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| author | Martijn Coenen <maco@google.com> | 2017-02-03 14:40:48 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-10 16:00:01 +0100 |
| commit | ac4812c5ffbb88dd3280a6dacd39fcb73e077fe4 (patch) | |
| tree | 01fd627d2ae32289d06dd3af5bbc2d924100bfe0 /drivers/android/Kconfig | |
| parent | 14db31814a9a21cf343e71d6773e7683a5b3f64d (diff) | |
| download | lwn-ac4812c5ffbb88dd3280a6dacd39fcb73e077fe4.tar.gz lwn-ac4812c5ffbb88dd3280a6dacd39fcb73e077fe4.zip | |
binder: Support multiple /dev instances
Add a new module parameter 'devices', that can be
used to specify the names of the binder device
nodes we want to populate in /dev.
Each device node has its own context manager, and
is therefore logically separated from all the other
device nodes.
The config option CONFIG_ANDROID_BINDER_DEVICES can
be used to set the default value of the parameter.
This approach was favored over using IPC namespaces,
mostly because we require a single process to be a
part of multiple binder contexts, which seemed harder
to achieve with namespaces.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Martijn Coenen <maco@google.com>
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Serban Constantinescu <serban.constantinescu@arm.com>
Cc: Dmitry Shmidt <dimitrysh@google.com>
Cc: Rom Lemarchand <romlem@google.com>
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Martijn Coenen <maco@google.com>
[jstultz: minor checkpatch warning fix]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android/Kconfig')
| -rw-r--r-- | drivers/android/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/android/Kconfig b/drivers/android/Kconfig index bdfc6c6f4f5a..a82fc022d34b 100644 --- a/drivers/android/Kconfig +++ b/drivers/android/Kconfig @@ -19,6 +19,18 @@ config ANDROID_BINDER_IPC Android process, using Binder to identify, invoke and pass arguments between said processes. +config ANDROID_BINDER_DEVICES + string "Android Binder devices" + depends on ANDROID_BINDER_IPC + default "binder" + ---help--- + Default value for the binder.devices parameter. + + The binder.devices parameter is a comma-separated list of strings + that specifies the names of the binder device nodes that will be + created. Each binder device has its own context manager, and is + therefore logically separated from the other devices. + config ANDROID_BINDER_IPC_32BIT bool depends on !64BIT && ANDROID_BINDER_IPC |