Re: [PATCH 2/2] ipc: semaphores: do not hold ipc lock more than necessary
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- Subject: Re: [PATCH 2/2] ipc: semaphores: do not hold ipc lock more than necessary
- From: Michel Lespinasse <walken@xxxxxxxxxx>
- Date: Sat, 2 Mar 2013 12:41:28 +0800
- Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Rik van Riel <riel@xxxxxxxxxx>, "Vinod, Chegu" <chegu_vinod@xxxxxx>, "Low, Jason" <jason.low2@xxxxxx>, linux-tip-commits@xxxxxxxxxxxxxxx, Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, aquini@xxxxxxxxxx, Ingo Molnar <mingo@xxxxxxxxxx>, Larry Woodman <lwoodman@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>
- In-reply-to: <1362183404.3420.25.camel@buesod1.americas.hpqcorp.net>
On Sat, Mar 2, 2013 at 8:16 AM, Davidlohr Bueso <davidlohr.bueso@xxxxxx> wrote:
> Instead of holding the ipc lock for permissions and security
> checks, among others, only acquire it when necessary.
>
> Signed-off-by: Davidlohr Bueso <davidlohr.bueso@xxxxxx>
You got some really great test results on this; I think they deserve
to be mentioned in the commit message.
Code looks fine to me otherwise, but I only had a quick look.
Nice work!
Acked-by: Michel Lespinasse <walken@xxxxxxxxxx>
--
Michel "Walken" Lespinasse
A program is never fully debugged until the last user dies.
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