Re: [PATCH 6/6] fs: Introduce kern_mount_special() to mountspecial vfs

[Al Viro]

On Fri, Nov 28, 2008 at 09:26:04AM +0000, Al Viro wrote:

gyah...  That would be

> static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
> {
> 	unsigned long temp, res;
> 	__asm__ __volatile__(
> 	"1:     ldl_l %0,%1\n"
> 	"       cmpne %0,%4,%2\n"
 	"       beq %2,3f\n"
 	"       addl %0,%3,%2\n"
> 	"       stl_c %2,%1\n"
> 	"       beq %2,2f\n"
> 	"3:\n"
>         ".subsection 2\n"
>         "2:     br 1b\n"
>         ".previous"
>         :"=&r" (temp), "=m" (v->counter), "=&r" (res)
>         :"Ir" (a), "Ir" (u), "m" (v->counter) : "memory");
> 	smp_mb();
> 	return res;
> }
> 
> static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
> {
> 	unsigned long temp, res;
> 	__asm__ __volatile__(
> 	"1:     ldq_l %0,%1\n"
> 	"       cmpne %0,%4,%2\n"
 	"       beq %2,3f\n"
 	"       addq %0,%3,%2\n"
> 	"       stq_c %2,%1\n"
> 	"       beq %2,2f\n"
> 	"3:\n"
>         ".subsection 2\n"
>         "2:     br 1b\n"
>         ".previous"
>         :"=&r" (temp), "=m" (v->counter), "=&r" (res)
>         :"Ir" (a), "Ir" (u), "m" (v->counter) : "memory");
> 	smp_mb();
> 	return res;
> }
> 
> Comments?
> --
> To unsubscribe from this list: send the line "unsubscribe netdev" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/