tree 1022097e97679f5fc13fdef5fd5893cdfdd35dcf
parent 62a1391ddd6fbe82fc02154dc760bcc5cbc9ef68
author Zheng Liu <wenqing.lz@taobao.com> 1341865769 -0400
committer Theodore Ts'o <tytso@mit.edu> 1341865769 -0400

ext4: split ext4_file_write into buffered IO and direct IO

ext4_file_dio_write is defined in order to split buffered IO and
direct IO in ext4.  This patch just refactor some stuff in write path.

CC: Tao Ma <tm@tao.ma>
CC: Eric Sandeen <sandeen@redhat.com>
CC: Robin Dong <hao.bigrat@gmail.com>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>