srcu: Check for consistent per-CPU per-srcu_struct NMI safety

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This commit adds runtime checks to verify that a given srcu_struct uses
consistent NMI-safe (or not) read-side primitives on a per-CPU basis.

Link: https://lore.kernel.org/all/20220910221947.171557773@linutronix.de/

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: Petr Mladek <pmladek@suse.com>

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This commit is contained in:

Paul E. McKenney 2022-09-19 14:03:07 -07:00

parent 2e83b879fb

commit 27120e7d2c

3 changed files with 43 additions and 12 deletions

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12

include/linux/srcu.h

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5

include/linux/srcutree.h

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38

kernel/rcu/srcutree.c

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