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| author | David Howells <dhowells@redhat.com> | 2022-02-17 21:13:05 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2022-03-18 09:24:00 +0000 |
| commit | de74023befa1876f64bc5871a2a4a51850517118 (patch) | |
| tree | 2954b4d28282d5b8c9468e6d6433f2281ce286c3 /include/trace | |
| parent | 18b3ff9fe8b857557fd02bfae0d91834b2c380ca (diff) | |
| download | linux-stable-de74023befa1876f64bc5871a2a4a51850517118.tar.gz linux-stable-de74023befa1876f64bc5871a2a4a51850517118.tar.bz2 linux-stable-de74023befa1876f64bc5871a2a4a51850517118.zip | |
netfs: Trace refcounting on the netfs_io_request struct
Add refcount tracing for the netfs_io_request structure.
Changes
=======
ver #3)
- Switch 'W=' to 'R=' in the traceline to match other request debug IDs.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/164622997668.3564931.14456171619219324968.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/164678200943.1200972.7241495532327787765.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/164692900920.2099075.11847712419940675791.stgit@warthog.procyon.org.uk/ # v3
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/events/netfs.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/trace/events/netfs.h b/include/trace/events/netfs.h index 0c7a26c4d11c..e35a5ce52eb5 100644 --- a/include/trace/events/netfs.h +++ b/include/trace/events/netfs.h @@ -55,6 +55,15 @@ EM(netfs_fail_short_write_begin, "short-write-begin") \ E_(netfs_fail_prepare_write, "prep-write") +#define netfs_rreq_ref_traces \ + EM(netfs_rreq_trace_get_hold, "GET HOLD ") \ + EM(netfs_rreq_trace_get_subreq, "GET SUBREQ ") \ + EM(netfs_rreq_trace_put_complete, "PUT COMPLT ") \ + EM(netfs_rreq_trace_put_failed, "PUT FAILED ") \ + EM(netfs_rreq_trace_put_hold, "PUT HOLD ") \ + EM(netfs_rreq_trace_put_subreq, "PUT SUBREQ ") \ + E_(netfs_rreq_trace_new, "NEW ") + #ifndef __NETFS_DECLARE_TRACE_ENUMS_ONCE_ONLY #define __NETFS_DECLARE_TRACE_ENUMS_ONCE_ONLY @@ -67,6 +76,7 @@ enum netfs_read_trace { netfs_read_traces } __mode(byte); enum netfs_rreq_trace { netfs_rreq_traces } __mode(byte); enum netfs_sreq_trace { netfs_sreq_traces } __mode(byte); enum netfs_failure { netfs_failures } __mode(byte); +enum netfs_rreq_ref_trace { netfs_rreq_ref_traces } __mode(byte); #endif @@ -83,6 +93,7 @@ netfs_rreq_traces; netfs_sreq_sources; netfs_sreq_traces; netfs_failures; +netfs_rreq_ref_traces; /* * Now redefine the EM() and E_() macros to map the enums to the strings that @@ -229,6 +240,30 @@ TRACE_EVENT(netfs_failure, __entry->error) ); +TRACE_EVENT(netfs_rreq_ref, + TP_PROTO(unsigned int rreq_debug_id, int ref, + enum netfs_rreq_ref_trace what), + + TP_ARGS(rreq_debug_id, ref, what), + + TP_STRUCT__entry( + __field(unsigned int, rreq ) + __field(int, ref ) + __field(enum netfs_rreq_ref_trace, what ) + ), + + TP_fast_assign( + __entry->rreq = rreq_debug_id; + __entry->ref = ref; + __entry->what = what; + ), + + TP_printk("R=%08x %s r=%u", + __entry->rreq, + __print_symbolic(__entry->what, netfs_rreq_ref_traces), + __entry->ref) + ); + #undef EM #undef E_ #endif /* _TRACE_NETFS_H */ |