rcu: Add KCSAN exclusive-writer assertions for rdp->cpu_no_qs.b.exp

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The value of rdp->cpu_no_qs.b.exp may be changed only by the corresponding
CPU, and that CPU is not even allowed to race with itself, for example,
via interrupt handlers.  This commit therefore adds KCSAN exclusive-writer
assertions to check this constraint.

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

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Paul E. McKenney 2024-10-25 17:44:28 -07:00 • committed by Uladzislau Rezki (Sony)

parent 7a32337119

commit ecc5e6b0d3

2 changed files with 5 additions and 0 deletions

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4

kernel/rcu/tree_exp.h

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1

kernel/rcu/tree_plugin.h

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