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Diffstat (limited to 'net/sunrpc/xprtrdma/svc_rdma_backchannel.c')
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_backchannel.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
index a2a7519b0f23..2d8545c34095 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
@@ -129,7 +129,7 @@ static int svc_rdma_bc_sendto(struct svcxprt_rdma *rdma,
ret = -EIO;
goto out_unmap;
}
- atomic_inc(&rdma->sc_dma_used);
+ svc_rdma_count_mappings(rdma, ctxt);
memset(&send_wr, 0, sizeof(send_wr));
ctxt->cqe.done = svc_rdma_wc_send;
@@ -159,33 +159,34 @@ out_unmap:
/* Server-side transport endpoint wants a whole page for its send
* buffer. The client RPC code constructs the RPC header in this
* buffer before it invokes ->send_request.
- *
- * Returns NULL if there was a temporary allocation failure.
*/
-static void *
-xprt_rdma_bc_allocate(struct rpc_task *task, size_t size)
+static int
+xprt_rdma_bc_allocate(struct rpc_task *task)
{
struct rpc_rqst *rqst = task->tk_rqstp;
struct svc_xprt *sxprt = rqst->rq_xprt->bc_xprt;
+ size_t size = rqst->rq_callsize;
struct svcxprt_rdma *rdma;
struct page *page;
rdma = container_of(sxprt, struct svcxprt_rdma, sc_xprt);
- /* Prevent an infinite loop: try to make this case work */
- if (size > PAGE_SIZE)
+ if (size > PAGE_SIZE) {
WARN_ONCE(1, "svcrdma: large bc buffer request (size %zu)\n",
size);
+ return -EINVAL;
+ }
page = alloc_page(RPCRDMA_DEF_GFP);
if (!page)
- return NULL;
+ return -ENOMEM;
- return page_address(page);
+ rqst->rq_buffer = page_address(page);
+ return 0;
}
static void
-xprt_rdma_bc_free(void *buffer)
+xprt_rdma_bc_free(struct rpc_task *task)
{
/* No-op: ctxt and page have already been freed. */
}