Messages in this thread | | | Date | Tue, 27 Jan 2015 17:47:16 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 3/5] sched/deadline: Fix wrong cpudl_find() in check_preempt_equal_dl() |
| |
On Mon, Jan 19, 2015 at 04:49:38AM +0000, Xunlei Pang wrote: > In check_preempt_equal_dl(), cpudl_find() is called with a NULL > later_mask, thus cpudl_find() here doesn't check cpudl::free_cpus > at all. > > This patch takles this issue by always passing a non-NULL later_mask > to cpudl_find(), thereby fixing this issue.
Fix what issue? Afaict this is an optimization not a fix.
| |