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From: Lai Jiangshan <laijs@cn.fujitsu.com>
To: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
	Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
	John Kacur <jkacur@redhat.com>,
	James Bottomley <James.Bottomley@suse.de>,
	"Rafael J. Wysocki" <rjw@sisk.pl>,
	Darren Hart <dvhart@linux.intel.com>,
	Namhyung Kim <namhyung@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/4] plist: shrink struct plist_head
Date: Thu, 23 Dec 2010 10:13:30 +0800	[thread overview]
Message-ID: <4D12B04A.3030705@cn.fujitsu.com> (raw)
In-Reply-To: <4D107982.9090700@cn.fujitsu.com>

On 12/21/2010 05:55 PM, Lai Jiangshan wrote:
> struct plist_head is big, and the field prio_list
> in the struct plist_head is used seldom. So it can be
> removed and we use the first plist_node's prio_list
> when needed.
> 
> The size of struct plist_head is decreased a half after shinked.
> The size of struct rtmutex and struct task_struct are
> also decreased after struct plist_head shrinked.
> 
> Signed-off-by:  Lai Jiangshan <laijs@cn.fujitsu.com>
> ---
>  include/linux/plist.h |   47 ++++++++++++++++++++++---------------------
>  lib/plist.c           |   54 ++++++++++++++++++++++++++++++++------------------
>  2 files changed, 59 insertions(+), 42 deletions(-)
> 

Hi, Ingo, Thomas, Steven,

Any comments about this patch?

Thanks,
Lai

  reply	other threads:[~2010-12-23  2:11 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-21  9:55 [PATCH 3/4] plist: shrink struct plist_head Lai Jiangshan
2010-12-23  2:13 ` Lai Jiangshan [this message]
2010-12-23 15:09   ` Steven Rostedt
2011-03-12 10:58 ` [tip:core/futexes] plist: Shrink " tip-bot for Lai Jiangshan
  -- strict thread matches above, loose matches on Subject: below --
2011-03-12  3:14 [PATCH 0/4] futex,plist: updates Steven Rostedt
2011-03-12  3:14 ` [PATCH 3/4] plist: Shrink struct plist_head Steven Rostedt

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