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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-06-24 10:55:46 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2016-07-13 15:53:43 -0400 |
| commit | 104f6351f7dc0036575b4e47765d6d39c757c066 (patch) | |
| tree | e919bf3518ae0370aa0c6736556fc49b7abbd5ac /net/sunrpc | |
| parent | 82ea2d7615309d755579d609ad9c11daea25d0cc (diff) | |
| download | linux-stable-104f6351f7dc0036575b4e47765d6d39c757c066.tar.gz linux-stable-104f6351f7dc0036575b4e47765d6d39c757c066.tar.bz2 linux-stable-104f6351f7dc0036575b4e47765d6d39c757c066.zip | |
SUNRPC: Add tracepoints for dropped and deferred requests
Dropping and/or deferring requests has an impact on performance. Let's
make sure we can trace those events.
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.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 4d2189a562af..e7082a4aeb56 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -875,6 +875,7 @@ EXPORT_SYMBOL_GPL(svc_recv); */ void svc_drop(struct svc_rqst *rqstp) { + trace_svc_drop(rqstp); dprintk("svc: xprt %p dropped request\n", rqstp->rq_xprt); svc_xprt_release(rqstp); } @@ -1152,6 +1153,7 @@ static void svc_revisit(struct cache_deferred_req *dreq, int too_many) spin_unlock(&xprt->xpt_lock); dprintk("revisit canceled\n"); svc_xprt_put(xprt); + trace_svc_drop_deferred(dr); kfree(dr); return; } @@ -1209,6 +1211,7 @@ static struct cache_deferred_req *svc_defer(struct cache_req *req) set_bit(RQ_DROPME, &rqstp->rq_flags); dr->handle.revisit = svc_revisit; + trace_svc_defer(rqstp); return &dr->handle; } @@ -1249,6 +1252,7 @@ static struct svc_deferred_req *svc_deferred_dequeue(struct svc_xprt *xprt) struct svc_deferred_req, handle.recent); list_del_init(&dr->handle.recent); + trace_svc_revisit_deferred(dr); } else clear_bit(XPT_DEFERRED, &xprt->xpt_flags); spin_unlock(&xprt->xpt_lock); |