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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-06-24 10:55:45 -0400
committerJ. Bruce Fields <bfields@redhat.com>2016-07-13 15:53:42 -0400
commit82ea2d7615309d755579d609ad9c11daea25d0cc (patch)
tree70e74dc49f8f0990b808cac0cb22eb178236d1a6 /net/sunrpc
parentd28c442f5bd5471adc4d1add5fa78109f811c0a3 (diff)
SUNRPC: Add a tracepoint for server socket out-of-space conditions
Add a tracepoint to track when the processing of incoming RPC data gets deferred due to out-of-space issues on the outgoing transport. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/svc_xprt.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index 4f01f63102ee..4d2189a562af 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -333,8 +333,12 @@ static bool svc_xprt_has_something_to_do(struct svc_xprt *xprt)
{
if (xprt->xpt_flags & ((1<<XPT_CONN)|(1<<XPT_CLOSE)))
return true;
- if (xprt->xpt_flags & ((1<<XPT_DATA)|(1<<XPT_DEFERRED)))
- return xprt->xpt_ops->xpo_has_wspace(xprt);
+ if (xprt->xpt_flags & ((1<<XPT_DATA)|(1<<XPT_DEFERRED))) {
+ if (xprt->xpt_ops->xpo_has_wspace(xprt))
+ return true;
+ trace_svc_xprt_no_write_space(xprt);
+ return false;
+ }
return false;
}