svcrdma: Add a type for keeping NFS RPC mapping

[linux-2.6-omap-h63xx.git] / net / sunrpc / xprtrdma / svc_rdma.c

diff --git a/net/sunrpc/xprtrdma/svc_rdma.c b/net/sunrpc/xprtrdma/svc_rdma.c
index 88c0ca20bb1eed0ea27502901cc773d471539e59..171f2053e90c857292b5cee8aa85b6ab1eb23734 100644 (file)
--- a/net/sunrpc/xprtrdma/svc_rdma.c
+++ b/net/sunrpc/xprtrdma/svc_rdma.c
@@ -69,6 +69,9 @@ atomic_t rdma_stat_rq_prod;
 atomic_t rdma_stat_sq_poll;
 atomic_t rdma_stat_sq_prod;
 
+/* Temporary NFS request map cache */
+struct kmem_cache *svc_rdma_map_cachep;
+
 /*
  * This function implements reading and resetting an atomic_t stat
  * variable through read/write to a proc file. Any write to the file
@@ -241,6 +244,7 @@ void svc_rdma_cleanup(void)
                svcrdma_table_header = NULL;
        }
        svc_unreg_xprt_class(&svc_rdma_class);
+       kmem_cache_destroy(svc_rdma_map_cachep);
 }
 
 int svc_rdma_init(void)
@@ -255,9 +259,24 @@ int svc_rdma_init(void)
                svcrdma_table_header =
                        register_sysctl_table(svcrdma_root_table);
 
+       /* Create the temporary map cache */
+       svc_rdma_map_cachep = kmem_cache_create("svc_rdma_map_cache",
+                                               sizeof(struct svc_rdma_req_map),
+                                               0,
+                                               SLAB_HWCACHE_ALIGN,
+                                               NULL);
+       if (!svc_rdma_map_cachep) {
+               printk(KERN_INFO "Could not allocate map cache.\n");
+               goto err;
+       }
+
        /* Register RDMA with the SVC transport switch */
        svc_reg_xprt_class(&svc_rdma_class);
        return 0;
+
+ err:
+       unregister_sysctl_table(svcrdma_table_header);
+       return -ENOMEM;
 }
 MODULE_AUTHOR("Tom Tucker <tom@opengridcomputing.com>");
 MODULE_DESCRIPTION("SVC RDMA Transport");