2 files changed, 5 insertions, 4 deletions

diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index fadd579d577d..ae68980e9d48 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -4,6 +4,7 @@
 #include <linux/spinlock.h>
 #include <linux/uidgid.h>
 #include <uapi/linux/ipc.h>
+#include <linux/refcount.h>
 
 #define IPCMNI 32768  /* <= MAX_INT limit for ipc arrays (including sysctl changes) */
 
@@ -22,7 +23,7 @@ struct kern_ipc_perm {
         void            *security;
 
         struct rcu_head rcu;
-        atomic_t refcount;
+        refcount_t refcount;
 } ____cacheline_aligned_in_smp __randomize_layout;
 
 #endif /* _LINUX_IPC_H */
diff --git a/ipc/util.c b/ipc/util.c
index 1a2cb02467ab..069bb22c9f64 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -232,7 +232,7 @@ int ipc_addid(struct ipc_ids *ids, struct kern_ipc_perm *new, int size)
 
         idr_preload(GFP_KERNEL);
 
-        atomic_set(&new->refcount, 1);
+        refcount_set(&new->refcount, 1);
         spin_lock_init(&new->lock);
         new->deleted = false;
         rcu_read_lock();
@@ -397,13 +397,13 @@ void ipc_rmid(struct ipc_ids *ids, struct kern_ipc_perm *ipcp)
 
 int ipc_rcu_getref(struct kern_ipc_perm *ptr)
 {
-        return atomic_inc_not_zero(&ptr->refcount);
+        return refcount_inc_not_zero(&ptr->refcount);
 }
 
 void ipc_rcu_putref(struct kern_ipc_perm *ptr,
                         void (*func)(struct rcu_head *head))
 {
-        if (!atomic_dec_and_test(&ptr->refcount))
+        if (!refcount_dec_and_test(&ptr->refcount))
                 return;
 
         call_rcu(&ptr->rcu, func);