Messages in this thread | | | Subject | Re: [PATCH] [PATCH] Gaurantee spinlocks implicit barrier for !PREEMPT_COUNT | From | Steven Rostedt <> | Date | Mon, 08 Apr 2013 10:05:22 -0400 |
| |
On Sun, 2013-04-07 at 21:48 -0700, Linus Torvalds wrote:
> Ingo? Peter? I'm not sure anybody really uses UP+no-preempt on x86, > but it does seem to be a bug.. Comments?
I believe a lot of people still use no-preempt. Well, at least voluntary preemption, which would have the same bug.
I'm thinking that we may have just been lucky that gcc didn't move the get_user() into a place that would cause issues.
Sounds like a bug to me.
-- Steve
| |