Re: [rfc] "fair" rw spinlocks

Andi Kleen
2009-11-25T08:49:18Z

David Miller <davem@davemloft.net> writes:
>
> I think nobody would notice if you changed tasklist_lock into
> a spinlock_t, and this would solve the DoS because at least on
> x86 you'd end up with the ticket spinlocks.

iirc tasklist_lock was one of them who could be potentially nested.

So just turning it into a spinlock might deadlock.

-Andi

--
ak@linux.intel.com -- Speaking for myself only.