From: Josef Bacik <josef@redhat.com>
Date: Tue, 25 Jan 2011 22:11:54 +0000 (+0000)
Subject: Btrfs: handle no memory properly in prepare_pages
X-Git-Tag: v2.6.38-rc4~2^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7adf5dfbb3af65a00e20b3ead224c3a1b40e4ec4;p=pandora-kernel.git

Btrfs: handle no memory properly in prepare_pages

Instead of doing a BUG_ON(1) in prepare_pages if grab_cache_page() fails, just
loop through the pages we've already grabbed and unlock and release them, then
return -ENOMEM like we should.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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