lkml.org 
[lkml]   [2001]   [Oct]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: RFC: patch to allow lock-free traversal of lists with insertion
Date
>> Here are two patches.  The wmbdd patch has been modified to use
>> the lighter-weight SPARC instruction, as suggested by Dave Miller.
>> The rmbdd patch defines an rmbdd() primitive that is defined to be
>> rmb() on Alpha and a nop on other architectures. I believe this
>> rmbdd() primitive is what Richard is looking for.
>
>Surely we don't need both? If rmbdd exists, any code needing wmbdd
>is terminally broken?

One or the other. And at this point, it looks like rmbdd() (or
read_cache_depends()) is the mechanism of choice, given wmbdd()'s
performance on Alpha.

Thanx, Paul
-
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 13:08    [W:0.025 / U:0.416 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site