lkml.org 
[lkml]   [2009]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Question about x86/mm/gup.c's use of disabled interrupts
Paul E. McKenney wrote:
>> Ah, interesting. So disabling interrupts prevents the RCU free from
>> happening, and non-atomic pte fetching is a non-issue. So it doesn't
>> address the PAE side of the problem.
>>
>
> This would be rcu_sched, correct?
>

I guess? Whatever it is that ends up calling all the rcu callbacks
after the idle. A cpu with disabled interrupts can't go through idle,
right? Or is there an explicit way to hold off rcu?

J


\
 
 \ /
  Last update: 2009-03-20 16:41    [W:0.072 / U:0.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site