Zhang Yi fcf37549ae jbd2: ensure abort the journal if detect IO error when writing original buffer back ... Although we merged c044f3d836 ("jbd2: abort journal if free a async write error metadata buffer"), there is a race between jbd2_journal_try_to_free_buffers() and jbd2_journal_destroy(), so the jbd2_log_do_checkpoint() may still fail to detect the buffer write io error flag which may lead to filesystem inconsistency. jbd2_journal_try_to_free_buffers() ext4_put_super() jbd2_journal_destroy() __jbd2_journal_remove_checkpoint() detect buffer write error jbd2_log_do_checkpoint() jbd2_cleanup_journal_tail() <--- lead to inconsistency jbd2_journal_abort() Fix this issue by introducing a new atomic flag which only have one JBD2_CHECKPOINT_IO_ERROR bit now, and set it in __jbd2_journal_remove_checkpoint() when freeing a checkpoint buffer which has write_io_error flag. Then jbd2_journal_destroy() will detect this mark and abort the journal to prevent updating log tail. Signed-off-by: Zhang Yi <yi.zhang@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20210610112440.3438139-3-yi.zhang@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2021-06-24 10:33:49 -04:00
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checkpoint.c	jbd2: ensure abort the journal if detect IO error when writing original buffer back	2021-06-24 10:33:49 -04:00
commit.c	block: use an on-stack bio in blkdev_issue_flush	2021-01-27 09:51:48 -07:00
journal.c	jbd2: ensure abort the journal if detect IO error when writing original buffer back	2021-06-24 10:33:49 -04:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
recovery.c	ext4: fix debug format string warning	2021-04-09 23:32:16 -04:00
revoke.c	jbd2: Reserve space for revoke descriptor blocks	2019-11-05 16:00:48 -05:00
transaction.c	ext4: annotate data race in jbd2_journal_dirty_metadata()	2021-04-09 21:19:33 -04:00