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linux/Documentation/admin-guide/device-mapper/writecache.rst
Mikulas Patocka e3a35d0340 dm writecache: add event counters 
Add 10 counters for various events (hit, miss, etc) and export them in
the status line (accessed from userspace with "dmsetup status"). Also
add a message "clear_stats" that resets these counters.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2021-08-10 13:27:49 -04:00

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