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-rw-r--r--lib/percpu-refcount.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
index 087f1a0..94e5b62 100644
--- a/lib/percpu-refcount.c
+++ b/lib/percpu-refcount.c
@@ -33,7 +33,7 @@
static unsigned __percpu *pcpu_count_ptr(struct percpu_ref *ref)
{
- return (unsigned __percpu *)((unsigned long)ref->pcpu_count & ~PCPU_REF_DEAD);
+ return (unsigned __percpu *)(ref->pcpu_count_ptr & ~PCPU_REF_DEAD);
}
/**
@@ -51,8 +51,8 @@ int percpu_ref_init(struct percpu_ref *ref, percpu_ref_func_t *release)
{
atomic_set(&ref->count, 1 + PCPU_COUNT_BIAS);
- ref->pcpu_count = alloc_percpu(unsigned);
- if (!ref->pcpu_count)
+ ref->pcpu_count_ptr = (unsigned long)alloc_percpu(unsigned);
+ if (!ref->pcpu_count_ptr)
return -ENOMEM;
ref->release = release;
@@ -153,11 +153,10 @@ static void percpu_ref_kill_rcu(struct rcu_head *rcu)
void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
percpu_ref_func_t *confirm_kill)
{
- WARN_ONCE((unsigned long)ref->pcpu_count & PCPU_REF_DEAD,
+ WARN_ONCE(ref->pcpu_count_ptr & PCPU_REF_DEAD,
"percpu_ref_kill() called more than once!\n");
- ref->pcpu_count = (unsigned __percpu *)
- (((unsigned long) ref->pcpu_count)|PCPU_REF_DEAD);
+ ref->pcpu_count_ptr |= PCPU_REF_DEAD;
ref->confirm_kill = confirm_kill;
call_rcu_sched(&ref->rcu, percpu_ref_kill_rcu);
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