lkml.org 
[lkml]   [2007]   [Aug]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/1] hotplug cpu: migrate a task within its cpuset
On 08/24, Cliff Wickman wrote:
> --- linus.070821.orig/kernel/cpuset.c
> +++ linus.070821/kernel/cpuset.c
> @@ -2333,6 +2333,25 @@ cpumask_t cpuset_cpus_allowed(struct tas
> return mask;
> }
>
> +/**
> + * cpuset_cpus_allowed_lock - return cpus_allowed mask from a tasks cpuset.
> + * @tsk: pointer to task_struct from which to obtain cpuset->cpus_allowed.
> + *
> + * Description: Same as cpuset_cpus_allowed, but called with callback_mutex
> + * already held.
> + **/
> +
> +cpumask_t cpuset_cpus_allowed_lock(struct task_struct *tsk)
> +{
> + cpumask_t mask;
> +
> + task_lock(tsk);
> + guarantee_online_cpus(tsk->cpuset, &mask);
> + task_unlock(tsk);
> +
> + return mask;
> +}

Very minor nit, perhaps it makes sense to use this function in cpuset_cpus_allowed()
to avoid the code duplication. Its name is a bit confusing, imho. How about
cpuset_cpus_allowed_locked() or __cpuset_cpus_allowed() ?

Oleg.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-08-25 11:59    [W:0.054 / U:0.500 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site