tree 1eef0afe21a52267cf6e0f2438eeee50c47d04da
parent 47788043e5fa6415fa9ff0b4af217079b06815af
author zhangyi (F) <yi.zhang@huawei.com> 1592621666 +0800
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1599125064 +0200

jbd2: abort journal if free a async write error metadata buffer

[ Upstream commit c044f3d8360d2ecf831ba2cc9f08cf9fb2c699fb ]

If we free a metadata buffer which has been failed to async write out
in the background, the jbd2 checkpoint procedure will not detect this
failure in jbd2_log_do_checkpoint(), so it may lead to filesystem
inconsistency after cleanup journal tail. This patch abort the journal
if free a buffer has write_io_error flag to prevent potential further
inconsistency.

Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20200620025427.1756360-5-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>