On 5/7/07, mohanlal jangir <mohanlal@xxxxxxxxxxx> wrote:
Is following code SMP safe?
#define InterlockedIncrement(x) ({ asm volatile ("lock; incl %0" : : "m"
(*x) ); })
#define InterlockedDecrement(x) ({ asm volatile ("lock; decl %0" : : "m"
(*x) ); })
AFAIK it is SMP safe.
Does -O2 option affect SMP safeness in this case?
IMO no.
Are you getting some strange warnings related to volatile with your
kernel/compiler?
Thanks
~psr
Regards,
Mohan
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