diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2011-11-17 08:20:58 +0100 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-04-08 02:11:46 +0200 |
| commit | 7b44ab978b77a91b327058a0f4db7e6fcdb90b92 (patch) | |
| tree | 632c872f0b88d001f1bddce2c0aacd77bf062454 /kernel/user_namespace.c | |
| parent | userns: Add a Kconfig option to enforce strict kuid and kgid type checks (diff) | |
| download | linux-7b44ab978b77a91b327058a0f4db7e6fcdb90b92.tar.xz linux-7b44ab978b77a91b327058a0f4db7e6fcdb90b92.zip | |
userns: Disassociate user_struct from the user_namespace.
Modify alloc_uid to take a kuid and make the user hash table global.
Stop holding a reference to the user namespace in struct user_struct.
This simplifies the code and makes the per user accounting not
care about which user namespace a uid happens to appear in.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'kernel/user_namespace.c')
| -rw-r--r-- | kernel/user_namespace.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c index e216e1e8ce84..898e973bd1e8 100644 --- a/kernel/user_namespace.c +++ b/kernel/user_namespace.c @@ -27,7 +27,6 @@ int create_user_ns(struct cred *new) { struct user_namespace *ns, *parent_ns = new->user_ns; struct user_struct *root_user; - int n; ns = kmem_cache_alloc(user_ns_cachep, GFP_KERNEL); if (!ns) @@ -35,11 +34,8 @@ int create_user_ns(struct cred *new) kref_init(&ns->kref); - for (n = 0; n < UIDHASH_SZ; ++n) - INIT_HLIST_HEAD(ns->uidhash_table + n); - /* Alloc new root user. */ - root_user = alloc_uid(ns, 0); + root_user = alloc_uid(make_kuid(ns, 0)); if (!root_user) { kmem_cache_free(user_ns_cachep, ns); return -ENOMEM; |