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cifs: Add tracepoints for errors on flush or fsync
authorSteve French <stfrench@microsoft.com>
Thu, 6 Feb 2020 00:22:37 +0000 (18:22 -0600)
committerSteve French <stfrench@microsoft.com>
Thu, 6 Feb 2020 00:24:19 +0000 (18:24 -0600)
commitf2bf09e97b47c7b13e8a918f560f6082e9bc8f8a
treed8cf7657f023c69359dbc58831778108e75c51eb
parentd6fd41905ec577851734623fb905b1763801f5ef
cifs: Add tracepoints for errors on flush or fsync

Makes it easier to debug errors on writeback that happen later,
and are being returned on flush or fsync

For example:
  writetest-17829 [002] .... 13583.407859: cifs_flush_err: ino=90 rc=-28

Signed-off-by: Steve French <stfrench@microsoft.com>
fs/cifs/file.c
fs/cifs/trace.h