diff --git a/fs/mount.h b/fs/mount.h index c7abb7b394d8..ce6c376e0bc2 100644 --- a/fs/mount.h +++ b/fs/mount.h @@ -6,7 +6,6 @@ #include struct mnt_namespace { - atomic_t count; struct ns_common ns; struct mount * root; /* @@ -120,7 +119,7 @@ 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->ns.count); } extern seqlock_t mount_lock; diff --git a/fs/namespace.c b/fs/namespace.c index bae0e95b3713..f887247165b3 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -3261,7 +3261,7 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns, bool a new_ns->ns.ops = &mntns_operations; if (!anon) new_ns->seq = atomic64_add_return(1, &mnt_ns_seq); - atomic_set(&new_ns->count, 1); + refcount_set(&new_ns->ns.count, 1); INIT_LIST_HEAD(&new_ns->list); init_waitqueue_head(&new_ns->poll); spin_lock_init(&new_ns->ns_lock); @@ -3835,7 +3835,7 @@ 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->ns.count)) return; drop_collected_mounts(&ns->root->mnt); free_mnt_ns(ns);