tree 1990719e80d616d0b780490ea75e5c091292dcf3
parent f95e5a3d59011eec1257d0e76de1e1f8969d426f
author Marco Elver <elver@google.com> 1661777235 +0200
committer Peter Zijlstra <peterz@infradead.org> 1661849783 +0200

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