lkml.org 
[lkml]   [2010]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 01/13] powerpc: Add rcu_read_lock() to gup_fast() implementation
From
Date
On Mon, 2010-04-12 at 20:43 -0700, Paul E. McKenney wrote:
> > So we might have to support the interrupt assumption, at least in some
> > form, with those guys...
>
> One way to make the interrupt assumption official is to use
> synchronize_sched() rather than synchronize_rcu().

Well, call_rcu_sched() then, because the current usage is to use
call_rcu() to free the page directories.

Paul, here is a call_rcu_sched() available in kernel/rcutree.c, but am I
right in reading that code that that would not be available for
preemptible RCU?




\
 
 \ /
  Last update: 2010-04-15 09:35    [W:0.151 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site