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new helpers: ns_alloc_inum/ns_free_inum

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take struct ns_common *, for now simply wrappers around proc_{alloc,free}_inum()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-11-01 00:45:45 -04:00
parent 64964528b2
commit 6344c433a4
7 changed files with 16 additions and 13 deletions
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4
kernel/user_namespace.c
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@ -86,7 +86,7 @@ int create_user_ns(struct cred *new)
if (!ns)
return -ENOMEM;
ret = proc_alloc_inum(&ns->ns.inum);
ret = ns_alloc_inum(&ns->ns);
if (ret) {
kmem_cache_free(user_ns_cachep, ns);
return ret;
@ -136,7 +136,7 @@ void free_user_ns(struct user_namespace *ns)
#ifdef CONFIG_PERSISTENT_KEYRINGS
key_put(ns->persistent_keyring_register);
#endif
proc_free_inum(ns->ns.inum);
ns_free_inum(&ns->ns);
kmem_cache_free(user_ns_cachep, ns);
ns = parent;
} while (atomic_dec_and_test(&parent->count));