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authorHuaisheng Ye <yehs1@lenovo.com>2020-06-12 18:59:11 +0300
committerMike Snitzer <snitzer@redhat.com>2020-06-17 19:25:41 +0300
commit39495b12ef1cf602e6abd350dce2ef4199906531 (patch)
tree3d3ce61f0cd9628d08a41d361bf64a958ee15e17 /drivers/md/dm-writecache.c
parent7b2377486767503d47265e4d487a63c651f6b55d (diff)
downloadlinux-39495b12ef1cf602e6abd350dce2ef4199906531.tar.xz
dm writecache: correct uncommitted_block when discarding uncommitted entry
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>
Diffstat (limited to 'drivers/md/dm-writecache.c')
-rw-r--r--drivers/md/dm-writecache.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index 74f3c506f084..ddff5527dbdf 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -853,6 +853,8 @@ 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);
}