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xfs: track usage statistics of online fsck

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Track the usage, outcomes, and run times of the online fsck code, and
report these values via debugfs.  The columns in the file are:

 * scrubber name

 * number of scrub invocations
 * clean objects found
 * corruptions found
 * optimizations found
 * cross referencing failures
 * inconsistencies found during cross referencing
 * incomplete scrubs
 * warnings
 * number of time scrub had to retry
 * cumulative amount of time spent scrubbing (microseconds)

 * number of repair inovcations
 * successfully repaired objects
 * cumuluative amount of time spent repairing (microseconds)

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2023-08-10 07:48:07 -07:00
commit d7a74cad8f
10 changed files with 535 additions and 9 deletions
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