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| author | Peter Zijlstra <peterz@infradead.org> | 2021-05-04 22:43:48 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-05-12 11:43:23 +0200 |
| commit | 4b7a08a0b6e4e910a6feee438d76e426381df0cb (patch) | |
| tree | 1901c17ad0097405f2aeb5f3356f196ccff3212b /kernel/delayacct.c | |
| parent | 619e090c8e409e09bd3e8edcd5a73d83f689890c (diff) | |
| download | linux-4b7a08a0b6e4e910a6feee438d76e426381df0cb.tar.gz linux-4b7a08a0b6e4e910a6feee438d76e426381df0cb.tar.bz2 linux-4b7a08a0b6e4e910a6feee438d76e426381df0cb.zip | |
delayacct: Use sched_clock()
Like all scheduler statistics, use sched_clock() based time.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Link: https://lkml.kernel.org/r/20210505111525.001031466@infradead.org
Diffstat (limited to 'kernel/delayacct.c')
| -rw-r--r-- | kernel/delayacct.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/kernel/delayacct.c b/kernel/delayacct.c index 27725754ac99..3fe7cd52b459 100644 --- a/kernel/delayacct.c +++ b/kernel/delayacct.c @@ -7,9 +7,9 @@ #include <linux/sched.h> #include <linux/sched/task.h> #include <linux/sched/cputime.h> +#include <linux/sched/clock.h> #include <linux/slab.h> #include <linux/taskstats.h> -#include <linux/time.h> #include <linux/sysctl.h> #include <linux/delayacct.h> #include <linux/module.h> @@ -42,10 +42,9 @@ void __delayacct_tsk_init(struct task_struct *tsk) * Finish delay accounting for a statistic using its timestamps (@start), * accumalator (@total) and @count */ -static void delayacct_end(raw_spinlock_t *lock, u64 *start, u64 *total, - u32 *count) +static void delayacct_end(raw_spinlock_t *lock, u64 *start, u64 *total, u32 *count) { - s64 ns = ktime_get_ns() - *start; + s64 ns = local_clock() - *start; unsigned long flags; if (ns > 0) { @@ -58,7 +57,7 @@ static void delayacct_end(raw_spinlock_t *lock, u64 *start, u64 *total, void __delayacct_blkio_start(void) { - current->delays->blkio_start = ktime_get_ns(); + current->delays->blkio_start = local_clock(); } /* @@ -151,21 +150,20 @@ __u64 __delayacct_blkio_ticks(struct task_struct *tsk) void __delayacct_freepages_start(void) { - current->delays->freepages_start = ktime_get_ns(); + current->delays->freepages_start = local_clock(); } void __delayacct_freepages_end(void) { - delayacct_end( - ¤t->delays->lock, - ¤t->delays->freepages_start, - ¤t->delays->freepages_delay, - ¤t->delays->freepages_count); + delayacct_end(¤t->delays->lock, + ¤t->delays->freepages_start, + ¤t->delays->freepages_delay, + ¤t->delays->freepages_count); } void __delayacct_thrashing_start(void) { - current->delays->thrashing_start = ktime_get_ns(); + current->delays->thrashing_start = local_clock(); } void __delayacct_thrashing_end(void) |