From: Davide Italiano <dccitaliano@gmail.com>
Date: Sun, 3 May 2015 03:21:15 +0000 (-0400)
Subject: ext4: move check under lock scope to close a race.
X-Git-Tag: omap-for-v4.2/wakeirq-drivers-v2~36^2~1
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=280227a75b56;p=pandora-kernel.git

ext4: move check under lock scope to close a race.

fallocate() checks that the file is extent-based and returns
EOPNOTSUPP in case is not. Other tasks can convert from and to
indirect and extent so it's safe to check only after grabbing
the inode mutex.

Signed-off-by: Davide Italiano <dccitaliano@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
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