From: Jeff Mahoney <jeffm@suse.com>
Date: Tue, 4 Oct 2011 03:22:32 +0000 (-0400)
Subject: btrfs: Catch locking failures in {set,clear,convert}_extent_bit
X-Git-Tag: v3.4-rc1~22^2~13^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c2d904e086b6f707b73bf065e4d18ded4b86ae9e;p=pandora-kernel.git

btrfs: Catch locking failures in {set,clear,convert}_extent_bit

The *_state functions can only return 0 or -EEXIST. This patch addresses
the cases where those functions returning -EEXIST represent a locking
failure. It handles them by panicking with an appropriate error message.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
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