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Commit bf5927d8 authored by Tom Tucker's avatar Tom Tucker
Browse files

svcrdma: Create a kmem cache for the WR contexts 



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: default avatarTom Tucker <tom@opengridcomputing.com>
parent 902a94e0

net/sunrpc/xprtrdma/svc_rdma.c

+19 −4
Original line number Original line Diff line number Diff line
@@ -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;

}

}