Trond Myklebust <[email protected]> writes:
> On Fri, 2006-01-20 at 19:53 -0500, Chuck Ebbert wrote:
>
>> #define ADDR (*(volatile long *) addr)
>> static inline void set_bit(int nr, volatile unsigned long * addr)
>> {
>> __asm__ __volatile__( "lock ; "
>> "btsl %1,%0"
>> :"=m" (ADDR)
>> :"Ir" (nr));
>> }
>
> The asm needs a memory clobber in order to avoid reordering with the
> assignment to b[1]:
Check out 2.6.16-rc1, this has already been fixed.
Andreas.
--
Andreas Schwab, SuSE Labs, [email protected]
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
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