From: David Sterba <dsterba@suse.cz>
Date: Fri, 22 Mar 2013 18:12:51 +0000 (+0000)
Subject: btrfs: make subvol creation/deletion killable in the early stages
X-Git-Tag: v3.10-rc1~31^2~84
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c50c9b89f1179237e0c0afb399432924058e756;p=pandora-kernel.git

btrfs: make subvol creation/deletion killable in the early stages

The subvolume ioctls block on the parent directory mutex that can be
held by other concurrent snapshot activity for a long time. Give the
user at least some chance to get out of this situation by allowing
to send a kill signal.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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