From: Christian Brauner <brauner@kernel.org>
Date: Thu, 18 Sep 2025 10:11:47 +0000 (+0200)
Subject: mnt: port to ns_ref_*() helpers
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2e9e6972279fec7dd352ff05abe596e55988ec41;p=thirdparty%2Fkernel%2Fstable.git

mnt: port to ns_ref_*() helpers

Stop accessing ns.count directly.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
---

diff --git a/fs/mount.h b/fs/mount.h
index 76bf863c9ae28..79c85639a7ba0 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -143,7 +143,7 @@ static inline void detach_mounts(struct dentry *dentry)
 
 static inline void get_mnt_ns(struct mnt_namespace *ns)
 {
-	refcount_inc(&ns->ns.count);
+	ns_ref_inc(ns);
 }
 
 extern seqlock_t mount_lock;
diff --git a/fs/namespace.c b/fs/namespace.c
index b9f94769ec11e..9109069d85cd8 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2110,7 +2110,7 @@ struct mnt_namespace *get_sequential_mnt_ns(struct mnt_namespace *mntns, bool pr
 		 * the mount namespace and it might already be on its
 		 * deathbed.
 		 */
-		if (!refcount_inc_not_zero(&mntns->ns.count))
+		if (!ns_ref_get(mntns))
 			continue;
 
 		return mntns;
@@ -6084,7 +6084,7 @@ void __init mnt_init(void)
 
 void put_mnt_ns(struct mnt_namespace *ns)
 {
-	if (!refcount_dec_and_test(&ns->ns.count))
+	if (!ns_ref_put(ns))
 		return;
 	namespace_lock();
 	emptied_ns = ns;