From: Cheng Renquan <crquan@gmail.com>
Date: Thu, 8 Jan 2009 21:31:08 +0000 (+1100)
Subject: md: use list_for_each_entry macro directly
X-Git-Tag: v2.6.29-rc1~47^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=159ec1fc060ab22b157a62364045f5e98749c4d3;p=pandora-kernel.git

md: use list_for_each_entry macro directly

The rdev_for_each macro defined in <linux/raid/md_k.h> is identical to
list_for_each_entry_safe, from <linux/list.h>, it should be defined to
use list_for_each_entry_safe, instead of reinventing the wheel.

But some calls to each_entry_safe don't really need a safe version,
just a direct list_for_each_entry is enough, this could save a temp
variable (tmp) in every function that used rdev_for_each.

In this patch, most rdev_for_each loops are replaced by list_for_each_entry,
totally save many tmp vars; and only in the other situations that will call
list_del to delete an entry, the safe version is used.

Signed-off-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

Reading git-diff-tree failed