From: David Sterba <dsterba@suse.cz>
Date: Thu, 16 Jan 2014 14:50:22 +0000 (+0100)
Subject: btrfs: call permission checks earlier in ioctls and return EPERM
X-Git-Tag: v3.14-rc1~29^2~19
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bd60ea0fe947029df4b7b7aa9d6557baf2a5a138;p=pandora-kernel.git

btrfs: call permission checks earlier in ioctls and return EPERM

The owner and capability checks in IOC_SUBVOL_SETFLAGS and
SET_RECEIVED_SUBVOL should be called before any other checks are done.

Also unify the error code to EPERM.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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