linux-kernel - [PATCH 08/17] ns: make is_initial

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Message-Id: <20251110-work-namespace-nstree-fixes-v1-8-e8a9264e0fb9@kernel.org>
Date: Mon, 10 Nov 2025 16:08:20 +0100
From: Christian Brauner <brauner@...nel.org>
To: linux-fsdevel@...r.kernel.org, Josef Bacik <josef@...icpanda.com>, 
 Jeff Layton <jlayton@...nel.org>
Cc: Jann Horn <jannh@...gle.com>, Mike Yuan <me@...dnzj.com>, 
 Zbigniew Jędrzejewski-Szmek <zbyszek@...waw.pl>, 
 Lennart Poettering <mzxreary@...inter.de>, 
 Daan De Meyer <daan.j.demeyer@...il.com>, Aleksa Sarai <cyphar@...har.com>, 
 Amir Goldstein <amir73il@...il.com>, Tejun Heo <tj@...nel.org>, 
 Johannes Weiner <hannes@...xchg.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Alexander Viro <viro@...iv.linux.org.uk>, Jan Kara <jack@...e.cz>, 
 linux-kernel@...r.kernel.org, cgroups@...r.kernel.org, bpf@...r.kernel.org, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 netdev@...r.kernel.org, Arnd Bergmann <arnd@...db.de>, 
 Christian Brauner <brauner@...nel.org>
Subject: [PATCH 08/17] ns: make is_initial_namespace() argument const

We don't modify the data structure at all so pass it as const.

Signed-off-by: Christian Brauner <brauner@...nel.org>
---
 include/linux/ns_common.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/ns_common.h b/include/linux/ns_common.h
index f90509ee0900..7e4df96b7411 100644
--- a/include/linux/ns_common.h
+++ b/include/linux/ns_common.h
@@ -13,7 +13,7 @@ int __ns_common_init(struct ns_common *ns, u32 ns_type, const struct proc_ns_ope
 void __ns_common_free(struct ns_common *ns);
 struct ns_common *__must_check ns_owner(struct ns_common *ns);
 
-static __always_inline bool is_initial_namespace(struct ns_common *ns)
+static __always_inline bool is_initial_namespace(const struct ns_common *ns)
 {
 	VFS_WARN_ON_ONCE(ns->inum == 0);
 	return unlikely(in_range(ns->inum, MNT_NS_INIT_INO,

-- 
2.47.3