lkml.org 
[lkml]   [2004]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC,PATCH] use nonatomic bitops for cpumask_t
Manfred Spraul wrote:

> Hi,
>
> I'm checking for callers that rely on the atomicity of the bitops, but
> so far everyone has it's own locks.

One exception is the x86 tlb flush code, thus my patch is wrong. We
could add nonatomic __cpu_set and __cpu_clear bitops, but I'm not sure
if it's worth the effort, cpu bitops aren't that common
(kernel/rcupdate.c and balance_node could use the __ versions).

Sorry for the noise (and don't check who wrote the x86 tlb flush code)
--
Manfred

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:03    [W:0.037 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site