kernel_optimize_test/fs/jbd2
Jan Kara 2143c1965a jbd2: speedup jbd2_journal_dirty_metadata()
It is often the case that we mark buffer as having dirty metadata when
the buffer is already in that state (frequent for bitmaps, inode table
blocks, superblock). Thus it is unnecessary to contend on grabbing
journal head reference and bh_state lock. Avoid that by checking whether
any modification to the buffer is needed before grabbing any locks or
references.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-06-20 21:44:17 -04:00
..
checkpoint.c jbd2: fix ocfs2 corrupt when updating journal superblock fails 2015-06-15 14:36:01 -04:00
commit.c jbd2: fix descriptor block size handling errors with journal_csum 2014-08-28 22:22:29 -04:00
journal.c jbd2: get rid of open coded allocation retry loop 2015-06-15 15:45:58 -04:00
Kconfig jbd2: remove debug dependency on debug_fs and update Kconfig help text 2013-06-12 23:07:51 -04:00
Makefile
recovery.c jbd2: fix r_count overflows leading to buffer overflow in journal recovery 2015-05-14 19:11:50 -04:00
revoke.c jbd2: get rid of open coded allocation retry loop 2015-06-15 15:45:58 -04:00
transaction.c jbd2: speedup jbd2_journal_dirty_metadata() 2015-06-20 21:44:17 -04:00