Almost there :-)
+static __inline__ void
+__clear_bit_unlock(int nr, volatile void *addr)
+{
+ __u32 mask, new;
+ volatile __u32 *m;
+
+ m = (volatile __u32 *)addr + (nr >> 5);
Still cannot see why you need an ".acq" on this load.
Why do you use "volatile"?
What about this one?
static __inline__ void
__clear_bit_unlock(int const nr, void * const addr)
{
__u32 * const m = addr + (nr >> 5);
__u32 new;
new = *m & ~(1 << (nr & 31));
barrier();
asm volatile ("st4.rel.nta [%0] = %1\n\t" :: "r"(m), "r"(new));
}
Thanks,
Zoltan Menyhart
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