percpu: READ_ONCE() now implies smp_read_barrier_depends()

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Because READ_ONCE() now implies smp_read_barrier_depends(), this commit
removes the now-redundant smp_read_barrier_depends() following the
READ_ONCE() in __ref_is_percpu().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Christoph Lameter <cl@linux.com>

...

This commit is contained in:

Paul E. McKenney 2017-10-09 10:20:44 -07:00

parent 7088efa913

commit b393e8b33e

2 changed files with 7 additions and 7 deletions

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6

include/linux/percpu-refcount.h

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