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    SubjectRe: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it
    On Thu, Dec 07, 2006 at 03:06:06PM +0000, Russell King wrote:
    > On Wed, Dec 06, 2006 at 11:05:22AM -0800, Linus Torvalds wrote:
    > >
    > >
    > > On Wed, 6 Dec 2006, Christoph Lameter wrote:
    > > >
    > > > I'd really appreciate a cmpxchg that is generically available for
    > > > all arches. It will allow lockless implementation for various performance
    > > > criticial portions of the kernel.
    > >
    > > I suspect ARM may have been the last one without one, no?
    > >
    > > That said, cmpxchg won't necessarily be "high-performance" unless the hw
    > > supports it naturally in hardware, so..
    > >
    > > Russell, are you ok with the code DavidH posted (the "try 2" one)? I'd
    > > like to get an ack from the ARM maintainer before applying it, but it
    > > looked ok.
    >
    > Things seem to have moved on since this request. Do I need to do
    > anything? I dunno.

    ARM's still broken.

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