lkml.org 
[lkml]   [2010]   [Apr]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] rcu: don't call rcu_preempt_note_context_switch() in rcu_check_callbacks()
Paul E. McKenney wrote:
> Possibly by moving the clearing of RCU_READ_UNLOCK_NEED_QS to
> rcu_preempt_check_callbacks()

current rcu_preempt_check_callbacks() already has code to
clear RCU_READ_UNLOCK_NEED_QS.

> -- or to rcu_preempt_qs(). The latter is in
> some sense cleaner, but higher overhead and probably unnecessary. Hmmm...
> Alternatively, require that all callers to rcu_preempt_qs() disable
> irqs. This affects only one callsite, which has a local_irq_disable()
> immediately following anyway. ;-)
>
> Thanx, Paul



\
 
 \ /
  Last update: 2010-04-01 09:27    [W:0.041 / U:2.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site