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userns: add a user namespace owner of ipc ns

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Changelog:
	Feb 15: Don't set new ipc->user_ns if we didn't create a new
		ipc_ns.
	Feb 23: Move extern declaration to ipc_namespace.h, and group
		fwd declarations at top.

Signed-off-by: Serge E. Hallyn <serge.hallyn@canonical.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Daniel Lezcano <daniel.lezcano@free.fr>
Acked-by: David Howells <dhowells@redhat.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Serge E. Hallyn 2011-03-23 16:43:23 -07:00 • committed by Linus Torvalds
parent fc832ad364
commit b515498f5b
4 changed files with 16 additions and 2 deletions
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1
ipc/msgutil.c
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@ -32,6 +32,7 @@ struct ipc_namespace init_ipc_ns = {
.mq_msg_max = DFLT_MSGMAX,
.mq_msgsize_max = DFLT_MSGSIZEMAX,
#endif
.user_ns = &init_user_ns,
};
atomic_t nr_ipc_ns = ATOMIC_INIT(1);