sched_ext: Optimize schedule_dsq_reenq() with lockless fast path

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schedule_dsq_reenq() always acquires deferred_reenq_lock to queue a reenqueue
request. Add a lockless fast-path to skip lock acquisition when the request is
already pending with the required flags set.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andrea Righi <arighi@nvidia.com>

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Tejun Heo 2026-03-07 05:29:50 -10:00

parent 84b1a0ea0b

commit a90449b126

1 changed files with 36 additions and 8 deletions

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kernel/sched/ext.c

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