From: Tao Ma <boyu.mt@taobao.com>
Date: Mon, 10 Dec 2012 19:05:57 +0000 (-0500)
Subject: ext4: add delalloc support for inline data
X-Git-Tag: v3.8-rc1~89^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9c3569b50f12e47cc5e907b5e37e4a45c0c10b43;p=pandora-kernel.git

ext4: add delalloc support for inline data

For delayed allocation mode, we write to inline data if the file
is small enough. And in case of we write to some offset larger
than the inline size, the 1st page is dirtied, so that
ext4_da_writepages can handle the conversion. When the 1st page
is initialized with blocks, the inline part is removed.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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