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authorBoqun Feng <boqun.feng@gmail.com>2015-07-02 22:25:52 +0800
committerIngo Molnar <mingo@kernel.org>2015-07-07 08:46:10 +0200
commit8e2b0bf397279878babcb39b021edcafe7c945eb (patch)
tree95d0defdbf80dcc15af360cf623c4088fa9e03c4 /kernel/sched
parent44dcb04f0ea8eaac3b9c9d3172416efc5a950214 (diff)
downloadlinux-8e2b0bf397279878babcb39b021edcafe7c945eb.tar.bz2
sched/fair: Clean up the __sched_period() code
Since commit: 4bf0b77158 ("sched: remove do_div() from __sched_slice()") ... the logic of __sched_period() can be implemented as a single if-else without any local variables, so this patch cleans it up with an if-else statement, which expresses the function's logic straightforwardly. Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1435847152-29543-1-git-send-email-boqun.feng@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/fair.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index a53a610095e6..03ea05bd4c13 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -616,15 +616,10 @@ static inline u64 calc_delta_fair(u64 delta, struct sched_entity *se)
*/
static u64 __sched_period(unsigned long nr_running)
{
- u64 period = sysctl_sched_latency;
- unsigned long nr_latency = sched_nr_latency;
-
- if (unlikely(nr_running > nr_latency)) {
- period = sysctl_sched_min_granularity;
- period *= nr_running;
- }
-
- return period;
+ if (unlikely(nr_running > sched_nr_latency))
+ return nr_running * sysctl_sched_min_granularity;
+ else
+ return sysctl_sched_latency;
}
/*