+christ...@brauner.io On Sun, Oct 28, 2018 at 7:29 PM chouryzhou(周威) <chouryz...@tencent.com> wrote: ... > > > It's not obvious from this patch where this dependency comes > > from...why is SYSVIPC required? I'd like to not have to require IPC_NS > > either for devices. > > Yes, the patch is not highly dependent on SYSVIPC, but it will be convenient > if require it. I will update it to drop dependency of it in V2 patch. This > patch > doesn't need IPC_NS set at present.
Actually it is dependent on IPC_NS since it makes changes to ipc/namespace.c which is compiled only if CONFIG_IPC_NS. There are a couple more implementations similar to this one. https://lwn.net/Articles/577957/ and some submissions to AOSP derived from that one that introduce a generic registration function for namespace support [1], and changes to binder to implement namespaces [2]. If this is really needed, then we should have a solution that works for devices without requiring IPC_NS or SYSVIPC. Also, we should not add binder-specific code to ipc/namespace.c or include/linux/ipc_namespace.h. -Todd [1] https://android-review.googlesource.com/c/kernel/common/+/471961 [2] https://android-review.googlesource.com/c/kernel/common/+/471825
