(Ok I don't know what the actual version number is - it's high but 11 is probably safe) Cedric and Nadia took several approaches to making posix message queues per-namespace. I ended up mamking some deep changes so am not retaining their Signed-off-by:s on this version, but this is definately very much based on work by both of them. Patch 2 hopefully explains my approach. Briefly, 1. sysv and posix ipc are both under CLONE_NEWIPC 2. the mqueue sb is per-ipc-namespace So to create a new ipc namespace, you would unshare(CLONE_NEWIPC|CLONE_NEWNS); umount /dev/mqueue mount -t mqueue mqueue /dev/mqueue It's perfectly valid to do vfs operations on files in another ipc_namespace's /dev/mqueue, but any use of mq_open(3) and friends will act in your own ipc_ns. thanks, -serge _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers
