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svcrdma: Create a kmem cache for the WR contexts

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Create a kmem cache to hold WR contexts. Next we will convert
the WR context get and put services to use this kmem cache.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
This commit is contained in:
Tom Tucker 2008-05-28 14:05:54 -05:00
parent 902a94e088
commit bf5927d84e
1 changed files with 19 additions and 4 deletions
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23
net/sunrpc/xprtrdma/svc_rdma.c
View file

@ -69,8 +69,9 @@ atomic_t rdma_stat_rq_prod;
atomic_t rdma_stat_sq_poll; atomic_t rdma_stat_sq_poll;
atomic_t rdma_stat_sq_prod; atomic_t rdma_stat_sq_prod;
/* Temporary NFS request map cache */ /* Temporary NFS request map and context caches */
struct kmem_cache *svc_rdma_map_cachep; struct kmem_cache *svc_rdma_map_cachep;
struct kmem_cache *svc_rdma_ctxt_cachep;
/* /*
* This function implements reading and resetting an atomic_t stat * This function implements reading and resetting an atomic_t stat
@ -246,6 +247,7 @@ void svc_rdma_cleanup(void)
} }
svc_unreg_xprt_class(&svc_rdma_class); svc_unreg_xprt_class(&svc_rdma_class);
kmem_cache_destroy(svc_rdma_map_cachep); kmem_cache_destroy(svc_rdma_map_cachep);
kmem_cache_destroy(svc_rdma_ctxt_cachep);
} }
int svc_rdma_init(void) int svc_rdma_init(void)
@ -268,14 +270,27 @@ int svc_rdma_init(void)
NULL); NULL);
if (!svc_rdma_map_cachep) { if (!svc_rdma_map_cachep) {
printk(KERN_INFO "Could not allocate map cache.\n"); printk(KERN_INFO "Could not allocate map cache.\n");
goto err; goto err0;
}
/* Create the temporary context cache */
svc_rdma_ctxt_cachep =
kmem_cache_create("svc_rdma_ctxt_cache",
sizeof(struct svc_rdma_op_ctxt),
0,
SLAB_HWCACHE_ALIGN,
NULL);
if (!svc_rdma_ctxt_cachep) {
printk(KERN_INFO "Could not allocate WR ctxt cache.\n");
goto err1;
} }
/* Register RDMA with the SVC transport switch */ /* Register RDMA with the SVC transport switch */
svc_reg_xprt_class(&svc_rdma_class); svc_reg_xprt_class(&svc_rdma_class);
return 0; return 0;
err1:
err: kmem_cache_destroy(svc_rdma_map_cachep);
err0:
unregister_sysctl_table(svcrdma_table_header); unregister_sysctl_table(svcrdma_table_header);
return -ENOMEM; return -ENOMEM;
} }