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

From: Segher Boessenkool <[email-masked]>
Date: Tue, 21 Aug 2007 00:07:15 +0200

> Such code generally doesn't care precisely when it gets the update, 
> just that the update is atomic, and it doesn't loop forever.

Yes, it _does_ care that it gets the update _at all_, and preferably
as early as possible.

> Regardless, I'm convinced we just need to do it all in assembly.

So do you want "volatile asm" or "plain asm", for atomic_read()?
The asm version has two ways to go about it too...

Segher