locking/percpu-rwsem: Add DEFINE_PERCPU_RWSEM(), use it to initialize cgroup_threadgroup_rwsem

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Turn DEFINE_STATIC_PERCPU_RWSEM() into __DEFINE_PERCPU_RWSEM() with the
additional "is_static" argument to introduce DEFINE_PERCPU_RWSEM().

Change cgroup.c to use DEFINE_PERCPU_RWSEM(cgroup_threadgroup_rwsem).

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

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Oleg Nesterov 2019-04-23 18:32:41 +02:00 • committed by Paul E. McKenney

parent 2bf1acc299

commit 3f2947b781

2 changed files with 7 additions and 4 deletions

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8

include/linux/percpu-rwsem.h

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3

kernel/cgroup/cgroup.c

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