lkml.org 
[lkml]   [2017]   [Jun]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH RFC 02/26] task_work: Replace spin_unlock_wait() with lock/unlock pair
On 06/29, Paul E. McKenney wrote:
>
> --- a/kernel/task_work.c
> +++ b/kernel/task_work.c
> @@ -109,7 +109,8 @@ void task_work_run(void)
> * the first entry == work, cmpxchg(task_works) should
> * fail, but it can play with *work and other entries.
> */
> - raw_spin_unlock_wait(&task->pi_lock);
> + raw_spin_lock(&task->pi_lock);
> + raw_spin_unlock(&task->pi_lock);

Well, bit the you need spin_lock_irq(). And this is one of the reasons
why I personally think unlock_wait have some sense...

Oleg.

\
 
 \ /
  Last update: 2017-06-30 23:11    [W:0.399 / U:3.372 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site