From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Thu, 11 Feb 2010 12:13:10 +0000 (+0100)
Subject: reiserfs: Fix softlockup while waiting on an inode
X-Git-Tag: v2.6.33~48^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=175359f89df39f4faed663c8cfd6ee0222d2fa1e;p=pandora-kernel.git

reiserfs: Fix softlockup while waiting on an inode

When we wait for an inode through reiserfs_iget(), we hold
the reiserfs lock. And waiting for an inode may imply waiting
for its writeback. But the inode writeback path may also require
the reiserfs lock, which leads to a deadlock.

We just need to release the reiserfs lock from reiserfs_iget()
to fix this.

Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Cc: Chris Mason <chris.mason@oracle.com>
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