Messages in this thread | | | Date | Fri, 8 Dec 2006 15:32:50 +0000 | From | Russell King <> | Subject | Re: [PATCH] WorkStruct: Implement generic UP cmpxchg() where an arch doesn't support it |
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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: - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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