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uts: use ns_common_init() 

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

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-09-12 13:52:38 +02:00
parent 00ed42285c
commit 09337e064c
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 2 additions and 14 deletions
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16
kernel/utsname.c
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@ -27,16 +27,6 @@ static void dec_uts_namespaces(struct ucounts *ucounts)
dec_ucount(ucounts, UCOUNT_UTS_NAMESPACES);
}
static struct uts_namespace *create_uts_ns(void)
{
struct uts_namespace *uts_ns;
uts_ns = kmem_cache_alloc(uts_ns_cache, GFP_KERNEL);
if (uts_ns)
refcount_set(&uts_ns->ns.count, 1);
return uts_ns;
}
/*
* Clone a new ns copying an original utsname, setting refcount to 1
* @old_ns: namespace to clone
@ -55,17 +45,15 @@ static struct uts_namespace *clone_uts_ns(struct user_namespace *user_ns,
goto fail;
err = -ENOMEM;
ns = create_uts_ns();
ns = kmem_cache_zalloc(uts_ns_cache, GFP_KERNEL);
if (!ns)
goto fail_dec;
err = ns_alloc_inum(&ns->ns);
err = ns_common_init(&ns->ns, &utsns_operations, true);
if (err)
goto fail_free;
ns->ucounts = ucounts;
ns->ns.ops = &utsns_operations;
down_read(&uts_sem);
memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
ns->user_ns = get_user_ns(user_ns);