Jaegeuk Kim 1036d3ea7a f2fs: don't set RO when shutting down f2fs
[ Upstream commit 3bdb7f161697e2d5123b89fe1778ef17a44858e7 ]

Shutdown does not check the error of thaw_super due to readonly, which
causes a deadlock like below.

f2fs_ioc_shutdown(F2FS_GOING_DOWN_FULLSYNC)        issue_discard_thread
 - bdev_freeze
  - freeze_super
 - f2fs_stop_checkpoint()
  - f2fs_handle_critical_error                     - sb_start_write
    - set RO                                         - waiting
 - bdev_thaw
  - thaw_super_locked
    - return -EINVAL, if sb_rdonly()
 - f2fs_stop_discard_thread
  -> wait for kthread_stop(discard_thread);

Reported-by: "Light Hsieh (謝明燈)" <Light.Hsieh@mediatek.com>
Reviewed-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-27 13:49:04 +02:00
..
2023-01-19 09:24:27 +01:00
2024-06-12 11:12:29 +02:00
2023-09-02 15:37:59 -07:00
2023-08-02 09:13:09 -06:00
2021-08-23 10:25:51 -07:00
2023-02-27 16:18:51 -08:00
2023-06-26 06:07:10 -07:00