* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: fine-tune SD_SIBLING_INIT
sched: fine-tune SD_MC_INIT
sched: fix memory leak in a failure path
sched: fix a bug in sched domain degenerate
if (PagePinned(virt_to_page(mm->pgd))) {
SetPagePinned(page);
+ vm_unmap_aliases();
if (!PageHighMem(page)) {
make_lowmem_page_readonly(__va(PFN_PHYS((unsigned long)pfn)));
if (level == PT_PTE && USE_SPLIT_PTLOCKS)
pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
- } else
+ } else {
/* make sure there are no stray mappings of
this page */
kmap_flush_unused();
- vm_unmap_aliases();
+ }
}
}
read-only, and can be pinned. */
static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd)
{
+ vm_unmap_aliases();
+
xen_mc_batch();
- if (xen_pgd_walk(mm, xen_pin_page, USER_LIMIT)) {
- /* re-enable interrupts for kmap_flush_unused */
+ if (xen_pgd_walk(mm, xen_pin_page, USER_LIMIT)) {
+ /* re-enable interrupts for flushing */
xen_mc_issue(0);
+
kmap_flush_unused();
- vm_unmap_aliases();
+
xen_mc_batch();
}
const struct dmi_header *dm = (const struct dmi_header *)data;
/*
- * We want to know the total length (formated area and strings)
- * before decoding to make sure we won't run off the table in
- * dmi_decode or dmi_string
+ * We want to know the total length (formatted area and
+ * strings) before decoding to make sure we won't run off the
+ * table in dmi_decode or dmi_string
*/
data += dm->length;
while ((data - buf < len - 1) && (data[0] || data[1]))
* Fusion MPT LAN private structures
*/
-struct NAA_Hosed {
- u16 NAA;
- u8 ieee[FC_ALEN];
- struct NAA_Hosed *next;
-};
-
struct BufferControl {
struct sk_buff *skb;
dma_addr_t dma;
static u32 max_buckets_out = 127;
static u32 tx_max_out_p = 127 - 16;
-#ifdef QLOGIC_NAA_WORKAROUND
-static struct NAA_Hosed *mpt_bad_naa = NULL;
-DEFINE_RWLOCK(bad_naa_lock);
-#endif
-
/*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
/**
* lan_reply - Handle all data sent from the hardware.
// ctx, skb, skb->data));
mac = skb_mac_header(skb);
-#ifdef QLOGIC_NAA_WORKAROUND
-{
- struct NAA_Hosed *nh;
-
- /* Munge the NAA for Tx packets to QLogic boards, which don't follow
- RFC 2625. The longer I look at this, the more my opinion of Qlogic
- drops. */
- read_lock_irq(&bad_naa_lock);
- for (nh = mpt_bad_naa; nh != NULL; nh=nh->next) {
- if ((nh->ieee[0] == mac[0]) &&
- (nh->ieee[1] == mac[1]) &&
- (nh->ieee[2] == mac[2]) &&
- (nh->ieee[3] == mac[3]) &&
- (nh->ieee[4] == mac[4]) &&
- (nh->ieee[5] == mac[5])) {
- cur_naa = nh->NAA;
- dlprintk ((KERN_INFO "mptlan/sdu_send: using NAA value "
- "= %04x.\n", cur_naa));
- break;
- }
- }
- read_unlock_irq(&bad_naa_lock);
-}
-#endif
pTrans->TransactionDetails[0] = cpu_to_le32((cur_naa << 16) |
(mac[0] << 8) |
fcllc = (struct fcllc *)skb->data;
-#ifdef QLOGIC_NAA_WORKAROUND
-{
- u16 source_naa = fch->stype, found = 0;
-
- /* Workaround for QLogic not following RFC 2625 in regards to the NAA
- value. */
-
- if ((source_naa & 0xF000) == 0)
- source_naa = swab16(source_naa);
-
- if (fcllc->ethertype == htons(ETH_P_ARP))
- dlprintk ((KERN_INFO "mptlan/type_trans: got arp req/rep w/ naa of "
- "%04x.\n", source_naa));
-
- if ((fcllc->ethertype == htons(ETH_P_ARP)) &&
- ((source_naa >> 12) != MPT_LAN_NAA_RFC2625)){
- struct NAA_Hosed *nh, *prevnh;
- int i;
-
- dlprintk ((KERN_INFO "mptlan/type_trans: ARP Req/Rep from "
- "system with non-RFC 2625 NAA value (%04x).\n",
- source_naa));
-
- write_lock_irq(&bad_naa_lock);
- for (prevnh = nh = mpt_bad_naa; nh != NULL;
- prevnh=nh, nh=nh->next) {
- if ((nh->ieee[0] == fch->saddr[0]) &&
- (nh->ieee[1] == fch->saddr[1]) &&
- (nh->ieee[2] == fch->saddr[2]) &&
- (nh->ieee[3] == fch->saddr[3]) &&
- (nh->ieee[4] == fch->saddr[4]) &&
- (nh->ieee[5] == fch->saddr[5])) {
- found = 1;
- dlprintk ((KERN_INFO "mptlan/type_trans: ARP Re"
- "q/Rep w/ bad NAA from system already"
- " in DB.\n"));
- break;
- }
- }
-
- if ((!found) && (nh == NULL)) {
-
- nh = kmalloc(sizeof(struct NAA_Hosed), GFP_KERNEL);
- dlprintk ((KERN_INFO "mptlan/type_trans: ARP Req/Rep w/"
- " bad NAA from system not yet in DB.\n"));
-
- if (nh != NULL) {
- nh->next = NULL;
- if (!mpt_bad_naa)
- mpt_bad_naa = nh;
- if (prevnh)
- prevnh->next = nh;
-
- nh->NAA = source_naa; /* Set the S_NAA value. */
- for (i = 0; i < FC_ALEN; i++)
- nh->ieee[i] = fch->saddr[i];
- dlprintk ((KERN_INFO "Got ARP from %02x:%02x:%02x:%02x:"
- "%02x:%02x with non-compliant S_NAA value.\n",
- fch->saddr[0], fch->saddr[1], fch->saddr[2],
- fch->saddr[3], fch->saddr[4],fch->saddr[5]));
- } else {
- printk (KERN_ERR "mptlan/type_trans: Unable to"
- " kmalloc a NAA_Hosed struct.\n");
- }
- } else if (!found) {
- printk (KERN_ERR "mptlan/type_trans: found not"
- " set, but nh isn't null. Evil "
- "funkiness abounds.\n");
- }
- write_unlock_irq(&bad_naa_lock);
- }
-}
-#endif
/* Strip the SNAP header from ARP packets since we don't
* pass them through to the 802.2/SNAP layers.
gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT);
free = ext4_free_blocks_after_init(sb, group, gdp);
gdp->bg_free_blocks_count = cpu_to_le16(free);
+ gdp->bg_checksum = ext4_group_desc_csum(sbi, group,
+ gdp);
}
spin_unlock(sb_bgl_lock(sbi, group));
unlock_page(page);
return 0;
}
+ /* now mark the buffer_heads as dirty and uptodate */
+ block_commit_write(page, 0, PAGE_CACHE_SIZE);
}
if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
static int ext4_index_trans_blocks(struct inode *inode, int nrblocks, int chunk)
{
if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL))
- return ext4_indirect_trans_blocks(inode, nrblocks, 0);
- return ext4_ext_index_trans_blocks(inode, nrblocks, 0);
+ return ext4_indirect_trans_blocks(inode, nrblocks, chunk);
+ return ext4_ext_index_trans_blocks(inode, nrblocks, chunk);
}
+
/*
* Account for index blocks, block groups bitmaps and block group
* descriptor blocks if modify datablocks and index blocks
else if (block >= (entry->start_blk + entry->count))
n = &(*n)->rb_right;
else {
+ ext4_unlock_group(sb, group);
ext4_error(sb, __func__,
"Double free of blocks %d (%d %d)\n",
block, entry->start_blk, entry->count);
/* We allocate both existing and potentially added groups */
flex_group_count = ((sbi->s_groups_count + groups_per_flex - 1) +
- ((sbi->s_es->s_reserved_gdt_blocks +1 ) <<
- EXT4_DESC_PER_BLOCK_BITS(sb))) /
- groups_per_flex;
+ ((le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) + 1) <<
+ EXT4_DESC_PER_BLOCK_BITS(sb))) / groups_per_flex;
sbi->s_flex_groups = kzalloc(flex_group_count *
sizeof(struct flex_groups), GFP_KERNEL);
if (sbi->s_flex_groups == NULL) {
/*
* Ext4 always journals updates to the superblock itself, so we don't
* have to propagate any other updates to the superblock on disk at this
- * point. Just start an async writeback to get the buffers on their way
- * to the disk.
- *
- * This implicitly triggers the writebehind on sync().
+ * point. (We can probably nuke this function altogether, and remove
+ * any mention to sb->s_dirt in all of fs/ext4; eventual cleanup...)
*/
-
static void ext4_write_super(struct super_block *sb)
{
if (mutex_trylock(&sb->s_lock) != 0)
static int ext4_sync_fs(struct super_block *sb, int wait)
{
- tid_t target;
+ int ret = 0;
trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait);
sb->s_dirt = 0;
- if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, &target)) {
- if (wait)
- jbd2_log_wait_commit(EXT4_SB(sb)->s_journal, target);
- }
- return 0;
+ if (wait)
+ ret = ext4_force_commit(sb);
+ else
+ jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, NULL);
+ return ret;
}
/*
*/
void __log_wait_for_space(journal_t *journal)
{
- int nblocks;
+ int nblocks, space_left;
assert_spin_locked(&journal->j_state_lock);
nblocks = jbd_space_needed(journal);
/*
* Test again, another process may have checkpointed while we
* were waiting for the checkpoint lock. If there are no
- * outstanding transactions there is nothing to checkpoint and
- * we can't make progress. Abort the journal in this case.
+ * transactions ready to be checkpointed, try to recover
+ * journal space by calling cleanup_journal_tail(), and if
+ * that doesn't work, by waiting for the currently committing
+ * transaction to complete. If there is absolutely no way
+ * to make progress, this is either a BUG or corrupted
+ * filesystem, so abort the journal and leave a stack
+ * trace for forensic evidence.
*/
spin_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
nblocks = jbd_space_needed(journal);
- if (__log_space_left(journal) < nblocks) {
+ space_left = __log_space_left(journal);
+ if (space_left < nblocks) {
int chkpt = journal->j_checkpoint_transactions != NULL;
+ tid_t tid = 0;
+ if (journal->j_committing_transaction)
+ tid = journal->j_committing_transaction->t_tid;
spin_unlock(&journal->j_list_lock);
spin_unlock(&journal->j_state_lock);
if (chkpt) {
log_do_checkpoint(journal);
+ } else if (cleanup_journal_tail(journal) == 0) {
+ /* We were able to recover space; yay! */
+ ;
+ } else if (tid) {
+ log_wait_commit(journal, tid);
} else {
- printk(KERN_ERR "%s: no transactions\n",
- __func__);
+ printk(KERN_ERR "%s: needed %d blocks and "
+ "only had %d space available\n",
+ __func__, nblocks, space_left);
+ printk(KERN_ERR "%s: no way to get more "
+ "journal space\n", __func__);
+ WARN_ON(1);
journal_abort(journal, 0);
}
-
spin_lock(&journal->j_state_lock);
} else {
spin_unlock(&journal->j_list_lock);
*/
void __jbd2_log_wait_for_space(journal_t *journal)
{
- int nblocks;
+ int nblocks, space_left;
assert_spin_locked(&journal->j_state_lock);
nblocks = jbd_space_needed(journal);
/*
* Test again, another process may have checkpointed while we
* were waiting for the checkpoint lock. If there are no
- * outstanding transactions there is nothing to checkpoint and
- * we can't make progress. Abort the journal in this case.
+ * transactions ready to be checkpointed, try to recover
+ * journal space by calling cleanup_journal_tail(), and if
+ * that doesn't work, by waiting for the currently committing
+ * transaction to complete. If there is absolutely no way
+ * to make progress, this is either a BUG or corrupted
+ * filesystem, so abort the journal and leave a stack
+ * trace for forensic evidence.
*/
spin_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
nblocks = jbd_space_needed(journal);
- if (__jbd2_log_space_left(journal) < nblocks) {
+ space_left = __jbd2_log_space_left(journal);
+ if (space_left < nblocks) {
int chkpt = journal->j_checkpoint_transactions != NULL;
+ tid_t tid = 0;
+ if (journal->j_committing_transaction)
+ tid = journal->j_committing_transaction->t_tid;
spin_unlock(&journal->j_list_lock);
spin_unlock(&journal->j_state_lock);
if (chkpt) {
jbd2_log_do_checkpoint(journal);
+ } else if (jbd2_cleanup_journal_tail(journal) == 0) {
+ /* We were able to recover space; yay! */
+ ;
+ } else if (tid) {
+ jbd2_log_wait_commit(journal, tid);
} else {
- printk(KERN_ERR "%s: no transactions\n",
- __func__);
+ printk(KERN_ERR "%s: needed %d blocks and "
+ "only had %d space available\n",
+ __func__, nblocks, space_left);
+ printk(KERN_ERR "%s: no way to get more "
+ "journal space in %s\n", __func__,
+ journal->j_devname);
+ WARN_ON(1);
jbd2_journal_abort(journal, 0);
}
-
spin_lock(&journal->j_state_lock);
} else {
spin_unlock(&journal->j_list_lock);
if (!journal->j_wbuf) {
printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n",
__func__);
+ jbd2_stats_proc_exit(journal);
kfree(journal);
return NULL;
}
if (err) {
printk(KERN_ERR "%s: Cannnot locate journal superblock\n",
__func__);
+ jbd2_stats_proc_exit(journal);
kfree(journal);
return NULL;
}
#define VMAP_BLOCK_SIZE (VMAP_BBMAP_BITS * PAGE_SIZE)
+static bool vmap_initialized __read_mostly = false;
+
struct vmap_block_queue {
spinlock_t lock;
struct list_head free;
int cpu;
int flush = 0;
+ if (unlikely(!vmap_initialized))
+ return;
+
for_each_possible_cpu(cpu) {
struct vmap_block_queue *vbq = &per_cpu(vmap_block_queue, cpu);
struct vmap_block *vb;
INIT_LIST_HEAD(&vbq->dirty);
vbq->nr_dirty = 0;
}
+
+ vmap_initialized = true;
}
void unmap_kernel_range(unsigned long addr, unsigned long size)
projects / linux-2.6-omap-h63xx.git / commitdiff