time: use ns_common_init()

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

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

diff --git a/kernel/time/namespace.c b/kernel/time/namespace.c
index 667452768ed3b50e48e3cfb70f8ef68e4bed9e0b..0be93d8f2896d60cceb1c841e8ee4c00b8552921 100644 (file)
--- 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;