Jan Kara f5113effc2 jbd2: don't create journal_head for temporary journal buffers ... When writing metadata to the journal, we create temporary buffer heads for that task. We also attach journal heads to these buffer heads but the only purpose of the journal heads is to keep buffers linked in transaction's BJ_IO list. We remove the need for journal heads by reusing buffer_head's b_assoc_buffers list for that purpose. Also since BJ_IO list is just a temporary list for transaction commit, we use a private list in jbd2_journal_commit_transaction() for that thus removing BJ_IO list from transaction completely. Reviewed-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>		2013-06-04 12:01:45 -04:00
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checkpoint.c	jbd2: don't create journal_head for temporary journal buffers	2013-06-04 12:01:45 -04:00
commit.c	jbd2: don't create journal_head for temporary journal buffers	2013-06-04 12:01:45 -04:00
journal.c	jbd2: don't create journal_head for temporary journal buffers	2013-06-04 12:01:45 -04:00
Kconfig	jbd2: Grab a reference to the crc32c driver if necessary	2012-05-27 07:50:56 -04:00
Makefile
recovery.c	jbd2: fix block tag checksum verification brokenness	2013-05-28 07:31:59 -04:00
revoke.c	jbd2: checksum revocation blocks	2012-05-27 08:08:24 -04:00
transaction.c	jbd2: don't create journal_head for temporary journal buffers	2013-06-04 12:01:45 -04:00