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authorPeter Zijlstra <peterz@infradead.org>2017-12-20 16:26:12 +0100
committerIngo Molnar <mingo@kernel.org>2018-03-09 07:59:15 +0100
commit8f111bc357aa811e0bb5fdfe34c4c9efdafc15b9 (patch)
tree22a20bec8324aaa71d1fe9de174dd8bc0138f771 /include/linux/sched/cpufreq.h
parent4042d003a0792a3b05c7c424219e4c6cf1abfe76 (diff)
cpufreq/schedutil: Rewrite CPUFREQ_RT support
Instead of trying to duplicate scheduler state to track if an RT task is running, directly use the scheduler runqueue state for it. This vastly simplifies things and fixes a number of bugs related to sugov and the scheduler getting out of sync wrt this state. As a consequence we not also update the remove cfs/dl state when iterating the shared mask. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Juri Lelli <juri.lelli@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/sched/cpufreq.h')
-rw-r--r--include/linux/sched/cpufreq.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/sched/cpufreq.h b/include/linux/sched/cpufreq.h
index d963cfd3a0c2..b48f2fb3b316 100644
--- a/include/linux/sched/cpufreq.h
+++ b/include/linux/sched/cpufreq.h
@@ -8,8 +8,7 @@
* Interface between cpufreq drivers and the scheduler:
*/
-#define SCHED_CPUFREQ_RT (1U << 0)
-#define SCHED_CPUFREQ_IOWAIT (1U << 1)
+#define SCHED_CPUFREQ_IOWAIT (1U << 0)
#ifdef CONFIG_CPU_FREQ
struct update_util_data {