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percpu_ref: release percpu memory early without PERCPU_REF_ALLOW_REINIT

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Release percpu memory after finishing the switch to the atomic mode
if only PERCPU_REF_ALLOW_REINIT isn't set.

Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
This commit is contained in:
Roman Gushchin
2019-05-07 10:01:50 -07:00
committed by Dennis Zhou
parent ddde2af747
commit 7d9ab9b6ad
2 changed files with 12 additions and 2 deletions
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include/linux/percpu-refcount.h
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@@ -102,6 +102,7 @@ struct percpu_ref {
percpu_ref_func_t *release;
percpu_ref_func_t *confirm_switch;
bool force_atomic:1;
bool allow_reinit:1;
struct rcu_head rcu;
};