diff options
| author |   Chuck Lever <chuck.lever@oracle.com> | 2016-01-07 14:49:37 -0500 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-01-19 15:30:48 -0500 |
| commit | 39b09a1a121cb22820c374f4e92f7ca34be1b75d (patch) | |
| tree | 215b3ad68610c11cca7ba37391e62d10b568c1fc /include | |
| parent | svcrdma: Remove unused req_map and ctxt kmem_caches (diff) | |
| download | linux-dev-39b09a1a121cb22820c374f4e92f7ca34be1b75d.tar.xz linux-dev-39b09a1a121cb22820c374f4e92f7ca34be1b75d.zip | |
svcrdma: Add gfp flags to svc_rdma_post_recv()
svc_rdma_post_recv() allocates pages for receive buffers on-demand.
It uses GFP_KERNEL so the allocator tries hard, and may sleep. But
I'm about to add a call to svc_rdma_post_recv() from a function
that may not sleep.
Since all svc_rdma_post_recv() call sites can tolerate its failure,
allow it to fail if the page allocator returns nothing. Longer term,
receive buffers, being a finite resource per-connection, should be
pre-allocated and re-used.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sunrpc/svc_rdma.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h index 141edbbb73b3..729ff356c18a 100644 --- a/include/linux/sunrpc/svc_rdma.h +++ b/include/linux/sunrpc/svc_rdma.h @@ -221,7 +221,7 @@ extern struct rpcrdma_read_chunk * extern int svc_rdma_send(struct svcxprt_rdma *, struct ib_send_wr *); extern void svc_rdma_send_error(struct svcxprt_rdma *, struct rpcrdma_msg *, enum rpcrdma_errcode); -extern int svc_rdma_post_recv(struct svcxprt_rdma *); +extern int svc_rdma_post_recv(struct svcxprt_rdma *, gfp_t); extern int svc_rdma_create_listen(struct svc_serv *, int, struct sockaddr *); extern struct svc_rdma_op_ctxt *svc_rdma_get_context(struct svcxprt_rdma *); extern void svc_rdma_put_context(struct svc_rdma_op_ctxt *, int); |