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| author | Huaisheng Ye <yehs1@lenovo.com> | 2020-06-12 23:59:11 +0800 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2020-06-30 15:37:12 -0400 |
| commit | a51e71cbf6e64b170ef01a78f94df01cb46acb9b (patch) | |
| tree | 7a73285c154dbb80c352659cc3ff3d0f7f9fb363 | |
| parent | de1d70dad6f22b5d02c04e4d127463b51c727c2c (diff) | |
| download | goldfish-a51e71cbf6e64b170ef01a78f94df01cb46acb9b.tar.gz | |
dm writecache: correct uncommitted_block when discarding uncommitted entry
commit 39495b12ef1cf602e6abd350dce2ef4199906531 upstream.
When uncommitted entry has been discarded, correct wc->uncommitted_block
for getting the exact number.
Fixes: 48debafe4f2fe ("dm: add writecache target")
Cc: stable@vger.kernel.org
Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>
Acked-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/md/dm-writecache.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c index 0d6ca723257f..64d75bbefda1 100644 --- a/drivers/md/dm-writecache.c +++ b/drivers/md/dm-writecache.c @@ -805,6 +805,8 @@ static void writecache_discard(struct dm_writecache *wc, sector_t start, sector_ writecache_wait_for_ios(wc, WRITE); discarded_something = true; } + if (!writecache_entry_is_committed(wc, e)) + wc->uncommitted_blocks--; writecache_free_entry(wc, e); } |