Messages in this thread | | | Date | Fri, 3 Feb 2017 08:16:01 +0100 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH 00/10] android: binder: support for domains and scatter-gather. |
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On Thu, Feb 02, 2017 at 08:56:04PM -0800, John Stultz wrote: > On Mon, Oct 24, 2016 at 6:20 AM, Martijn Coenen <maco@android.com> wrote: > > Android userspace will start using binder IPC for communication with HAL > > modules. To clearly separate this IPC domain from the existing framework > > IPC domain, this patch series adds support for multiple "binder domains". > > This is implemented by each domain having its own binder context manager, > > and then having a separate device node per domain. > > > > The other change introduced by this series is scatter-gather; currently > > all objects passed through binder IPC must be serialized in userspace, with > > with the exception of binder objects and file descriptors. By adding scatter- > > gather support for memory buffers, we can avoid the serialization copy, > > thereby increasing performance for larger transaction sizes. > > > > The two patches from Arve are security patches that we've already applied > > in android-common. I included them in front of the series because my changes > > touch quite some of that code. > > Hey Greg, > Curious what the status of these patches are? Did you have any > outstanding objection, or were you just waiting for them to be resent? > > AOSP is now making use of this feature, so mainline kernels have > trouble booting w/o it, so it would be good to get merged. :)
The patches that ended up in AOSP are a bit different from this series from what I remember, which is why I didn't end up applying this series at the time (it needed more work.) If you could dig up the latest versions, I'll be glad to review/merge them as well.
There's also the 'hwbinder' work that should be in AOSP also, that should get merged too.
thanks,
greg k-h
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