delayacct: Default disabled

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Assuming this stuff isn't actually used much; disable it by default
and avoid allocating and tracking the task_delay_info structure.

taskstats is changed to still report the regular sched and sched_info
and only skip the missing task_delay_info fields instead of not
reporting anything.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20210505111525.308018373@infradead.org

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Peter Zijlstra 2021-05-04 22:43:32 +02:00

parent eee4d9fee2

commit e4042ad492

4 changed files with 20 additions and 25 deletions

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16

include/linux/delayacct.h

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