lkml.org 
[lkml]   [2009]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/3] resend, cpuset/hotplug fixes
From
Date
On Fri, 2009-09-11 at 15:15 +0800, Lai Jiangshan wrote:
> One other minor thing:
> Oleg's patch may introduce a trouble in PREEEMPT_RT tree, because
> spinlock in RT is also mutex. Likely I'm wrong.

But they have priority-inheritance, hence you cannot create a deadlock
through preemption. If the kstopmachine thread blocks on a mutex, the
owner gets boosted to kstopmachine's prio and runs to completion, after
that kstopmachine continues.



\
 
 \ /
  Last update: 2009-09-11 10:33    [W:0.169 / U:0.156 seconds]
©2003-2014 Jasper Spaans. Advertise on this site