On Mon, 2009-06-29 at 16:57 +0100, David Howells wrote:
> kernel mailz <kernelma...@googlemail.com> wrote:
>
> > asm("sync");
>
> Isn't gcc free to discard this as it has no dependencies, no indicated side
> effects, and isn't required to be kept? I think this should probably be:
>
> asm volatile("sync");
It should also have a "memory" clobber or it's pointless since gcc would
otherwise be free to move load and stores accross that barrier.
Cheers,
Ben.
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