From: Jan Kara <jack@suse.cz>
Date: Fri, 12 Apr 2013 04:03:42 +0000 (-0400)
Subject: jbd2: reduce journal_head size
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~83^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ae4647fb7654676fc44a97e86eb35f9f06b99f66;p=pandora-kernel.git

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>
---

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