tree 31ef85d837693d35843ff56d719d89db4950794f
parent 09ed79d6d75f06cc963a78f25463251b0a758dc7
author Roman Gushchin <guro@fb.com> 1557248508 -0700
committer Dennis Zhou <dennis@kernel.org> 1557424230 -0700

io_uring: initialize percpu refcounters using PERCU_REF_ALLOW_REINIT

Percpu reference counters should now be initialized with the
PERCPU_REF_ALLOW_REINIT in order to allow switching them to the
percpu mode from the atomic mode. This is exactly what
percpu_ref_reinit() called from __io_uring_register() is supposed to
do. So let's initialize percpu refcounters with the
PERCU_REF_ALLOW_REINIT flag.

Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Dennis Zhou <dennis@kernel.org>