tree d53fc9a2c50c0fda4f5eda9507ca5cb824e6ed0c
parent 7b001d6a0c0c7b92e989c2c3b1d8e151f1df1acc
author Jan Kara <jack@suse.cz> 1365739422 -0400
committer Theodore Ts'o <tytso@mit.edu> 1365739422 -0400

jbd2: reduce journal_head size

Remove unused t_cow_tid field (ext4 copy-on-write support doesn't seem
to be happening) and change b_modified and b_jlist to bitfields thus
saving 8 bytes in the structure.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>