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authorChuck Lever <chuck.lever@oracle.com>2021-10-04 17:16:26 +0300
committerJ. Bruce Fields <bfields@redhat.com>2021-10-04 22:40:15 +0300
commit22a027e8c03f9a7794d16daa3b4b117ac6d340c3 (patch)
treed01c749279ec39f2b944d1a167293a490f9840a4 /include/trace
parent45f135846815ef787b41767ad3823194de5ccfdf (diff)
downloadlinux-22a027e8c03f9a7794d16daa3b4b117ac6d340c3.tar.xz
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 'include/trace')
-rw-r--r--include/trace/events/sunrpc.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 2d04eb96d418..fb016308c185 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -1859,6 +1859,24 @@ TRACE_EVENT(svc_wake_up,
TP_printk("pid=%d", __entry->pid)
);
+TRACE_EVENT(svc_alloc_arg_err,
+ TP_PROTO(
+ unsigned int pages
+ ),
+
+ TP_ARGS(pages),
+
+ TP_STRUCT__entry(
+ __field(unsigned int, pages)
+ ),
+
+ TP_fast_assign(
+ __entry->pages = pages;
+ ),
+
+ TP_printk("pages=%u", __entry->pages)
+);
+
TRACE_EVENT(svc_handle_xprt,
TP_PROTO(struct svc_xprt *xprt, int len),