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From: Peter Zijlstra <peterz@infradead.org>
To: Daniel Walker <dwalker@mvista.com>
Cc: linux-kernel@vger.kernel.org, Ulrich Drepper <drepper@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Arjan van de Ven <arjan@infradead.org>
Subject: Re: [PATCH 2/5] futex: update prio on requeue
Date: Thu, 12 Jun 2008 07:22:43 +0200	[thread overview]
Message-ID: <1213248163.31518.73.camel@twins> (raw)
In-Reply-To: <20080611204917.136735991@mvista.com>

On Wed, 2008-06-11 at 13:49 -0700, Daniel Walker wrote:
> plain text document attachment (futex-update-prio-on-requeue.patch)
> Since the priority may have changed, the requeue is a good place to update
> the priority since we're already deleting and adding to a new list.
> 
> Signed-off-by: Daniel Walker <dwalker@mvista.com>
> 
> ---
>  kernel/futex.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> Index: linux-2.6.25/kernel/futex.c
> ===================================================================
> --- linux-2.6.25.orig/kernel/futex.c
> +++ linux-2.6.25/kernel/futex.c
> @@ -980,7 +980,10 @@ static int futex_requeue(u32 __user *uad
>  			 * requeue.
>  			 */
>  			if (likely(head1 != &hb2->chain)) {
> +				struct task_struct *task = this->task;
> +				int prio = min(task->normal_prio, MAX_RT_PRIO);

we want whitespace between var declarations and code

>  				plist_del(&this->list, &hb1->chain);
> +				plist_node_init(&this->list, prio);
>  				plist_add(&this->list, &hb2->chain);
>  				this->lock_ptr = &hb2->lock;
>  #ifdef CONFIG_DEBUG_PI_LIST
> 


  reply	other threads:[~2008-06-12  5:22 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-11 20:49 [PATCH 1/5] futex: checkpatch cleanup Daniel Walker
2008-06-11 20:49 ` [PATCH 2/5] futex: update prio on requeue Daniel Walker
2008-06-12  5:22   ` Peter Zijlstra [this message]
2008-06-11 20:49 ` [PATCH 3/5] mutex debug: add generic blocked_on usage Daniel Walker
2008-06-12  5:25   ` Peter Zijlstra
2008-06-12 13:21     ` Daniel Walker
2008-06-11 20:49 ` [PATCH 4/5] rtmutex: " Daniel Walker
2008-06-11 20:49 ` [PATCH 5/5] futex: fix miss ordered wakeups Daniel Walker
2008-06-12  6:07   ` Peter Zijlstra
2008-06-12 13:22     ` Daniel Walker
2008-06-12 13:57       ` Peter Zijlstra
2008-06-12 14:04         ` Daniel Walker
2008-06-12  8:56   ` Thomas Gleixner
2008-06-12 13:30     ` Daniel Walker
2008-06-12 13:33       ` Thomas Gleixner
2008-06-12 13:44         ` Daniel Walker
2008-06-12 15:24           ` Thomas Gleixner
2008-06-12 15:56             ` Daniel Walker
2008-06-12 19:55               ` Thomas Gleixner
2008-06-12 22:09                 ` Daniel Walker
2008-06-12 22:43                   ` Thomas Gleixner
2008-06-12 23:06                     ` Daniel Walker
2008-06-12 23:30                       ` Thomas Gleixner

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