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(parent: 7b001d6) | patch
jbd2: reduce journal_head size
authorJan Kara <jack@suse.cz>
Fri, 12 Apr 2013 04:03:42 +0000 (00:03 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Fri, 12 Apr 2013 04:03:42 +0000 (00:03 -0400)
commitae4647fb7654676fc44a97e86eb35f9f06b99f66
treed53fc9a2c50c0fda4f5eda9507ca5cb824e6ed0ctree | snapshot
parent7b001d6a0c0c7b92e989c2c3b1d8e151f1df1acccommit | diff
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>
include/linux/journal-head.h diff | blob | history
Andy's Linux Kernel repo