From: Jan Kara <jack@suse.cz>
Date: Tue, 4 Jun 2013 18:27:38 +0000 (-0400)
Subject: ext4: protect extent conversion after DIO with i_dio_count
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~83^2~40
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e83403959fddb6d90e8c5e54bbce3110d0c82165;p=pandora-kernel.git

ext4: protect extent conversion after DIO with i_dio_count

Make sure extent conversion after DIO happens while i_dio_count is
still elevated so that inode_dio_wait() waits until extent conversion
is done.  This removes the need for explicit waiting for extent
conversion in some cases.

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

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