lkml.org 
[lkml]   [2009]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [this_cpu_xx V5 19/19] SLUB: Experimental new fastpath w/o interrupt disable
On Mon, 12 Oct 2009, Mathieu Desnoyers wrote:

> local_irq_enable();
> preempt_enable(); <- barrier()
>
> In the first scenario, the compiler barrier is at the beginning of the
> slow path function, which should impose less restrictions on the compiler
> optimizations.

Again: The next statement is a call to a function that calls the page
allocator. Its one call vs two for me. Plus the flow of things is much
cleaner and less obfuscated.





\
 
 \ /
  Last update: 2009-10-12 18:15    [W:0.327 / U:0.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site