Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures

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To: Segher Boessenkool <segher@...>
Cc: Paul Mackerras <paulus@...>, <heiko.carstens@...>, <horms@...>, Stefan Richter <stefanr@...>, Satyam Sharma <satyam@...>, Linux Kernel Mailing List <linux-kernel@...>, David Miller <davem@...>, Paul E. McKenney <paulmck@...>, <ilpo.jarvinen@...>, <ak@...>, <cfriesen@...>, <rpjday@...>, Netdev <netdev@...>, <jesper.juhl@...>, <linux-arch@...>, Andrew Morton <akpm@...>, <zlynx@...>, <schwidefsky@...>, Chris Snook <csnook@...>, Herbert Xu <herbert@...>, Linus Torvalds <torvalds@...>, <wensong@...>, <wjiang@...>
Date: Monday, September 10, 2007 - 2:59 pm

On Fri, 17 Aug 2007, Segher Boessenkool wrote:


Stores can be reordered. Only x86 has (mostly) implicit write ordering. So 
no atomic_dec has no volatile semantics and may be reordered on a variety 
of processors. Writes to memory may not follow code order on several 
processors.


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Messages in current thread:
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Tue Aug 14, 6:31 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Wed Aug 15, 3:59 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Thu Aug 16, 4:50 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Fri Aug 17, 6:34 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Thu Aug 16, 5:00 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Fri Aug 17, 6:38 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Fri Aug 24, 1:15 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Wed Aug 15, 8:26 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Wed Aug 15, 8:42 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Wed Aug 15, 10:07 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Thu Aug 16, 3:39 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Thu Aug 16, 2:54 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Thu Aug 16, 4:20 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Fri Aug 17, 1:41 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Mon Sep 10, 2:59 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Mon Sep 10, 10:27 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Mon Sep 10, 5:36 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Fri Aug 17, 7:17 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Fri Aug 17, 8:04 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Fri Aug 17, 10:15 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Sat Aug 18, 1:18 am)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Fri Aug 17, 6:09 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Arjan van de Ven, (Mon Sep 10, 10:51 am)
Re: [PATCH] Document non-semantics of atomic_read() and atom..., Christoph Lameter, (Tue Sep 11, 3:35 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Mon Sep 10, 2:59 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Tue Aug 21, 10:59 am)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Mon Aug 20, 6:07 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Paul E. McKenney, (Thu Aug 16, 12:34 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Fri Aug 17, 6:14 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Paul E. McKenney, (Fri Aug 17, 10:31 am)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Wed Aug 15, 10:15 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Wed Aug 15, 10:17 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Paul E. McKenney, (Wed Aug 15, 10:35 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Wed Aug 15, 8:59 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Wed Aug 15, 9:41 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Paul E. McKenney, (Wed Aug 15, 10:32 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Wed Aug 15, 8:40 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Wed Aug 15, 2:31 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Wed Aug 15, 4:42 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Paul E. McKenney, (Wed Aug 15, 10:25 am)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Wed Aug 15, 4:58 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Segher Boessenkool, (Wed Aug 15, 5:07 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Paul E. McKenney, (Wed Aug 15, 12:08 pm)
Re: [PATCH 0/24] make atomic_read() behave consistently acro..., Christoph Lameter, (Tue Aug 14, 6:51 pm)