From: Kalpak Shah <kalpak.shah@sun.com>
Date: Thu, 9 Oct 2008 03:21:54 +0000 (-0400)
Subject: ext4: fix xattr deadlock
X-Git-Tag: v2.6.28-rc1~709^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d20c685fa365766a8f13584b4c8178a15ab7103;p=pandora-kernel.git

ext4: fix xattr deadlock

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>
---

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