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(parent: 4e0d846) | patch
sched: Trigger warning if ->migration_disabled counter underflows.
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>
Mon, 29 Nov 2021 17:46:44 +0000 (18:46 +0100)
committerPeter Zijlstra <peterz@infradead.org>
Sat, 4 Dec 2021 09:56:22 +0000 (10:56 +0100)
commit9d0df37797453f168afdb2e6fd0353c73718ae9a
tree31ff628d481cc9c76881994ff59d69840c3e5a4ctree | snapshot
parent4e0d84634445ed550498d613a49ea8f6cfa5e66ccommit | diff
sched: Trigger warning if ->migration_disabled counter underflows.

If migrate_enable() is used more often than its counter part then it
remains undetected and rq::nr_pinned will underflow, too.

Add a warning if migrate_enable() is attempted if without a matching a
migrate_disable().

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20211129174654.668506-2-bigeasy@linutronix.de
kernel/sched/core.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)