btrfs: mark compressed range uptodate only if all bio succeed
authorGoldwyn Rodrigues <rgoldwyn@suse.com>
Mon, 2 Aug 2021 14:30:34 +0000 (09:30 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 8 Aug 2021 06:38:53 +0000 (08:38 +0200)
commit9fb9f0b59dbfd3e7d27f44a62b46eb75ea732e72
tree2f471f6994e24cf9e0ab231c6e7567ca13fd4b86
parent29bb8b3fc24fda91eecc1df462f055d60eab817f
btrfs: mark compressed range uptodate only if all bio succeed

[ Upstream commit 240246f6b913b0c23733cfd2def1d283f8cc9bbe ]

In compression write endio sequence, the range which the compressed_bio
writes is marked as uptodate if the last bio of the compressed (sub)bios
is completed successfully. There could be previous bio which may
have failed which is recorded in cb->errors.

Set the writeback range as uptodate only if cb->errors is zero, as opposed
to checking only the last bio's status.

Backporting notes: in all versions up to 4.4 the last argument is always
replaced by "!cb->errors".

CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
fs/btrfs/compression.c