Re: [PATCH]: Clean up of __alloc_pages

Paul Jackson
2005-11-07T14:41:56Z

Ok ... so a spinlock (task_lock) costs one barrier and one atomic more
than an rcu_read_lock (on a preempt kernel where both spinlock and
rcu_read_lock cost a preempt), or something like that.

Thanks, Nick.

--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401