lkml.org 
[lkml]   [2005]   [Dec]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/19] MUTEX: Introduce simple mutex implementation
On Fri, Dec 16, 2005 at 02:53:06PM -0800, David S. Miller wrote:
> I'll have to add "put write prefetch in CAS sequences" onto my sparc64
> TODO list :-)

You might consider just beginning your loops like

mov zero, old
cas [mem], zero, old

to do the initial read, since old will now contain the
contents of the memory, and we havn't changed the memory.


r~
-
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: 2005-12-17 23:42    [W:0.404 / U:33.516 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site