Marco Elver 01fe8a3f81 locking/percpu-rwsem: Add percpu_is_write_locked() and percpu_is_read_locked() ...

Implement simple accessors to probe percpu-rwsem's locked state:
percpu_is_write_locked(), percpu_is_read_locked().

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20220829124719.675715-11-elver@google.com

2022-08-30 10:56:23 +02:00

7.5 KiB

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