btrfs: mark compressed range uptodate only if all bio succeed
authorGoldwyn Rodrigues <rgoldwyn@suse.de>
Mon, 2 Aug 2021 14:31:37 +0000 (09:31 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 8 Aug 2021 06:53:29 +0000 (08:53 +0200)
commitbc75bb210d9d7e0e791e51cfbb17e5624f7a0d57
treeb6c82cce5e60cd4a3abf6272ba726f68e657e325
parent94cb1fed447ac8d328a8b50f9583df4ce70793e2
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