rcu: Support direct wake-up of synchronize_rcu() users

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This patch introduces a small enhancement which allows to do a
direct wake-up of synchronize_rcu() callers. It occurs after a
completion of grace period, thus by the gp-kthread.

Number of clients is limited by the hard-coded maximum allowed
threshold. The remaining part, if still exists is deferred to
a main worker.

Link: https://lore.kernel.org/lkml/Zd0ZtNu+Rt0qXkfS@lothringen/

Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>

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Uladzislau Rezki (Sony) 2024-03-08 18:34:07 +01:00

parent 2053937a31

commit 462df2f543

2 changed files with 29 additions and 1 deletions

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24

kernel/rcu/tree.c

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6

kernel/rcu/tree.h

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