linux-imx

/*

 *  Copyright (C) 2006 IBM Corporation

 *

 *  Author: Serge Hallyn <serue@us.ibm.com>

 *

 *  This program is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU General Public License as

 *  published by the Free Software Foundation, version 2 of the

 *  License.

 *

 *  Jun 2006 - namespaces support

 *             OpenVZ, SWsoft Inc.

 *             Pavel Emelianov <xemul@openvz.org>

 */

​

#include <linux/slab.h>

#include <linux/export.h>

#include <linux/nsproxy.h>

#include <linux/init_task.h>

#include <linux/mnt_namespace.h>

#include <linux/utsname.h>

#include <linux/pid_namespace.h>

#include <net/net_namespace.h>

#include <linux/ipc_namespace.h>

#include <linux/proc_ns.h>

#include <linux/file.h>

#include <linux/syscalls.h>

#include <linux/cgroup.h>

#include <linux/perf_event.h>

​

static struct kmem_cache *nsproxy_cachep;

​

struct nsproxy init_nsproxy = {

    .count          = ATOMIC_INIT(1),

    .uts_ns         = &init_uts_ns,

#if defined(CONFIG_POSIX_MQUEUE) || defined(CONFIG_SYSVIPC)

    .ipc_ns         = &init_ipc_ns,

#endif

    .mnt_ns         = NULL,

    .pid_ns_for_children    = &init_pid_ns,

#ifdef CONFIG_NET

    .net_ns         = &init_net,

#endif

#ifdef CONFIG_CGROUPS

    .cgroup_ns      = &init_cgroup_ns,

#endif

};

​

static inline struct nsproxy *create_nsproxy(void)

{

    struct nsproxy *nsproxy;

​

    nsproxy = kmem_cache_alloc(nsproxy_cachep, GFP_KERNEL);

    if (nsproxy)

        atomic_set(&nsproxy->count, 1);

    return nsproxy;

}

​

/*

 * Create new nsproxy and all of its the associated namespaces.

 * Return the newly created nsproxy.  Do not attach this to the task,

 * leave it to the caller to do proper locking and attach it to task.

 */