Re: [PATCH 6/24] make atomic_read() behave consistently on frv
From: David Howells <dhowells@redhat.com>
Date: 2007-08-11 08:48:55
Also in:
linux-arch, lkml
Chris Snook [off-list ref] wrote:
cpu_relax() contains a barrier, so it should do the right thing. For non-smp architectures, I'm concerned about interacting with interrupt handlers. Some drivers do use atomic_* operations.
I'm not sure that actually answers my question. Why not smp_rmb()? David