From: Davide Libenzi <davidel@xmailserver.org>
Date: Wed, 17 Oct 2007 06:30:19 +0000 (-0700)
Subject: anon-inodes use open coded atomic_inc for the shared inode
X-Git-Tag: v2.6.24-rc1~596
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=96fdc72ddfe8aa3eb1f51e78cc13babefbf26dda;p=pandora-kernel.git

anon-inodes use open coded atomic_inc for the shared inode

Since we know the shared inode count is always >0, we can avoid igrab()
and use an open coded atomic_inc().

This also fixes a bug noticed by Yan Zheng <yanzheng@21cn.com>: were checking
for an IS_ERR() return from igrab(), but it actually returns NULL on error.

Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Yan Zheng <yanzheng@21cn.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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