Roman Zippel wrote:
Hi,
On Fri, 3 Mar 2006, Andrew Morton wrote:
Yes, we now require cmpxchg of all architectures.
Actually I'd prefer if we used atomic_cmpxchg() instead.
The cmpxchg() emulation was never added for a good reason - to keep code
from assuming it can be used it for userspace synchronisation. Using an
atomic_t here would probably get at least some attention.
Yes, I guess that's what Andrew meant. The reason we can require
atomic_cmpxchg of all architectures is because it is only guaranteed
to work on atomic_t.
Glad to hear it won't be a problem for you though.
--
SUSE Labs, Novell Inc.
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