On Mon, 24 Apr 2006 19:57:47 -0700, Daniel Walker wrote:
>+ if (likeliness->type & LIKELY_UNSEEN) {
>+ if (atomic_dec_and_test(&likely_lock)) {
>+ if (likeliness->type & LIKELY_UNSEEN) {
>+ likeliness->type &= (~LIKELY_UNSEEN);
>+ likeliness->next = likeliness_head;
>+ likeliness_head = likeliness;
>+ }
>+ }
>+ atomic_inc(&likely_lock);
>+ }
I'm pretty sure one can do this (prepending an element to a list)
w/o fiddling with locks by using CAS and looping until successful.
/Mikael
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
