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authorAl Viro <viro@zeniv.linux.org.uk>2014-11-01 02:32:53 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-12-04 14:34:47 -0500
commit33c429405a2c8d9e42afb9fee88a63cfb2de1e98 (patch)
treed2ffe096cd36852049b844c8befd1ba0ba6cf18c /kernel
parent6344c433a452b1a05d03a61a6a85d89f793bb7b8 (diff)
download96b-common-33c429405a2c8d9e42afb9fee88a63cfb2de1e98.tar.gz
copy address of proc_ns_ops into ns_common
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/nsproxy.c8
-rw-r--r--kernel/pid.c3
-rw-r--r--kernel/pid_namespace.c1
-rw-r--r--kernel/user.c3
-rw-r--r--kernel/user_namespace.c1
-rw-r--r--kernel/utsname.c2
6 files changed, 14 insertions, 4 deletions
diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c
index ef42d0ab3115..87c37221cb7f 100644
--- a/kernel/nsproxy.c
+++ b/kernel/nsproxy.c
@@ -220,11 +220,11 @@ void exit_task_namespaces(struct task_struct *p)
SYSCALL_DEFINE2(setns, int, fd, int, nstype)
{
- const struct proc_ns_operations *ops;
struct task_struct *tsk = current;
struct nsproxy *new_nsproxy;
struct proc_ns *ei;
struct file *file;
+ struct ns_common *ns;
int err;
file = proc_ns_fget(fd);
@@ -233,8 +233,8 @@ SYSCALL_DEFINE2(setns, int, fd, int, nstype)
err = -EINVAL;
ei = get_proc_ns(file_inode(file));
- ops = ei->ns_ops;
- if (nstype && (ops->type != nstype))
+ ns = ei->ns;
+ if (nstype && (ns->ops->type != nstype))
goto out;
new_nsproxy = create_new_namespaces(0, tsk, current_user_ns(), tsk->fs);
@@ -243,7 +243,7 @@ SYSCALL_DEFINE2(setns, int, fd, int, nstype)
goto out;
}
- err = ops->install(new_nsproxy, ei->ns);
+ err = ns->ops->install(new_nsproxy, ns);
if (err) {
free_nsproxy(new_nsproxy);
goto out;
diff --git a/kernel/pid.c b/kernel/pid.c
index 3650698cf1dc..c17a993a4d2a 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -80,6 +80,9 @@ struct pid_namespace init_pid_ns = {
.child_reaper = &init_task,
.user_ns = &init_user_ns,
.ns.inum = PROC_PID_INIT_INO,
+#ifdef CONFIG_PID_NS
+ .ns.ops = &pidns_operations,
+#endif
};
EXPORT_SYMBOL_GPL(init_pid_ns);
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 5aa9158a84d5..e1bafe3b47bb 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -108,6 +108,7 @@ static struct pid_namespace *create_pid_namespace(struct user_namespace *user_ns
err = ns_alloc_inum(&ns->ns);
if (err)
goto out_free_map;
+ ns->ns.ops = &pidns_operations;
kref_init(&ns->kref);
ns->level = level;
diff --git a/kernel/user.c b/kernel/user.c
index a7ca84bad8e6..69b800aebf13 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -51,6 +51,9 @@ struct user_namespace init_user_ns = {
.owner = GLOBAL_ROOT_UID,
.group = GLOBAL_ROOT_GID,
.ns.inum = PROC_USER_INIT_INO,
+#ifdef CONFIG_USER_NS
+ .ns.ops = &userns_operations,
+#endif
#ifdef CONFIG_PERSISTENT_KEYRINGS
.persistent_keyring_register_sem =
__RWSEM_INITIALIZER(init_user_ns.persistent_keyring_register_sem),
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 6bf8177768e5..1491ad00388f 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -91,6 +91,7 @@ int create_user_ns(struct cred *new)
kmem_cache_free(user_ns_cachep, ns);
return ret;
}
+ ns->ns.ops = &userns_operations;
atomic_set(&ns->count, 1);
/* Leave the new->user_ns reference with the new user namespace. */
diff --git a/kernel/utsname.c b/kernel/utsname.c
index c2a2b321d88a..831ea7108232 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -48,6 +48,8 @@ static struct uts_namespace *clone_uts_ns(struct user_namespace *user_ns,
return ERR_PTR(err);
}
+ 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);