From: Theodore Ts'o <tytso@mit.edu>
Date: Mon, 18 May 2009 03:31:23 +0000 (-0400)
Subject: ext4: down i_data_sem only for read when walking tree for fiemap
X-Git-Tag: v2.6.31-rc1~396^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0568c518937ee3a9b6a94d18bae9c150fe5d6832;p=pandora-kernel.git

ext4: down i_data_sem only for read when walking tree for fiemap

Not sure why I put this in as down_write originally; all we are
doing is walking the tree, nothing will change under us and
concurrent reads should be no problem.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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