Messages in this thread | | | Date | Wed, 17 Apr 2013 09:18:27 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH v3 5/5] mutex: Move mutex spinning code from sched/core.c back to mutex.c |
| |
* Waiman Long <Waiman.Long@hp.com> wrote:
> As mentioned by Ingo, the SCHED_FEAT_OWNER_SPIN scheduler feature > bit was really just an early hack to make with/without mutex-spinning > testable. So it is no longer necessary. > > This patch removes the SCHED_FEAT_OWNER_SPIN feature bit and move the > mutex spinning code from kernel/sched/core.c back to kernel/mutex.c > which is where they should belong. > > Signed-off-by: Waiman Long <Waiman.Long@hp.com> > --- > include/linux/sched.h | 4 --- > kernel/mutex.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++ > kernel/sched/core.c | 63 ----------------------------------------------- > kernel/sched/features.h | 7 ----- > 4 files changed, 62 insertions(+), 74 deletions(-)
Please move this patch first in the series - so that later, functional patches are easier to revert, should the need arise. When possible we sort patches by risk: low risk ones first, riskier come later.
Thanks,
Ingo
| |