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SubjectRe: [PATCH v3 0/3] Binder: Enable App Freezing Capability
On Mon, Mar 15, 2021 at 06:16:27PM -0700, Li Li wrote:
> From: Li Li <dualli@google.com>
>
> To improve the user experience when switching between recently used
> applications, the background applications which are not currently needed
> are cached in the memory. Normally, a well designed application will not
> consume valuable CPU resources in the background. However, it's possible
> some applications are not able or willing to behave as expected, wasting
> energy even after being cached.
>
> It is a good idea to freeze those applications when they're only being
> kept alive for the sake of faster startup and energy saving. These kernel
> patches will provide the necessary infrastructure for user space framework
> to freeze and thaw a cached process, check the current freezing status and
> correctly deal with outstanding binder transactions to frozen processes.
>
> Changes in v2: avoid panic by using pr_warn for unexpected cases.
> Changes in v3: improved errcode logic in binder_proc_transaction().
>
> Marco Ballesio (3):
> binder: BINDER_FREEZE ioctl
> binder: use EINTR for interrupted wait for work
> binder: BINDER_GET_FROZEN_INFO ioctl
>
> drivers/android/binder.c | 198 ++++++++++++++++++++++++++--
> drivers/android/binder_internal.h | 18 +++
> include/uapi/linux/android/binder.h | 20 +++
> 3 files changed, 224 insertions(+), 12 deletions(-)

[+Cc Jann]

Christian

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