kernel/linux.git/include/linux/jbd2.h, branch v6.19.11

jbd2: use a per-journal lock_class_key for jbd2_trans_commit_key

2025-11-13T13:34:39+00:00

syzbot is reporting possibility of deadlock due to sharing lock_class_key for jbd2_handle across ext4 and ocfs2. But this is a false positive, for one disk partition can't have two filesystems at the same time. Reported-by: syzbot+6e493c165d26d6fcbf72@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=6e493c165d26d6fcbf72 Signed-off-by: Tetsuo Handa Tested-by: syzbot+6e493c165d26d6fcbf72@syzkaller.appspotmail.com Reviewed-by: Jan Kara Message-ID: <987110fc-5470-457a-a218-d286a09dd82f@I-love.SAKURA.ne.jp> Signed-off-by: Theodore Ts'o Cc: stable@kernel.org

jbd2: remove journal_t argument from jbd2_chksum()

2025-05-20T14:31:12+00:00

Since jbd2_chksum() no longer uses its journal_t argument, remove it. Signed-off-by: Eric Biggers Reviewed-by: Baokun Li Link: https://patch.msgid.link/20250513053809.699974-4-ebiggers@kernel.org Signed-off-by: Theodore Ts'o

ext4/jbd2: convert jbd2_journal_blocks_per_page() to support large folio

2025-05-20T14:31:12+00:00

jbd2_journal_blocks_per_page() returns the number of blocks in a single page. Rename it to jbd2_journal_blocks_per_folio() and make it returns the number of blocks in the largest folio, preparing for the calculation of journal credits blocks when allocating blocks within a large folio in the writeback path. Signed-off-by: Zhang Yi Link: https://patch.msgid.link/20250512063319.3539411-5-yi.zhang@huaweicloud.com Signed-off-by: Theodore Ts'o

jbd2: remove jbd2_journal_unfile_buffer()

2025-03-18T04:15:25+00:00

Since the function jbd2_journal_unfile_buffer() is no longer called anywhere after commit e5a120aeb57f ("jbd2: remove journal_head from descriptor buffers"), so let's remove it. Signed-off-by: Baokun Li Reviewed-by: Zhang Yi Reviewed-by: Jan Kara Link: https://patch.msgid.link/20250306063240.157884-1-libaokun@huaweicloud.com Signed-off-by: Theodore Ts'o

jbd2: remove redundant function jbd2_journal_has_csum_v2or3_feature

2025-03-17T15:19:41+00:00

Since commit dd348f054b24 ("jbd2: switch to using the crc32c library"), jbd2_journal_has_csum_v2or3() and jbd2_journal_has_csum_v2or3_feature() are the same. Remove jbd2_journal_has_csum_v2or3_feature() and just keep jbd2_journal_has_csum_v2or3(). Signed-off-by: Eric Biggers Reviewed-by: Darrick J. Wong Link: https://patch.msgid.link/20250207031424.42755-1-ebiggers@kernel.org Signed-off-by: Theodore Ts'o

jbd2: remove unused return value of jbd2_journal_cancel_revoke

2025-03-13T14:41:21+00:00

Remove unused return value of jbd2_journal_cancel_revoke. Signed-off-by: Kemeng Shi Reviewed-by: Jan Kara Reviewed-by: Zhang Yi Link: https://patch.msgid.link/20250123155014.2097920-3-shikemeng@huaweicloud.com Signed-off-by: Theodore Ts'o

jbd2: remove unused h_jdata flag of handle

2025-03-13T14:41:21+00:00

Flag h_jdata is not used, just remove it. Signed-off-by: Kemeng Shi Reviewed-by: Jan Kara Reviewed-by: Zhang Yi Link: https://patch.msgid.link/20250123155014.2097920-2-shikemeng@huaweicloud.com Signed-off-by: Theodore Ts'o

jbd2: drop JBD2_ABORT_ON_SYNCDATA_ERR

2025-03-13T14:08:09+00:00

Since ext4's data_err=abort mode doesn't depend on JBD2_ABORT_ON_SYNCDATA_ERR anymore, and nobody else uses it, we can drop it and only warn in jbd2 as it used to be long ago. Suggested-by: Jan Kara Signed-off-by: Baokun Li Reviewed-by: Zhang Yi Link: https://patch.msgid.link/20250122110533.4116662-7-libaokun@huaweicloud.com Signed-off-by: Theodore Ts'o

jbd2: Avoid long replay times due to high number or revoke blocks

2025-02-13T05:19:10+00:00

Some users are reporting journal replay takes a long time when there is excessive number of revoke blocks in the journal. Reported times are like: 1048576 records - 95 seconds 2097152 records - 580 seconds The problem is that hash chains in the revoke table gets excessively long in these cases. Fix the problem by sizing the revoke table appropriately before the revoke pass. Thanks to Alexey Zhuravlev for benchmarking the patch with large numbers of revoke blocks [1]. [1] https://lore.kernel.org/all/20250113183107.7bfef7b6@x390.bzzz77.ru Signed-off-by: Jan Kara Reviewed-by: Andreas Dilger Reviewed-by: Zhang Yi Link: https://patch.msgid.link/20250121140925.17231-2-jack@suse.cz Signed-off-by: Theodore Ts'o

jbd2: remove unused transaction->t_private_list

2025-02-10T12:48:24+00:00

After we remove ext4 journal callback, transaction->t_private_list is not used anymore. Just remove unused transaction->t_private_list. Signed-off-by: Kemeng Shi Reviewed-by: Zhang Yi Link: https://patch.msgid.link/20241218145414.1422946-3-shikemeng@huaweicloud.com Signed-off-by: Theodore Ts'o