Commit 22551da1 authored by Huaisheng Ye's avatar Huaisheng Ye Committed by Sasha Levin
Browse files

dm writecache: correct uncommitted_block when discarding uncommitted entry

commit 39495b12 upstream.

When uncommitted entry has been discarded, correct wc->uncommitted_block
for getting the exact number.

Fixes: 48debafe

 ("dm: add writecache target")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarHuaisheng Ye <yehs1@lenovo.com>
Acked-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 301cca2f
......@@ -857,6 +857,8 @@ 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);
}
......
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