Messages in this thread | | | Subject | Re: [PATCH -rt 3/5] asm/local.h cmpxchg | From | Daniel Walker <> | Date | Sat, 14 Jul 2007 09:52:43 -0700 |
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On Sat, 2007-07-14 at 19:57 +0200, Peter Zijlstra wrote: > =================================================================== > --- > linux-2.6.22-rc6-mm1.orig/include/asm-generic/local.h 2007-07-12 > 19:44:18.000000000 -0700 > +++ linux-2.6.22-rc6-mm1/include/asm-generic/local.h 2007-07-12 > 19:44:57.000000000 -0700 > @@ -46,13 +46,34 @@ typedef struct > #define local_add_unless(l, a, u) atomic_long_add_unless((&(l)->a), > (a), (u)) > #define local_inc_not_zero(l) atomic_long_inc_not_zero(&(l)->a) > > -/* Non-atomic variants, ie. preemption disabled and won't be touched > - * in interrupt, etc. Some archs can optimize this case well. */ > +/* > + * Establish a state necessary for __local_xx functions to work. > + */ > +#define __local_begin(flags) local_irq_disable(flags)
Did you mean local_irq_save(flags)? local_irq_disable() doesn't take any arguments.
Daniel
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