Re: [BUG] "sched: Remove rq->lock from the first half of ttwu()" locks up on ARM
On Sun, May 29, 2011 at 11:21:19AM +0100, Catalin Marinas wrote: > To avoid extra per-thread flags, we could set a per-cpu variable in > switch_mm() so that we know what to switch the page tables to in the > post-switch hook.
Why do we need to add more per-cpu stuff when we already have easy access to the thread flags?