linux-kernel - [PATCH v2 13/33] time: use ns_common

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Message-Id: <20250912-work-namespace-v2-13-1a247645cef5@kernel.org>
Date: Fri, 12 Sep 2025 13:52:36 +0200
From: Christian Brauner <brauner@...nel.org>
To: Jan Kara <jack@...e.cz>, Amir Goldstein <amir73il@...il.com>, 
 linux-fsdevel@...r.kernel.org
Cc: Josef Bacik <josef@...icpanda.com>, Jeff Layton <jlayton@...nel.org>, 
 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>, 
 Alexander Viro <viro@...iv.linux.org.uk>, Jens Axboe <axboe@...nel.dk>, 
 Tejun Heo <tj@...nel.org>, Johannes Weiner <hannes@...xchg.org>, 
 Michal Koutný <mkoutny@...e.com>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, 
 Chuck Lever <chuck.lever@...cle.com>, linux-nfs@...r.kernel.org, 
 linux-kselftest@...r.kernel.org, linux-block@...r.kernel.org, 
 linux-kernel@...r.kernel.org, cgroups@...r.kernel.org, 
 netdev@...r.kernel.org, Christian Brauner <brauner@...nel.org>, 
 Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH v2 13/33] time: use ns_common_init()

Don't cargo-cult the same thing over and over.

Reviewed-by: Jan Kara <jack@...e.cz>
Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Christian Brauner <brauner@...nel.org>
---
 kernel/time/namespace.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/kernel/time/namespace.c b/kernel/time/namespace.c
index 667452768ed3..0be93d8f2896 100644
--- a/kernel/time/namespace.c
+++ b/kernel/time/namespace.c
@@ -88,22 +88,19 @@ static struct time_namespace *clone_time_ns(struct user_namespace *user_ns,
 		goto fail;
 
 	err = -ENOMEM;
-	ns = kmalloc(sizeof(*ns), GFP_KERNEL_ACCOUNT);
+	ns = kzalloc(sizeof(*ns), GFP_KERNEL_ACCOUNT);
 	if (!ns)
 		goto fail_dec;
 
-	refcount_set(&ns->ns.count, 1);
-
 	ns->vvar_page = alloc_page(GFP_KERNEL_ACCOUNT | __GFP_ZERO);
 	if (!ns->vvar_page)
 		goto fail_free;
 
-	err = ns_alloc_inum(&ns->ns);
+	err = ns_common_init(&ns->ns, &timens_operations, true);
 	if (err)
 		goto fail_free_page;
 
 	ns->ucounts = ucounts;
-	ns->ns.ops = &timens_operations;
 	ns->user_ns = get_user_ns(user_ns);
 	ns->offsets = old_ns->offsets;
 	ns->frozen_offsets = false;

-- 
2.47.3