diff options
| author |   Chuck Lever <chuck.lever@oracle.com> | 2016-03-01 13:06:20 -0500 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2016-03-01 13:06:37 -0800 |
| commit | bf36387ad394ad4fc93ad85fdd4a95dfa583556a (patch) | |
| tree | b4c3ac4aee7be16136f8ed065ff0a8e8e1105db6 /net/sunrpc | |
| parent | svcrdma: Close connection when a send error occurs (diff) | |
| download | linux-dev-bf36387ad394ad4fc93ad85fdd4a95dfa583556a.tar.xz linux-dev-bf36387ad394ad4fc93ad85fdd4a95dfa583556a.zip | |
svcrdma: svc_rdma_post_recv() should close connection on error
Clean up: Most svc_rdma_post_recv() call sites close the transport
connection when a receive cannot be posted. Wrap that in a common
helper.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Devesh Sharma <devesh.sharma@broadcom.com>
Tested-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_backchannel.c | 11 | ||||
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_recvfrom.c | 10 | ||||
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_sendto.c | 7 | ||||
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_transport.c | 15 |
4 files changed, 19 insertions, 24 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c index de3919624fac..254be8661981 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c +++ b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c @@ -111,16 +111,9 @@ static int svc_rdma_bc_sendto(struct svcxprt_rdma *rdma, if (ret) goto out_err; - /* Post a recv buffer to handle the reply for this request. */ - ret = svc_rdma_post_recv(rdma, GFP_NOIO); - if (ret) { - pr_err("svcrdma: Failed to post bc receive buffer, err=%d.\n", - ret); - pr_err("svcrdma: closing transport %p.\n", rdma); - set_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags); - ret = -ENOTCONN; + ret = svc_rdma_repost_recv(rdma, GFP_NOIO); + if (ret) goto out_err; - } ctxt = svc_rdma_get_context(rdma); ctxt->pages[0] = virt_to_page(rqst->rq_buffer); diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c index c8b8a8b4181e..acf15b8bca70 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c +++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c @@ -711,13 +711,5 @@ defer: return 0; repost: - ret = svc_rdma_post_recv(rdma_xprt, GFP_KERNEL); - if (ret) { - pr_err("svcrdma: could not post a receive buffer, err=%d.\n", - ret); - pr_err("svcrdma: closing transport %p.\n", rdma_xprt); - set_bit(XPT_CLOSE, &rdma_xprt->sc_xprt.xpt_flags); - ret = -ENOTCONN; - } - return ret; + return svc_rdma_repost_recv(rdma_xprt, GFP_KERNEL); } diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c index 0f8798d4ed88..ace9efa7aa6c 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c +++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c @@ -475,13 +475,8 @@ static int send_reply(struct svcxprt_rdma *rdma, int pages; int ret; - /* Post a recv buffer to handle another request. */ - ret = svc_rdma_post_recv(rdma, GFP_KERNEL); + ret = svc_rdma_repost_recv(rdma, GFP_KERNEL); if (ret) { - printk(KERN_INFO - "svcrdma: could not post a receive buffer, err=%d." - "Closing transport %p.\n", ret, rdma); - set_bit(XPT_CLOSE, &rdma->sc_xprt.xpt_flags); svc_rdma_put_context(ctxt, 0); return -ENOTCONN; } diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index 5763825d09bf..03fdfce45493 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -722,6 +722,21 @@ int svc_rdma_post_recv(struct svcxprt_rdma *xprt, gfp_t flags) return -ENOMEM; } +int svc_rdma_repost_recv(struct svcxprt_rdma *xprt, gfp_t flags) +{ + int ret = 0; + + ret = svc_rdma_post_recv(xprt, flags); + if (ret) { + pr_err("svcrdma: could not post a receive buffer, err=%d.\n", + ret); + pr_err("svcrdma: closing transport %p.\n", xprt); + set_bit(XPT_CLOSE, &xprt->sc_xprt.xpt_flags); + ret = -ENOTCONN; + } + return ret; +} + /* * This function handles the CONNECT_REQUEST event on a listening * endpoint. It is passed the cma_id for the _new_ connection. The context in |