From: Maxim <maxim.patlasov@gmail.com>
Date: Mon, 14 Mar 2011 13:19:21 +0000 (+0000)
Subject: GFS2: Adding missing unlock_page()
X-Git-Tag: v2.6.39-rc1~488^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c474f7bc1ef70bc05ce486e7e7e524124122de8;p=pandora-kernel.git

GFS2: Adding missing unlock_page()

gfs2_write_begin() calls grab_cache_page_write_begin() that returns *locked*
page. Correspondent error-handling path lacks for unlock_page() call:

> out:
> 	if (error == 0)
> 		return 0;
>
> 	page_cache_release(page);

The whole system hangs if gfs2_unstuff_dinode() called from gfs2_write_begin()
failed for some reason.

Reported-by: Maxim <maxim.patlasov@gmail.com>
Signed-off-by: Maxim <maxim.patlasov@gmail.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---

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