lkml.org 
[lkml]   [2013]   [Oct]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/5] percpu_ida: Move waking up waiters out of atomic contexts
On Mon, Oct 28, 2013 at 11:05:25AM +0100, Alexander Gordeev wrote:
> Currently percpu_ida_free() waikes up waiters always with local
> interrupts disabled and sometimes with pool->lock held. Yet, it
> does not appear there is any reason why it could not be done out
> of these atomic contexts.

This should be a noticable performance boost, nested irqsave/restore is painful.

Acked-by: Kent Overstreet <kmo@daterainc.com>


\
 
 \ /
  Last update: 2013-10-28 22:41    [W:0.049 / U:1.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site