@@ -3,9 +3,10 @@
#include <linux/poll.h>
#include <linux/ns_common.h>
#include <linux/fs_pin.h>
+#include <linux/refcount.h>
struct mnt_namespace {
- atomic_t count;
+ refcount_t count;
struct ns_common ns;
struct mount * root;
struct list_head list;
@@ -110,7 +111,7 @@ static inline void detach_mounts(struct dentry *dentry)
static inline void get_mnt_ns(struct mnt_namespace *ns)
{
- atomic_inc(&ns->count);
+ refcount_inc(&ns->count);
}
extern seqlock_t mount_lock;
@@ -2888,7 +2888,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
}
new_ns->ns.ops = &mntns_operations;
new_ns->seq = atomic64_add_return(1, &mnt_ns_seq);
- atomic_set(&new_ns->count, 1);
+ refcount_set(&new_ns->count, 1);
new_ns->root = NULL;
INIT_LIST_HEAD(&new_ns->list);
init_waitqueue_head(&new_ns->poll);
@@ -3278,7 +3278,7 @@ void __init mnt_init(void)
void put_mnt_ns(struct mnt_namespace *ns)
{
- if (!atomic_dec_and_test(&ns->count))
+ if (!refcount_dec_and_test(&ns->count))
return;
drop_collected_mounts(&ns->root->mnt);
free_mnt_ns(ns);