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| author |   Chuck Lever <chuck.lever@oracle.com> | 2020-04-15 09:05:26 -0400 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2020-05-20 17:30:44 -0400 |
| commit | 8954c5c212d321404a7aaf5b48f04a49655c928d (patch) | |
| tree | c1a9d3dc2a454bcf77f909cc6bab5279c8f43adc /include | |
| parent | NFSD: Add tracepoints for monitoring NFSD callbacks (diff) | |
| download | wireguard-linux-8954c5c212d321404a7aaf5b48f04a49655c928d.tar.xz wireguard-linux-8954c5c212d321404a7aaf5b48f04a49655c928d.zip | |
SUNRPC: Clean up request deferral tracepoints
- Rename these so they are easy to enable and search for as a set
- Move the tracepoints to get a more accurate sense of control flow
- Tracepoints should not fire on xprt shutdown
- Display memory address in case data structure had been corrupted
- Abandon dprintk in these paths
I haven't ever gotten one of these tracepoints to trigger. I wonder
if we should simply remove them.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/trace/events/sunrpc.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 2a7f6f83341f..852413cbb7d9 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -1406,27 +1406,32 @@ DECLARE_EVENT_CLASS(svc_deferred_event, TP_ARGS(dr), TP_STRUCT__entry( + __field(const void *, dr) __field(u32, xid) __string(addr, dr->xprt->xpt_remotebuf) ), TP_fast_assign( + __entry->dr = dr; __entry->xid = be32_to_cpu(*(__be32 *)(dr->args + (dr->xprt_hlen>>2))); __assign_str(addr, dr->xprt->xpt_remotebuf); ), - TP_printk("addr=%s xid=0x%08x", __get_str(addr), __entry->xid) + TP_printk("addr=%s dr=%p xid=0x%08x", __get_str(addr), __entry->dr, + __entry->xid) ); + #define DEFINE_SVC_DEFERRED_EVENT(name) \ - DEFINE_EVENT(svc_deferred_event, svc_##name##_deferred, \ + DEFINE_EVENT(svc_deferred_event, svc_defer_##name, \ TP_PROTO( \ const struct svc_deferred_req *dr \ ), \ TP_ARGS(dr)) DEFINE_SVC_DEFERRED_EVENT(drop); -DEFINE_SVC_DEFERRED_EVENT(revisit); +DEFINE_SVC_DEFERRED_EVENT(queue); +DEFINE_SVC_DEFERRED_EVENT(recv); TRACE_EVENT(svcsock_new_socket, TP_PROTO( |