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namespaces: mqueue ns: move mqueue_mnt into struct ipc_namespace

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Move mqueue vfsmount plus a few tunables into the ipc_namespace struct.
The CONFIG_IPC_NS boolean and the ipc_namespace struct will serve both the
posix message queue namespaces and the SYSV ipc namespaces.

The sysctl code will be fixed separately in patch 3.  After just this
patch, making a change to posix mqueue tunables always changes the values
in the initial ipc namespace.

Signed-off-by: Cedric Le Goater <[email protected]>
Signed-off-by: Serge E. Hallyn <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Serge E. Hallyn 2009-04-06 19:01:08 -07:00 • committed by Linus Torvalds
commit 614b84cf4e
7 changed files with 145 additions and 71 deletions
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2
ipc/namespace.c
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@ -25,6 +25,7 @@ static struct ipc_namespace *clone_ipc_ns(struct ipc_namespace *old_ns)
sem_init_ns(ns);
msg_init_ns(ns);
shm_init_ns(ns);
mq_init_ns(ns);
/*
* msgmni has already been computed for the new ipc ns.
@ -101,6 +102,7 @@ void free_ipc_ns(struct kref *kref)
sem_exit_ns(ns);
msg_exit_ns(ns);
shm_exit_ns(ns);
mq_exit_ns(ns);
kfree(ns);
atomic_dec(&nr_ipc_ns);