srcu/tiny: Remove preempt_disable/enable() in srcu_gp_start_if_needed()

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Currently, the srcu_gp_start_if_needed() is always be invoked in
preempt disable's critical section, this commit therefore remove
redundant preempt_disable/enable() in srcu_gp_start_if_needed()
and adds a call to lockdep_assert_preemption_disabled() in order
to enable lockdep to diagnose mistaken invocations of this function
from preempts-enabled code.

Fixes: 65b4a59557 ("srcu: Make Tiny SRCU explicitly disable preemption")
Signed-off-by: Zqiang <qiang.zhang@linux.dev>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

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Zqiang 2025-09-11 20:51:55 +08:00 • committed by Paul E. McKenney

parent 1c77e862b8

commit e6a43aeb71

1 changed files with 1 additions and 3 deletions

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kernel/rcu/srcutiny.c

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