[PATCH] namespaces: incorporate fs namespace into nsproxy

This moves the mount namespace into the nsproxy.  The mount namespace count
now refers to the number of nsproxies point to it, rather than the number of
tasks.  As a result, the unshare_namespace() function in kernel/fork.c no
longer checks whether it is being shared.

Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Andrey Savochkin <saw@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 0 insertions, 4 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index 1d0e9ea1fa05..741bbe42dfe8 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -399,11 +399,8 @@ void daemonize(const char *name, ...)
         current->fs = fs;
         atomic_inc(&fs->count);
 
-        exit_namespace(current);
         exit_task_namespaces(current);
-        current->namespace = init_task.namespace;
         current->nsproxy = init_task.nsproxy;
-        get_namespace(current->namespace);
         get_task_namespaces(current);
 
         exit_files(current);
@@ -923,7 +920,6 @@ fastcall NORET_TYPE void do_exit(long code)
         exit_sem(tsk);
         __exit_files(tsk);
         __exit_fs(tsk);
-        exit_namespace(tsk);
         exit_task_namespaces(tsk);
         exit_thread();
         cpuset_exit(tsk);