According to discussions in [1], this patchset adds errseq in journal to enable JDB2 detecting meatadata writeback error of fs dev. Then, orginal checking mechanism could be removed. [1] https://lore.kernel.org/all/20230908124317.2955345-1-chengzhihao1@xxxxxxxxxx/T/ v1->v2: Fix some misspelling words. Patch 1: "fallen on" -> "written to" Patch 4: "can detects" -> "can detect" Zhihao Cheng (5): jbd2: Add errseq to detect client fs's bdev writeback error jbd2: Replace journal state flag by checking errseq jbd2: Remove unused 'JBD2_CHECKPOINT_IO_ERROR' and 'j_atomic_flags' jbd2: Abort journal when detecting metadata writeback error of fs dev ext4: Move ext4_check_bdev_write_error() into nojournal mode fs/ext4/ext4_jbd2.c | 5 ++--- fs/jbd2/checkpoint.c | 11 ----------- fs/jbd2/journal.c | 11 ++++++----- fs/jbd2/recovery.c | 7 +------ fs/jbd2/transaction.c | 14 ++++++++++++++ include/linux/jbd2.h | 37 ++++++++++++++++++++++++++----------- 6 files changed, 49 insertions(+), 36 deletions(-) -- 2.39.2