Messages in this thread | | | Date | Thu, 16 Apr 2009 18:20:04 +0200 | From | Eric Dumazet <> | Subject | Re: [PATCH] netfilter: use per-cpu recursive spinlock (v6) |
| |
Eric Dumazet a écrit :
> I also considered using regular spinlocks and spin_trylock() to "detect" > the recurse case without a global counter. > > lock : > local_bh_disable(); > int locked = spin_trylock(&__get_cpu_var(arp_tables_lock); > > unlock: > > if (likely(locked)) > spin_unlock(&__get_cpu_var(arp_tables_lock)); > local_bh_enable(); > > But we would lose some runtime features, I dont feel comfortable about > this trylock version. What others people think ? >
Oh well, this wont work of course, forget about this trylock thing :)
-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |