This is a note to let you know that I've just added the patch titled
dm writecache: correct uncommitted_block when discarding uncommitted entry
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dm-writecache-correct-uncommitted_block-when-discarding-uncommitted-entry.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 39495b12ef1cf602e6abd350dce2ef4199906531 Mon Sep 17 00:00:00 2001
From: Huaisheng Ye <yehs1@xxxxxxxxxx>
Date: Fri, 12 Jun 2020 23:59:11 +0800
Subject: dm writecache: correct uncommitted_block when discarding uncommitted entry
From: Huaisheng Ye <yehs1@xxxxxxxxxx>
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@xxxxxxxxxxxxxxx
Signed-off-by: Huaisheng Ye <yehs1@xxxxxxxxxx>
Acked-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Signed-off-by: Mike Snitzer <snitzer@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/dm-writecache.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -805,6 +805,8 @@ static void writecache_discard(struct dm
writecache_wait_for_ios(wc, WRITE);
discarded_something = true;
}
+ if (!writecache_entry_is_committed(wc, e))
+ wc->uncommitted_blocks--;
writecache_free_entry(wc, e);
}
Patches currently in stable-queue which might be from yehs1@xxxxxxxxxx are
queue-5.4/dm-writecache-correct-uncommitted_block-when-discarding-uncommitted-entry.patch
