Re: [PATCH V4] binder: ipc namespace support for android binder

[Andrew Morton]

On Mon, 12 Nov 2018 09:37:51 +0000 chouryzhou(åå) <chouryzhou@xxxxxxxxxxx> wrote:

> Currently android's binder is not isolated by ipc namespace. Since binder 
> is a form of IPC and therefore should be tied to ipc namespace. With this 
> patch, we can run multiple instances of  android container on one host.
> 
> This patch move "binder_procs" and "binder_context" into ipc_namespace,
> driver will find the context from it when opening. For debugfs, binder_proc
> is namespace-aware, but not for binder dead nodes, binder_stats and 
> binder_transaction_log_entry (we added ipc inum to trace it).
> 
> ...
>
>  drivers/android/binder.c      | 133 ++++++++++++++++++++++++++++++++----------
>  include/linux/ipc_namespace.h |  15 +++++
>  ipc/namespace.c               |  10 +++-
>  3 files changed, 125 insertions(+), 33 deletions(-)

Well, it's mainly an android patch so I suggest this be taken via the
android tree.

Acked-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>