From: Christian Brauner <brauner@kernel.org>
Date: Thu, 18 Sep 2025 10:11:49 +0000 (+0200)
Subject: ipc: port to ns_ref_*() helpers
X-Git-Tag: v6.18-rc1~232^2~4^2~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d4825c99d6a738c565d5142ce37369368a4352da;p=thirdparty%2Fkernel%2Fstable.git

ipc: 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/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 924e4754374fb..21eff63f47dae 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -140,14 +140,14 @@ extern struct ipc_namespace *copy_ipcs(unsigned long flags,
 static inline struct ipc_namespace *get_ipc_ns(struct ipc_namespace *ns)
 {
 	if (ns)
-		refcount_inc(&ns->ns.count);
+		ns_ref_inc(ns);
 	return ns;
 }
 
 static inline struct ipc_namespace *get_ipc_ns_not_zero(struct ipc_namespace *ns)
 {
 	if (ns) {
-		if (refcount_inc_not_zero(&ns->ns.count))
+		if (ns_ref_get(ns))
 			return ns;
 	}
 
diff --git a/ipc/namespace.c b/ipc/namespace.c
index 09d261a1a2aa4..bd85d1c9d2c21 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -199,7 +199,7 @@ static void free_ipc(struct work_struct *unused)
  */
 void put_ipc_ns(struct ipc_namespace *ns)
 {
-	if (refcount_dec_and_lock(&ns->ns.count, &mq_lock)) {
+	if (ns_ref_put_and_lock(ns, &mq_lock)) {
 		mq_clear_sbinfo(ns);
 		spin_unlock(&mq_lock);