[PATCH] IPC namespace core
This patch set allows to unshare IPCs and have a private set of IPC objects
(sem, shm, msg) inside namespace. Basically, it is another building block of
containers functionality.
This patch implements core IPC namespace changes:
- ipc_namespace structure
- new config option CONFIG_IPC_NS
- adds CLONE_NEWIPC flag
- unshare support
[clg@fr.ibm.com: small fix for unshare of ipc namespace]
[akpm@osdl.org: build fix]
Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index 9c2e0ad..f6baecd 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -6,6 +6,7 @@
struct namespace;
struct uts_namespace;
+struct ipc_namespace;
/*
* A structure to contain pointers to all per-process
@@ -23,6 +24,7 @@
atomic_t count;
spinlock_t nslock;
struct uts_namespace *uts_ns;
+ struct ipc_namespace *ipc_ns;
struct namespace *namespace;
};
extern struct nsproxy init_nsproxy;