From: Kalpak Shah <kalpak.shah@sun.com>
Date: Sun, 16 Nov 2008 16:05:31 +0000 (-0500)
Subject: ext4: fix xattr deadlock
X-Git-Tag: v2.6.27.8~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8aa3d3c9f2a98a7d30f6aca9fa7667105ba8eebe;p=pandora-kernel.git

ext4: fix xattr deadlock

(cherry picked from commit 4d20c685fa365766a8f13584b4c8178a15ab7103)

ext4_xattr_set_handle() eventually ends up calling
ext4_mark_inode_dirty() which tries to expand the inode by shifting
the EAs.  This leads to the xattr_sem being downed again and leading
to a deadlock.

This patch makes sure that if ext4_xattr_set_handle() is in the
call-chain, ext4_mark_inode_dirty() will not expand the inode.

Signed-off-by: Kalpak Shah <kalpak.shah@sun.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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