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| author | Qian Cai <cai@lca.pw> | 2019-09-16 17:19:35 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-09-17 09:55:02 +0200 |
| commit | dac9f027b1096c5f03ca583e787aac0f852e8f78 (patch) | |
| tree | a9433ea61393bba6fea25a93c2998c6c07f41932 /kernel/sched | |
| parent | ad062195731bea1624ce7160e79e0fcdaa25c1b5 (diff) | |
| download | linux-dac9f027b1096c5f03ca583e787aac0f852e8f78.tar.bz2 | |
sched/fair: Remove unused cfs_rq_clock_task() function
cfs_rq_clock_task() was first introduced and used in:
f1b17280efbd ("sched: Maintain runnable averages across throttled periods")
Over time its use has been graduately removed by the following commits:
d31b1a66cbe0 ("sched/fair: Factorize PELT update")
23127296889f ("sched/fair: Update scale invariance of PELT")
Today, there is no single user left, so it can be safely removed.
Found via the -Wunused-function build warning.
Signed-off-by: Qian Cai <cai@lca.pw>
Cc: Ben Segall <bsegall@google.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/1568668775-2127-1-git-send-email-cai@lca.pw
[ Rewrote the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/fair.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index d4bbf68c3161..3101c662426d 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -749,7 +749,6 @@ void init_entity_runnable_average(struct sched_entity *se) /* when this task enqueue'ed, it will contribute to its cfs_rq's load_avg */ } -static inline u64 cfs_rq_clock_task(struct cfs_rq *cfs_rq); static void attach_entity_cfs_rq(struct sched_entity *se); /* @@ -4376,15 +4375,6 @@ static inline struct cfs_bandwidth *tg_cfs_bandwidth(struct task_group *tg) return &tg->cfs_bandwidth; } -/* rq->task_clock normalized against any time this cfs_rq has spent throttled */ -static inline u64 cfs_rq_clock_task(struct cfs_rq *cfs_rq) -{ - if (unlikely(cfs_rq->throttle_count)) - return cfs_rq->throttled_clock_task - cfs_rq->throttled_clock_task_time; - - return rq_clock_task(rq_of(cfs_rq)) - cfs_rq->throttled_clock_task_time; -} - /* returns 0 on failure to allocate runtime */ static int assign_cfs_rq_runtime(struct cfs_rq *cfs_rq) { @@ -4476,7 +4466,6 @@ static int tg_unthrottle_up(struct task_group *tg, void *data) cfs_rq->throttle_count--; if (!cfs_rq->throttle_count) { - /* adjust cfs_rq_clock_task() */ cfs_rq->throttled_clock_task_time += rq_clock_task(rq) - cfs_rq->throttled_clock_task; @@ -5080,11 +5069,6 @@ static inline bool cfs_bandwidth_used(void) return false; } -static inline u64 cfs_rq_clock_task(struct cfs_rq *cfs_rq) -{ - return rq_clock_task(rq_of(cfs_rq)); -} - static void account_cfs_rq_runtime(struct cfs_rq *cfs_rq, u64 delta_exec) {} static bool check_cfs_rq_runtime(struct cfs_rq *cfs_rq) { return false; } static void check_enqueue_throttle(struct cfs_rq *cfs_rq) {} |