diff --git a/[refs] b/[refs] index 391f4050c718..8c257252dac2 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 13b6f57623bc485e116344fe91fbcb29f149242b +refs/heads/master: 34482e89a5218f0f9317abf1cfba3bb38b5c29dd diff --git a/trunk/fs/proc/namespaces.c b/trunk/fs/proc/namespaces.c index dcbd483e9915..b017181f1273 100644 --- a/trunk/fs/proc/namespaces.c +++ b/trunk/fs/proc/namespaces.c @@ -19,6 +19,9 @@ static const struct proc_ns_operations *ns_entries[] = { #ifdef CONFIG_NET_NS &netns_operations, #endif +#ifdef CONFIG_UTS_NS + &utsns_operations, +#endif }; static const struct file_operations ns_file_operations = { diff --git a/trunk/include/linux/proc_fs.h b/trunk/include/linux/proc_fs.h index 62126ec6ede9..52aa89df8a6d 100644 --- a/trunk/include/linux/proc_fs.h +++ b/trunk/include/linux/proc_fs.h @@ -266,6 +266,7 @@ struct proc_ns_operations { int (*install)(struct nsproxy *nsproxy, void *ns); }; extern const struct proc_ns_operations netns_operations; +extern const struct proc_ns_operations utsns_operations; union proc_op { int (*proc_get_link)(struct inode *, struct path *); diff --git a/trunk/kernel/utsname.c b/trunk/kernel/utsname.c index 44646179eaba..bff131b9510a 100644 --- a/trunk/kernel/utsname.c +++ b/trunk/kernel/utsname.c @@ -15,6 +15,7 @@ #include #include #include +#include static struct uts_namespace *create_uts_ns(void) { @@ -79,3 +80,41 @@ void free_uts_ns(struct kref *kref) put_user_ns(ns->user_ns); kfree(ns); } + +static void *utsns_get(struct task_struct *task) +{ + struct uts_namespace *ns = NULL; + struct nsproxy *nsproxy; + + rcu_read_lock(); + nsproxy = task_nsproxy(task); + if (nsproxy) { + ns = nsproxy->uts_ns; + get_uts_ns(ns); + } + rcu_read_unlock(); + + return ns; +} + +static void utsns_put(void *ns) +{ + put_uts_ns(ns); +} + +static int utsns_install(struct nsproxy *nsproxy, void *ns) +{ + get_uts_ns(ns); + put_uts_ns(nsproxy->uts_ns); + nsproxy->uts_ns = ns; + return 0; +} + +const struct proc_ns_operations utsns_operations = { + .name = "uts", + .type = CLONE_NEWUTS, + .get = utsns_get, + .put = utsns_put, + .install = utsns_install, +}; +