diff options
| author |   Takashi Iwai <tiwai@suse.de> | 2017-12-20 17:36:04 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-12-20 17:36:04 +0100 |
| commit | 1e9a328e4b35af22c23ce9357c2c2a77159e74bb (patch) | |
| tree | d04364bc2f892e1db6a4ec0edaccfbb782acd243 /kernel/sched/rt.c | |
| parent | ALSA: usb-audio: Fix the missing ctl name suffix at parsing SU (diff) | |
| parent | Merge remote-tracking branches 'asoc/fix/rt5663', 'asoc/fix/tlv320aic31xx' and 'asoc/fix/twl4030' into asoc-linus (diff) | |
| download | linux-dev-1e9a328e4b35af22c23ce9357c2c2a77159e74bb.tar.xz linux-dev-1e9a328e4b35af22c23ce9357c2c2a77159e74bb.zip | |
Merge tag 'asoc-fix-v4.15-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.15
This is a fairly large set of fixes, they've been delayed partly as more
and more keep coming in. Most of them are very small driver specific
fixes, the biggest individual thing is the revert of the rcar IOMMU
support - it was causing problems and there wasn't the confidence that
it could be resolved sensibly. There's also a relatively large change
in the Freescale SSI controller which resolves some issues with the
AC'97 mode, these aren't that large in the grand scheme of things and
reflect some fairly thorough review and testing.
Diffstat (limited to 'kernel/sched/rt.c')
| -rw-r--r-- | kernel/sched/rt.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 4056c19ca3f0..665ace2fc558 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -2034,8 +2034,9 @@ static void pull_rt_task(struct rq *this_rq) bool resched = false; struct task_struct *p; struct rq *src_rq; + int rt_overload_count = rt_overloaded(this_rq); - if (likely(!rt_overloaded(this_rq))) + if (likely(!rt_overload_count)) return; /* @@ -2044,6 +2045,11 @@ static void pull_rt_task(struct rq *this_rq) */ smp_rmb(); + /* If we are the only overloaded CPU do nothing */ + if (rt_overload_count == 1 && + cpumask_test_cpu(this_rq->cpu, this_rq->rd->rto_mask)) + return; + #ifdef HAVE_RT_PUSH_IPI if (sched_feat(RT_PUSH_IPI)) { tell_cpu_to_push(this_rq); |