[PATCH] namespaces: utsname: implement utsname namespaces

This patch defines the uts namespace and some manipulators.
Adds the uts namespace to task_struct, and initializes a
system-wide init namespace.

It leaves a #define for system_utsname so sysctl will compile.
This define will be removed in a separate patch.

[akpm@osdl.org: build fix, cleanup]
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, 8 insertions, 0 deletions

diff --git a/init/Kconfig b/init/Kconfig
index f7a04d0daf07..b0ea97554473 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -182,6 +182,14 @@ config TASK_DELAY_ACCT
 
           Say N if unsure.
 
+config UTS_NS
+        bool "UTS Namespaces"
+        default n
+        help
+          Support uts namespaces.  This allows containers, i.e.
+          vservers, to use uts namespaces to provide different
+          uts info for different servers.  If unsure, say N.
+
 config AUDIT
         bool "Auditing support"
         depends on NET