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    SubjectRe: [PATCH 5/5] remove HAVE_ARCH_CMPXCHG
    On Wed, Sep 14, 2005 at 03:26:10PM -0700, David S. Miller wrote:
    > From: Russell King <rmk+lkml@arm.linux.org.uk>
    > Date: Wed, 14 Sep 2005 23:03:53 +0100
    >
    > > What business has userspace got of telling whether cmpxchg works on
    > > an architecture by looking at kernel headers?
    >
    > Russell, please don't fly off the handle like this.

    Sigh, I wasn't. I was making a valid point. Maybe if you read the
    bit I quoted you'd have realised that, which was:

    > I think userspace synchronization may be quite a valid use of
    ^^^^^^^^^
    > atomic cmpxchg, but Kconfig is a far better place to do it than
    > testing HAVE_ARCH_CMPXCHG.

    But maybe I'm not capable of interpreting the above english? To
    me at least it's definitely talking about user space, not kernel
    space.

    --
    Russell King
    Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
    maintainer of: 2.6 Serial core
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