct gss_cl_ctx *);
-static struct rpc_pipe_ops gss_upcall_ops;
+static struct rpc_pipe_ops gss_upcall_ops_v0;
+static struct rpc_pipe_ops gss_upcall_ops_v1;
static inline struct gss_cl_ctx *
gss_get_ctx(struct gss_cl_ctx *ctx)
return p;
}
+#define UPCALL_BUF_LEN 128
struct gss_upcall_msg {
atomic_t count;
struct rpc_pipe_msg msg;
struct list_head list;
struct gss_auth *auth;
+ struct rpc_inode *inode;
struct rpc_wait_queue rpc_waitqueue;
wait_queue_head_t waitqueue;
struct gss_cl_ctx *ctx;
+ char databuf[UPCALL_BUF_LEN];
};
+static int get_pipe_version(void)
+{
+ int ret;
+
+ spin_lock(&pipe_version_lock);
+ if (pipe_version >= 0) {
+ atomic_inc(&pipe_users);
+ ret = pipe_version;
+ } else
+ ret = -EAGAIN;
+ spin_unlock(&pipe_version_lock);
+ return ret;
+}
+
+static void put_pipe_version(void)
+{
+ if (atomic_dec_and_lock(&pipe_users, &pipe_version_lock)) {
+ pipe_version = -1;
+ spin_unlock(&pipe_version_lock);
+ }
+}
+
static void
gss_release_msg(struct gss_upcall_msg *gss_msg)
{
if (!atomic_dec_and_test(&gss_msg->count))
return;
+ put_pipe_version();
BUG_ON(!list_empty(&gss_msg->list));
if (gss_msg->ctx != NULL)
gss_put_ctx(gss_msg->ctx);
static inline struct gss_upcall_msg *
gss_add_msg(struct gss_auth *gss_auth, struct gss_upcall_msg *gss_msg)
{
- struct inode *inode = gss_auth->dentry->d_inode;
- struct rpc_inode *rpci = RPC_I(inode);
+ struct rpc_inode *rpci = gss_msg->inode;
+ struct inode *inode = &rpci->vfs_inode;
struct gss_upcall_msg *old;
spin_lock(&inode->i_lock);
static void
gss_unhash_msg(struct gss_upcall_msg *gss_msg)
{
- struct gss_auth *gss_auth = gss_msg->auth;
- struct inode *inode = gss_auth->dentry->d_inode;
+ struct inode *inode = &gss_msg->inode->vfs_inode;
if (list_empty(&gss_msg->list))
return;
struct gss_cred *gss_cred = container_of(task->tk_msg.rpc_cred,
struct gss_cred, gc_base);
struct gss_upcall_msg *gss_msg = gss_cred->gc_upcall;
- struct inode *inode = gss_msg->auth->dentry->d_inode;
+ struct inode *inode = &gss_msg->inode->vfs_inode;
spin_lock(&inode->i_lock);
if (gss_msg->ctx)
gss_release_msg(gss_msg);
}
+static void gss_encode_v0_msg(struct gss_upcall_msg *gss_msg)
+{
+ gss_msg->msg.data = &gss_msg->uid;
+ gss_msg->msg.len = sizeof(gss_msg->uid);
+}
+
+static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
+ struct rpc_clnt *clnt, int machine_cred)
+{
+ char *p = gss_msg->databuf;
+ int len = 0;
+
+ gss_msg->msg.len = sprintf(gss_msg->databuf, "mech=%s uid=%d ",
+ gss_msg->auth->mech->gm_name,
+ gss_msg->uid);
+ p += gss_msg->msg.len;
+ if (clnt->cl_principal) {
+ len = sprintf(p, "target=%s ", clnt->cl_principal);
+ p += len;
+ gss_msg->msg.len += len;
+ }
+ if (machine_cred) {
+ len = sprintf(p, "service=* ");
+ p += len;
+ gss_msg->msg.len += len;
+ } else if (!strcmp(clnt->cl_program->name, "nfs4_cb")) {
+ len = sprintf(p, "service=nfs ");
+ p += len;
+ gss_msg->msg.len += len;
+ }
+ len = sprintf(p, "\n");
+ gss_msg->msg.len += len;
+
+ gss_msg->msg.data = gss_msg->databuf;
+ BUG_ON(gss_msg->msg.len > UPCALL_BUF_LEN);
+}
+
+static void gss_encode_msg(struct gss_upcall_msg *gss_msg,
+ struct rpc_clnt *clnt, int machine_cred)
+{
+ if (pipe_version == 0)
+ gss_encode_v0_msg(gss_msg);
+ else /* pipe_version == 1 */
+ gss_encode_v1_msg(gss_msg, clnt, machine_cred);
+}
+
static inline struct gss_upcall_msg *
-gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid)
+gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid, struct rpc_clnt *clnt,
+ int machine_cred)
{
struct gss_upcall_msg *gss_msg;
+ int vers;
gss_msg = kzalloc(sizeof(*gss_msg), GFP_NOFS);
- if (gss_msg != NULL) {
- INIT_LIST_HEAD(&gss_msg->list);
- rpc_init_wait_queue(&gss_msg->rpc_waitqueue, "RPCSEC_GSS upcall waitq");
- init_waitqueue_head(&gss_msg->waitqueue);
- atomic_set(&gss_msg->count, 1);
- gss_msg->msg.data = &gss_msg->uid;
- gss_msg->msg.len = sizeof(gss_msg->uid);
- gss_msg->uid = uid;
- gss_msg->auth = gss_auth;
+ if (gss_msg == NULL)
+ return ERR_PTR(-ENOMEM);
+ vers = get_pipe_version();
+ if (vers < 0) {
+ kfree(gss_msg);
+ return ERR_PTR(vers);
}
+ gss_msg->inode = RPC_I(gss_auth->dentry[vers]->d_inode);
+ INIT_LIST_HEAD(&gss_msg->list);
+ rpc_init_wait_queue(&gss_msg->rpc_waitqueue, "RPCSEC_GSS upcall waitq");
+ init_waitqueue_head(&gss_msg->waitqueue);
+ atomic_set(&gss_msg->count, 1);
+ gss_msg->uid = uid;
+ gss_msg->auth = gss_auth;
+ gss_encode_msg(gss_msg, clnt, machine_cred);
return gss_msg;
}
struct gss_upcall_msg *gss_new, *gss_msg;
uid_t uid = cred->cr_uid;
- /* Special case: rpc.gssd assumes that uid == 0 implies machine creds */
- if (gss_cred->gc_machine_cred != 0)
- uid = 0;
-
- gss_new = gss_alloc_msg(gss_auth, uid);
- if (gss_new == NULL)
- return ERR_PTR(-ENOMEM);
+ gss_new = gss_alloc_msg(gss_auth, uid, clnt, gss_cred->gc_machine_cred);
+ if (IS_ERR(gss_new))
+ return gss_new;
gss_msg = gss_add_msg(gss_auth, gss_new);
if (gss_msg == gss_new) {
- int res = rpc_queue_upcall(gss_auth->dentry->d_inode, &gss_new->msg);
+ struct inode *inode = &gss_new->inode->vfs_inode;
+ int res = rpc_queue_upcall(inode, &gss_new->msg);
if (res) {
gss_unhash_msg(gss_new);
gss_msg = ERR_PTR(res);
return gss_msg;
}
+static void warn_gssd(void)
+{
+ static unsigned long ratelimit;
+ unsigned long now = jiffies;
+
+ if (time_after(now, ratelimit)) {
+ printk(KERN_WARNING "RPC: AUTH_GSS upcall timed out.\n"
+ "Please check user daemon is running.\n");
+ ratelimit = now + 15*HZ;
+ }
+}
+
static inline int
gss_refresh_upcall(struct rpc_task *task)
{
struct gss_cred *gss_cred = container_of(cred,
struct gss_cred, gc_base);
struct gss_upcall_msg *gss_msg;
- struct inode *inode = gss_auth->dentry->d_inode;
+ struct inode *inode;
int err = 0;
dprintk("RPC: %5u gss_refresh_upcall for uid %u\n", task->tk_pid,
cred->cr_uid);
gss_msg = gss_setup_upcall(task->tk_client, gss_auth, cred);
+ if (IS_ERR(gss_msg) == -EAGAIN) {
+ /* XXX: warning on the first, under the assumption we
+ * shouldn't normally hit this case on a refresh. */
+ warn_gssd();
+ task->tk_timeout = 15*HZ;
+ rpc_sleep_on(&pipe_version_rpc_waitqueue, task, NULL);
+ return 0;
+ }
if (IS_ERR(gss_msg)) {
err = PTR_ERR(gss_msg);
goto out;
}
+ inode = &gss_msg->inode->vfs_inode;
spin_lock(&inode->i_lock);
if (gss_cred->gc_upcall != NULL)
rpc_sleep_on(&gss_cred->gc_upcall->rpc_waitqueue, task, NULL);
static inline int
gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred)
{
- struct inode *inode = gss_auth->dentry->d_inode;
+ struct inode *inode;
struct rpc_cred *cred = &gss_cred->gc_base;
struct gss_upcall_msg *gss_msg;
DEFINE_WAIT(wait);
int err = 0;
dprintk("RPC: gss_upcall for uid %u\n", cred->cr_uid);
+retry:
gss_msg = gss_setup_upcall(gss_auth->client, gss_auth, cred);
+ if (PTR_ERR(gss_msg) == -EAGAIN) {
+ err = wait_event_interruptible_timeout(pipe_version_waitqueue,
+ pipe_version >= 0, 15*HZ);
+ if (err)
+ goto out;
+ if (pipe_version < 0)
+ warn_gssd();
+ goto retry;
+ }
if (IS_ERR(gss_msg)) {
err = PTR_ERR(gss_msg);
goto out;
}
+ inode = &gss_msg->inode->vfs_inode;
for (;;) {
prepare_to_wait(&gss_msg->waitqueue, &wait, TASK_INTERRUPTIBLE);
spin_lock(&inode->i_lock);
return err;
}
+static int gss_pipe_open(struct inode *inode, int new_version)
+{
+ int ret = 0;
+
+ spin_lock(&pipe_version_lock);
+ if (pipe_version < 0) {
+ /* First open of any gss pipe determines the version: */
+ pipe_version = new_version;
+ rpc_wake_up(&pipe_version_rpc_waitqueue);
+ wake_up(&pipe_version_waitqueue);
+ } else if (pipe_version != new_version) {
+ /* Trying to open a pipe of a different version */
+ ret = -EBUSY;
+ goto out;
+ }
+ atomic_inc(&pipe_users);
+out:
+ spin_unlock(&pipe_version_lock);
+ return ret;
+
+}
+
+static int gss_pipe_open_v0(struct inode *inode)
+{
+ return gss_pipe_open(inode, 0);
+}
+
+static int gss_pipe_open_v1(struct inode *inode)
+{
+ return gss_pipe_open(inode, 1);
+}
+
static void
gss_pipe_release(struct inode *inode)
{
spin_lock(&inode->i_lock);
}
spin_unlock(&inode->i_lock);
+
+ put_pipe_version();
}
static void
gss_pipe_destroy_msg(struct rpc_pipe_msg *msg)
{
struct gss_upcall_msg *gss_msg = container_of(msg, struct gss_upcall_msg, msg);
- static unsigned long ratelimit;
if (msg->errno < 0) {
dprintk("RPC: gss_pipe_destroy_msg releasing msg %p\n",
gss_msg);
atomic_inc(&gss_msg->count);
gss_unhash_msg(gss_msg);
- if (msg->errno == -ETIMEDOUT) {
- unsigned long now = jiffies;
- if (time_after(now, ratelimit)) {
- printk(KERN_WARNING "RPC: AUTH_GSS upcall timed out.\n"
- "Please check user daemon is running!\n");
- ratelimit = now + 15*HZ;
- }
- }
+ if (msg->errno == -ETIMEDOUT)
+ warn_gssd();
gss_release_msg(gss_msg);
}
}
atomic_set(&auth->au_count, 1);
kref_init(&gss_auth->kref);
- gss_auth->dentry = rpc_mkpipe(clnt->cl_dentry, gss_auth->mech->gm_name,
- clnt, &gss_upcall_ops, RPC_PIPE_WAIT_FOR_OPEN);
- if (IS_ERR(gss_auth->dentry)) {
- err = PTR_ERR(gss_auth->dentry);
+ /*
+ * Note: if we created the old pipe first, then someone who
+ * examined the directory at the right moment might conclude
+ * that we supported only the old pipe. So we instead create
+ * the new pipe first.
+ */
+ gss_auth->dentry[1] = rpc_mkpipe(clnt->cl_dentry,
+ "gssd",
+ clnt, &gss_upcall_ops_v1,
+ RPC_PIPE_WAIT_FOR_OPEN);
+ if (IS_ERR(gss_auth->dentry[1])) {
+ err = PTR_ERR(gss_auth->dentry[1]);
goto err_put_mech;
}
+ gss_auth->dentry[0] = rpc_mkpipe(clnt->cl_dentry,
+ gss_auth->mech->gm_name,
+ clnt, &gss_upcall_ops_v0,
+ RPC_PIPE_WAIT_FOR_OPEN);
+ if (IS_ERR(gss_auth->dentry[0])) {
+ err = PTR_ERR(gss_auth->dentry[0]);
+ goto err_unlink_pipe_1;
+ }
err = rpcauth_init_credcache(auth);
if (err)
- goto err_unlink_pipe;
+ goto err_unlink_pipe_0;
return auth;
-err_unlink_pipe:
- rpc_unlink(gss_auth->dentry);
+err_unlink_pipe_0:
+ rpc_unlink(gss_auth->dentry[0]);
+err_unlink_pipe_1:
+ rpc_unlink(gss_auth->dentry[1]);
err_put_mech:
gss_mech_put(gss_auth->mech);
err_free:
static void
gss_free(struct gss_auth *gss_auth)
{
- rpc_unlink(gss_auth->dentry);
- gss_auth->dentry = NULL;
+ rpc_unlink(gss_auth->dentry[1]);
+ rpc_unlink(gss_auth->dentry[0]);
gss_mech_put(gss_auth->mech);
kfree(gss_auth);
struct rpc_task *task;
if (gss_cred->gc_ctx == NULL ||
- test_and_clear_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) == 0)
+ test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) == 0)
return 0;
gss_cred->gc_ctx->gc_proc = RPC_GSS_PROC_DESTROY;
}
static void
-gss_destroy_cred(struct rpc_cred *cred)
+gss_destroy_nullcred(struct rpc_cred *cred)
{
struct gss_cred *gss_cred = container_of(cred, struct gss_cred, gc_base);
struct gss_auth *gss_auth = container_of(cred->cr_auth, struct gss_auth, rpc_auth);
struct gss_cl_ctx *ctx = gss_cred->gc_ctx;
- if (gss_destroying_context(cred))
- return;
rcu_assign_pointer(gss_cred->gc_ctx, NULL);
call_rcu(&cred->cr_rcu, gss_free_cred_callback);
if (ctx)
kref_put(&gss_auth->kref, gss_free_callback);
}
+static void
+gss_destroy_cred(struct rpc_cred *cred)
+{
+
+ if (gss_destroying_context(cred))
+ return;
+ gss_destroy_nullcred(cred);
+}
+
/*
* Lookup RPCSEC_GSS cred for the current process
*/
offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
*p++ = htonl(rqstp->rq_seqno);
- status = rpc_call_xdrproc(encode, rqstp, p, obj);
+ status = encode(rqstp, p, obj);
if (status)
return status;
offset = (u8 *)p - (u8 *)snd_buf->head[0].iov_base;
*p++ = htonl(rqstp->rq_seqno);
- status = rpc_call_xdrproc(encode, rqstp, p, obj);
+ status = encode(rqstp, p, obj);
if (status)
return status;
/* The spec seems a little ambiguous here, but I think that not
* wrapping context destruction requests makes the most sense.
*/
- status = rpc_call_xdrproc(encode, rqstp, p, obj);
+ status = encode(rqstp, p, obj);
goto out;
}
switch (gss_cred->gc_service) {
case RPC_GSS_SVC_NONE:
- status = rpc_call_xdrproc(encode, rqstp, p, obj);
+ status = encode(rqstp, p, obj);
break;
case RPC_GSS_SVC_INTEGRITY:
status = gss_wrap_req_integ(cred, ctx, encode,
cred->cr_auth->au_rslack = cred->cr_auth->au_verfsize + (p - savedp)
+ (savedlen - head->iov_len);
out_decode:
- status = rpc_call_xdrproc(decode, rqstp, p, obj);
+ status = decode(rqstp, p, obj);
out:
gss_put_ctx(ctx);
dprintk("RPC: %5u gss_unwrap_resp returning %d\n", task->tk_pid,
static const struct rpc_credops gss_nullops = {
.cr_name = "AUTH_GSS",
- .crdestroy = gss_destroy_cred,
+ .crdestroy = gss_destroy_nullcred,
.crbind = rpcauth_generic_bind_cred,
.crmatch = gss_match,
.crmarshal = gss_marshal,
.crunwrap_resp = gss_unwrap_resp,
};
-static struct rpc_pipe_ops gss_upcall_ops = {
+static struct rpc_pipe_ops gss_upcall_ops_v0 = {
+ .upcall = gss_pipe_upcall,
+ .downcall = gss_pipe_downcall,
+ .destroy_msg = gss_pipe_destroy_msg,
+ .open_pipe = gss_pipe_open_v0,
+ .release_pipe = gss_pipe_release,
+};
+
+static struct rpc_pipe_ops gss_upcall_ops_v1 = {
.upcall = gss_pipe_upcall,
.downcall = gss_pipe_downcall,
.destroy_msg = gss_pipe_destroy_msg,
+ .open_pipe = gss_pipe_open_v1,
.release_pipe = gss_pipe_release,
};
err = gss_svc_init();
if (err)
goto out_unregister;
+ rpc_init_wait_queue(&pipe_version_rpc_waitqueue, "gss pipe version");
return 0;
out_unregister:
rpcauth_unregister(&authgss_ops);
return(1 + der_length_size(body_size) + body_size);
}
-EXPORT_SYMBOL(g_token_size);
+EXPORT_SYMBOL_GPL(g_token_size);
/* fills in a buffer with the token header. The buffer is assumed to
be the right size. buf is advanced past the token header */
TWRITE_STR(*buf, mech->data, ((int) mech->len));
}
-EXPORT_SYMBOL(g_make_token_header);
+EXPORT_SYMBOL_GPL(g_make_token_header);
/*
* Given a buffer containing a token, reads and verifies the token,
return(ret);
}
-EXPORT_SYMBOL(g_verify_token_header);
+EXPORT_SYMBOL_GPL(g_verify_token_header);
return 0;
}
-EXPORT_SYMBOL(gss_mech_register);
+EXPORT_SYMBOL_GPL(gss_mech_register);
void
gss_mech_unregister(struct gss_api_mech *gm)
gss_mech_free(gm);
}
-EXPORT_SYMBOL(gss_mech_unregister);
+EXPORT_SYMBOL_GPL(gss_mech_unregister);
struct gss_api_mech *
gss_mech_get(struct gss_api_mech *gm)
return gm;
}
-EXPORT_SYMBOL(gss_mech_get);
+EXPORT_SYMBOL_GPL(gss_mech_get);
struct gss_api_mech *
gss_mech_get_by_name(const char *name)
}
-EXPORT_SYMBOL(gss_mech_get_by_name);
+EXPORT_SYMBOL_GPL(gss_mech_get_by_name);
static inline int
mech_supports_pseudoflavor(struct gss_api_mech *gm, u32 pseudoflavor)
return gm;
}
-EXPORT_SYMBOL(gss_mech_get_by_pseudoflavor);
+EXPORT_SYMBOL_GPL(gss_mech_get_by_pseudoflavor);
u32
gss_svc_to_pseudoflavor(struct gss_api_mech *gm, u32 service)
}
return RPC_AUTH_MAXFLAVOR; /* illegal value */
}
-EXPORT_SYMBOL(gss_svc_to_pseudoflavor);
+EXPORT_SYMBOL_GPL(gss_svc_to_pseudoflavor);
u32
gss_pseudoflavor_to_service(struct gss_api_mech *gm, u32 pseudoflavor)
return 0;
}
-EXPORT_SYMBOL(gss_pseudoflavor_to_service);
+EXPORT_SYMBOL_GPL(gss_pseudoflavor_to_service);
char *
gss_service_to_auth_domain_name(struct gss_api_mech *gm, u32 service)
return NULL;
}
-EXPORT_SYMBOL(gss_service_to_auth_domain_name);
+EXPORT_SYMBOL_GPL(gss_service_to_auth_domain_name);
void
gss_mech_put(struct gss_api_mech * gm)
module_put(gm->gm_owner);
}
-EXPORT_SYMBOL(gss_mech_put);
+EXPORT_SYMBOL_GPL(gss_mech_put);
/* The mech could probably be determined from the token instead, but it's just
* as easy for now to pass it in. */
struct svc_cred cred;
struct gss_svc_seq_data seqdata;
struct gss_ctx *mechctx;
+ char *client_name;
};
static struct cache_head *rsc_table[RSC_HASHMAX];
gss_delete_sec_context(&rsci->mechctx);
if (rsci->cred.cr_group_info)
put_group_info(rsci->cred.cr_group_info);
+ kfree(rsci->client_name);
}
static void rsc_put(struct kref *ref)
tmp->handle.data = NULL;
new->mechctx = NULL;
new->cred.cr_group_info = NULL;
+ new->client_name = NULL;
}
static void
spin_lock_init(&new->seqdata.sd_lock);
new->cred = tmp->cred;
tmp->cred.cr_group_info = NULL;
+ new->client_name = tmp->client_name;
+ tmp->client_name = NULL;
}
static struct cache_head *
status = gss_import_sec_context(buf, len, gm, &rsci.mechctx);
if (status)
goto out;
+
+ /* get client name */
+ len = qword_get(&mesg, buf, mlen);
+ if (len > 0) {
+ rsci.client_name = kstrdup(buf, GFP_KERNEL);
+ if (!rsci.client_name)
+ goto out;
+ }
+
}
rsci.h.expiry_time = expiry;
rscp = rsc_update(&rsci, rscp);
return gd->pseudoflavor;
}
-EXPORT_SYMBOL(svcauth_gss_flavor);
+EXPORT_SYMBOL_GPL(svcauth_gss_flavor);
int
svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name)
return stat;
}
-EXPORT_SYMBOL(svcauth_gss_register_pseudoflavor);
+EXPORT_SYMBOL_GPL(svcauth_gss_register_pseudoflavor);
static inline int
read_u32_from_xdr_buf(struct xdr_buf *buf, int base, u32 *obj)
struct rsc *rsci;
};
+char *svc_gss_principal(struct svc_rqst *rqstp)
+{
+ struct gss_svc_data *gd = (struct gss_svc_data *)rqstp->rq_auth_data;
+
+ if (gd && gd->rsci)
+ return gd->rsci->client_name;
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(svc_gss_principal);
+
static int
svcauth_gss_set_client(struct svc_rqst *rqstp)
{
clnt->cl_rtt = &clnt->cl_rtt_default;
rpc_init_rtt(&clnt->cl_rtt_default, clnt->cl_timeout->to_initval);
+ clnt->cl_principal = NULL;
+ if (args->client_name) {
+ clnt->cl_principal = kstrdup(args->client_name, GFP_KERNEL);
+ if (!clnt->cl_principal)
+ goto out_no_principal;
+ }
kref_init(&clnt->cl_kref);
rpc_put_mount();
}
out_no_path:
+ kfree(clnt->cl_principal);
+out_no_principal:
rpc_free_iostats(clnt->cl_metrics);
out_no_stats:
if (clnt->cl_server != clnt->cl_inline_name)
new->cl_metrics = rpc_alloc_iostats(clnt);
if (new->cl_metrics == NULL)
goto out_no_stats;
+ if (clnt->cl_principal) {
+ new->cl_principal = kstrdup(clnt->cl_principal, GFP_KERNEL);
+ if (new->cl_principal == NULL)
+ goto out_no_principal;
+ }
kref_init(&new->cl_kref);
err = rpc_setup_pipedir(new, clnt->cl_program->pipe_dir_name);
if (err != 0)
rpciod_up();
return new;
out_no_path:
+ kfree(new->cl_principal);
+out_no_principal:
rpc_free_iostats(new->cl_metrics);
out_no_stats:
kfree(new);
out_free:
rpc_unregister_client(clnt);
rpc_free_iostats(clnt->cl_metrics);
+ kfree(clnt->cl_principal);
clnt->cl_metrics = NULL;
xprt_put(clnt->cl_xprt);
rpciod_down();
wake_up(&rpci->waitq);
return res;
}
-EXPORT_SYMBOL(rpc_queue_upcall);
+EXPORT_SYMBOL_GPL(rpc_queue_upcall);
static inline void
rpc_inode_setowner(struct inode *inode, void *private)
{
struct rpc_inode *rpci = RPC_I(inode);
struct rpc_pipe_ops *ops;
+ int need_release;
mutex_lock(&inode->i_mutex);
ops = rpci->ops;
if (ops != NULL) {
LIST_HEAD(free_list);
-
spin_lock(&inode->i_lock);
+ need_release = rpci->nreaders != 0 || rpci->nwriters != 0;
rpci->nreaders = 0;
list_splice_init(&rpci->in_upcall, &free_list);
list_splice_init(&rpci->pipe, &free_list);
spin_unlock(&inode->i_lock);
rpc_purge_list(rpci, &free_list, ops->destroy_msg, -EPIPE);
rpci->nwriters = 0;
- if (ops->release_pipe)
+ if (need_release && ops->release_pipe)
ops->release_pipe(inode);
cancel_delayed_work_sync(&rpci->queue_timeout);
}
rpc_pipe_open(struct inode *inode, struct file *filp)
{
struct rpc_inode *rpci = RPC_I(inode);
+ int first_open;
int res = -ENXIO;
mutex_lock(&inode->i_mutex);
- if (rpci->ops != NULL) {
- if (filp->f_mode & FMODE_READ)
- rpci->nreaders ++;
- if (filp->f_mode & FMODE_WRITE)
- rpci->nwriters ++;
- res = 0;
+ if (rpci->ops == NULL)
+ goto out;
+ first_open = rpci->nreaders == 0 && rpci->nwriters == 0;
+ if (first_open && rpci->ops->open_pipe) {
+ res = rpci->ops->open_pipe(inode);
+ if (res)
+ goto out;
}
+ if (filp->f_mode & FMODE_READ)
+ rpci->nreaders++;
+ if (filp->f_mode & FMODE_WRITE)
+ rpci->nwriters++;
+ res = 0;
+out:
mutex_unlock(&inode->i_mutex);
return res;
}
{
struct rpc_inode *rpci = RPC_I(inode);
struct rpc_pipe_msg *msg;
+ int last_close;
mutex_lock(&inode->i_mutex);
if (rpci->ops == NULL)
rpci->ops->destroy_msg, -EAGAIN);
}
}
- if (rpci->ops->release_pipe)
+ last_close = rpci->nwriters == 0 && rpci->nreaders == 0;
+ if (last_close && rpci->ops->release_pipe)
rpci->ops->release_pipe(inode);
out:
mutex_unlock(&inode->i_mutex);
RPCAUTH_nfs,
RPCAUTH_portmap,
RPCAUTH_statd,
+ RPCAUTH_nfsd4_cb,
RPCAUTH_RootEOF
};
.name = "statd",
.mode = S_IFDIR | S_IRUGO | S_IXUGO,
},
+ [RPCAUTH_nfsd4_cb] = {
+ .name = "nfsd4_cb",
+ .mode = S_IFDIR | S_IRUGO | S_IXUGO,
+ },
};
enum {
* @name: name of pipe
* @private: private data to associate with the pipe, for the caller's use
* @ops: operations defining the behavior of the pipe: upcall, downcall,
- * release_pipe, and destroy_msg.
+ * release_pipe, open_pipe, and destroy_msg.
* @flags: rpc_inode flags
*
* Data is made available for userspace to read by calls to
-ENOMEM);
goto out;
}
-EXPORT_SYMBOL(rpc_mkpipe);
+EXPORT_SYMBOL_GPL(rpc_mkpipe);
/**
* rpc_unlink - remove a pipe
dput(parent);
return error;
}
-EXPORT_SYMBOL(rpc_unlink);
+EXPORT_SYMBOL_GPL(rpc_unlink);
/*
* populate the filesystem
memcpy(p, obj->data, obj->len);
return p + XDR_QUADLEN(obj->len);
}
-EXPORT_SYMBOL(xdr_encode_netobj);
+EXPORT_SYMBOL_GPL(xdr_encode_netobj);
__be32 *
xdr_decode_netobj(__be32 *p, struct xdr_netobj *obj)
obj->data = (u8 *) p;
return p + XDR_QUADLEN(len);
}
-EXPORT_SYMBOL(xdr_decode_netobj);
+EXPORT_SYMBOL_GPL(xdr_decode_netobj);
/**
* xdr_encode_opaque_fixed - Encode fixed length opaque data
}
return p;
}
-EXPORT_SYMBOL(xdr_encode_opaque_fixed);
+EXPORT_SYMBOL_GPL(xdr_encode_opaque_fixed);
/**
* xdr_encode_opaque - Encode variable length opaque data
*p++ = htonl(nbytes);
return xdr_encode_opaque_fixed(p, ptr, nbytes);
}
-EXPORT_SYMBOL(xdr_encode_opaque);
+EXPORT_SYMBOL_GPL(xdr_encode_opaque);
__be32 *
xdr_encode_string(__be32 *p, const char *string)
{
return xdr_encode_array(p, string, strlen(string));
}
-EXPORT_SYMBOL(xdr_encode_string);
+EXPORT_SYMBOL_GPL(xdr_encode_string);
__be32 *
xdr_decode_string_inplace(__be32 *p, char **sp,
*sp = (char *) p;
return p + XDR_QUADLEN(len);
}
-EXPORT_SYMBOL(xdr_decode_string_inplace);
+EXPORT_SYMBOL_GPL(xdr_decode_string_inplace);
void
xdr_encode_pages(struct xdr_buf *xdr, struct page **pages, unsigned int base,
xdr->buflen += len;
xdr->len += len;
}
-EXPORT_SYMBOL(xdr_encode_pages);
+EXPORT_SYMBOL_GPL(xdr_encode_pages);
void
xdr_inline_pages(struct xdr_buf *xdr, unsigned int offset,
xdr->buflen += len;
}
-EXPORT_SYMBOL(xdr_inline_pages);
+EXPORT_SYMBOL_GPL(xdr_inline_pages);
/*
* Helper routines for doing 'memmove' like operations on a struct xdr_buf
{
xdr_shrink_bufhead(buf, len);
}
-EXPORT_SYMBOL(xdr_shift_buf);
+EXPORT_SYMBOL_GPL(xdr_shift_buf);
/**
* xdr_init_encode - Initialize a struct xdr_stream for sending data.
iov->iov_len += len;
}
}
-EXPORT_SYMBOL(xdr_init_encode);
+EXPORT_SYMBOL_GPL(xdr_init_encode);
/**
* xdr_reserve_space - Reserve buffer space for sending
xdr->buf->len += nbytes;
return p;
}
-EXPORT_SYMBOL(xdr_reserve_space);
+EXPORT_SYMBOL_GPL(xdr_reserve_space);
/**
* xdr_write_pages - Insert a list of pages into an XDR buffer for sending
buf->buflen += len;
buf->len += len;
}
-EXPORT_SYMBOL(xdr_write_pages);
+EXPORT_SYMBOL_GPL(xdr_write_pages);
/**
* xdr_init_decode - Initialize an xdr_stream for decoding data.
xdr->p = p;
xdr->end = (__be32 *)((char *)iov->iov_base + len);
}
-EXPORT_SYMBOL(xdr_init_decode);
+EXPORT_SYMBOL_GPL(xdr_init_decode);
/**
* xdr_inline_decode - Retrieve non-page XDR data to decode
xdr->p = q;
return p;
}
-EXPORT_SYMBOL(xdr_inline_decode);
+EXPORT_SYMBOL_GPL(xdr_inline_decode);
/**
* xdr_read_pages - Ensure page-based XDR data to decode is aligned at current pointer position
xdr->p = (__be32 *)((char *)iov->iov_base + padding);
xdr->end = (__be32 *)((char *)iov->iov_base + end);
}
-EXPORT_SYMBOL(xdr_read_pages);
+EXPORT_SYMBOL_GPL(xdr_read_pages);
/**
* xdr_enter_page - decode data from the XDR page
xdr->p = (__be32 *)(kaddr + xdr->buf->page_base);
xdr->end = (__be32 *)((char *)xdr->p + len);
}
-EXPORT_SYMBOL(xdr_enter_page);
+EXPORT_SYMBOL_GPL(xdr_enter_page);
static struct kvec empty_iov = {.iov_base = NULL, .iov_len = 0};
buf->page_len = 0;
buf->buflen = buf->len = iov->iov_len;
}
-EXPORT_SYMBOL(xdr_buf_from_iov);
+EXPORT_SYMBOL_GPL(xdr_buf_from_iov);
/* Sets subbuf to the portion of buf of length len beginning base bytes
* from the start of buf. Returns -1 if base of length are out of bounds. */
return -1;
return 0;
}
-EXPORT_SYMBOL(xdr_buf_subsegment);
+EXPORT_SYMBOL_GPL(xdr_buf_subsegment);
static void __read_bytes_from_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)
{
__read_bytes_from_xdr_buf(&subbuf, obj, len);
return 0;
}
-EXPORT_SYMBOL(read_bytes_from_xdr_buf);
+EXPORT_SYMBOL_GPL(read_bytes_from_xdr_buf);
static void __write_bytes_to_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)
{
*obj = ntohl(raw);
return 0;
}
-EXPORT_SYMBOL(xdr_decode_word);
+EXPORT_SYMBOL_GPL(xdr_decode_word);
int
xdr_encode_word(struct xdr_buf *buf, unsigned int base, u32 obj)
return write_bytes_to_xdr_buf(buf, base, &raw, sizeof(obj));
}
-EXPORT_SYMBOL(xdr_encode_word);
+EXPORT_SYMBOL_GPL(xdr_encode_word);
/* If the netobj starting offset bytes from the start of xdr_buf is contained
* entirely in the head or the tail, set object to point to it; otherwise
__read_bytes_from_xdr_buf(&subbuf, obj->data, obj->len);
return 0;
}
-EXPORT_SYMBOL(xdr_buf_read_netobj);
+EXPORT_SYMBOL_GPL(xdr_buf_read_netobj);
/* Returns 0 on success, or else a negative error code. */
static int
return xdr_xcode_array2(buf, base, desc, 0);
}
-EXPORT_SYMBOL(xdr_decode_array2);
+EXPORT_SYMBOL_GPL(xdr_decode_array2);
int
xdr_encode_array2(struct xdr_buf *buf, unsigned int base,
return xdr_xcode_array2(buf, base, desc, 1);
}
-EXPORT_SYMBOL(xdr_encode_array2);
+EXPORT_SYMBOL_GPL(xdr_encode_array2);
int
xdr_process_buf(struct xdr_buf *buf, unsigned int offset, unsigned int len,
out:
return ret;
}
-EXPORT_SYMBOL(xdr_process_buf);
+EXPORT_SYMBOL_GPL(xdr_process_buf);
projects / linux-2.6-omap-h63xx.git / commitdiff