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| author |   Chuck Lever <chuck.lever@oracle.com> | 2021-10-04 10:16:26 -0400 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2021-10-04 15:40:15 -0400 |
| commit | 22a027e8c03f9a7794d16daa3b4b117ac6d340c3 (patch) | |
| tree | d01c749279ec39f2b944d1a167293a490f9840a4 /net/sunrpc | |
| parent | svcrdma: Split svcrmda_wc_{read,write} tracepoints (diff) | |
| download | linux-dev-22a027e8c03f9a7794d16daa3b4b117ac6d340c3.tar.xz linux-dev-22a027e8c03f9a7794d16daa3b4b117ac6d340c3.zip | |
SUNRPC: Add trace event when alloc_pages_bulk() makes no progress
This is an operational low memory situation that needs to be
flagged. The new tracepoint records a timestamp and the nfsd thread
that failed to allocate pages.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/svc_xprt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 6316bd2b8f37..1e99ba1b9d72 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -687,6 +687,7 @@ static int svc_alloc_arg(struct svc_rqst *rqstp) set_current_state(TASK_RUNNING); return -EINTR; } + trace_svc_alloc_arg_err(pages); schedule_timeout(msecs_to_jiffies(500)); } rqstp->rq_page_end = &rqstp->rq_pages[pages]; |