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dm writecache: count number of blocks discarded, not number of discard bios

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[ Upstream commit 2ee73ef60db4d79b9f9b8cd501e8188b5179449f ]

Change dm-writecache, so that it counts the number of blocks discarded
instead of the number of discard bios. Make it consistent with the
read and write statistics counters that were changed to count the
number of blocks instead of bios.

Fixes: e3a35d0340 ("dm writecache: add event counters")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mikulas Patocka
2022-07-11 16:31:52 -04:00
committed by Greg Kroah-Hartman
parent fc988f1ca2
commit a638fa9745
2 changed files with 2 additions and 2 deletions
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Documentation/admin-guide/device-mapper/writecache.rst
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@@ -87,7 +87,7 @@ Status:
11. the number of write blocks that are allocated in the cache
12. the number of write requests that are blocked on the freelist
13. the number of flush requests
14. the number of discard requests
14. the number of discarded blocks
Messages:
flush