From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: John Stultz <john.stultz@linaro.org>
Cc: "Arve Hjønnevåg" <arve@android.com>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"Martijn Coenen" <maco@android.com>
Subject: Re: [PATCH 00/10] android: binder: support for domains and scatter-gather.
Date: Fri, 3 Feb 2017 08:16:01 +0100 [thread overview]
Message-ID: <20170203071601.GA25580@kroah.com> (raw)
In-Reply-To: <CANcMJZB+6MetpzyUg__KnQM=hnqaiZ4Wg=UsZfgqW-ygeCbejw@mail.gmail.com>
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
prev parent reply other threads:[~2017-02-03 7:15 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-24 13:20 [PATCH 00/10] android: binder: support for domains and scatter-gather Martijn Coenen
2016-10-24 13:20 ` [PATCH 01/10] ANDROID: binder: Add strong ref checks Martijn Coenen
2016-10-24 13:26 ` Greg KH
2016-10-24 14:02 ` Martijn Coenen
2016-10-24 13:20 ` [PATCH 02/10] ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct Martijn Coenen
2016-10-24 13:27 ` Greg KH
2016-10-24 14:03 ` Martijn Coenen
2016-10-24 13:20 ` [PATCH 03/10] android: binder: split flat_binder_object Martijn Coenen
2016-10-24 13:20 ` [PATCH 04/10] android: binder: support multiple context managers Martijn Coenen
2016-10-24 13:20 ` [PATCH 05/10] android: binder: deal with contexts in debugfs Martijn Coenen
2016-10-24 13:20 ` [PATCH 06/10] android: binder: support multiple /dev instances Martijn Coenen
2016-10-24 13:20 ` [PATCH 07/10] android: binder: refactor binder_transact() Martijn Coenen
2016-10-24 13:20 ` [PATCH 08/10] android: binder: add extra size to allocator Martijn Coenen
2016-10-24 13:20 ` [PATCH 09/10] android: binder: support for scatter-gather Martijn Coenen
2016-10-24 13:20 ` [PATCH 10/10] android: binder: support for file-descriptor arrays Martijn Coenen
2017-02-03 4:56 ` [PATCH 00/10] android: binder: support for domains and scatter-gather John Stultz
2017-02-03 7:16 ` Greg Kroah-Hartman [this message]
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