Messages in this thread |  | | | Date | Wed, 9 May 2012 23:12:24 +0300 | | From | "Michael S. Tsirkin" <> | | Subject | Re: [PATCH] bitops: add _local bitops |
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On Wed, May 09, 2012 at 01:10:04PM -0700, H. Peter Anvin wrote: > On 05/09/2012 01:07 PM, Michael S. Tsirkin wrote: > > > > In practice ATM any of the above will work. We probably don't even need > > to add barrier() calls since what we do afterwards is apic access which > > has an optimization barrier anyway. But I'm fine with adding them in > > there just in case if that's what people want. > > > > If you have the optimization barrier anyway, then I'd be fine with you > just using __test_and_clear_bit() and add to a comment in > arch/x86/include/asm/bitops.h that KVM needs it to be locally atomic. > > -hpa
Sounds good. Avi?
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