From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Tue, 21 Dec 2010 09:55:14 +0000 (+0800)
Subject: plist: Shrink struct plist_head
X-Git-Tag: v2.6.39-rc1~512^2~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bf6a9b8336ba12672755c2ae898b0abe42c7a5ac;p=pandora-kernel.git

plist: Shrink struct plist_head

struct plist_head is used in struct task_struct as well as struct
rtmutex. If we can make it smaller, it will also make these structures
smaller as well.

The field prio_list in struct plist_head is seldom used and we can get
its information from the plist_nodes. Removing this field will decrease
the size of plist_head by half.

Signed-off-by:  Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <4D107982.9090700@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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