PROPAGATED_from (CR)
Frozen tasks can't process binder transactions, so a way is required to
inform transmitting ends of communication failures due to the frozen
state of their receiving counterparts. Additionally, races are possible
between transitions to frozen state and binder transactions enqueued to
a specific process.
Implement BINDER_FREEZE ioctl for user space to inform the binder driver
about the intention to freeze or unfreeze a process. When the ioctl is
called, block the caller until any pending binder transactions toward
the target process are flushed. Return an error to transactions to
processes marked as frozen.
Change-Id: Iccd8c52a3f35207b2bc294bd5dc6bcca4dda4437
Signed-off-by: Marco Ballesio <balejs@google.com>
Co-developed-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Li Li <dualli@google.com>
Signed-off-by: Kanagarathina kalathi <kalath(CR)@motorola.com>
Reviewed-on: https://gerrit.mot.com/2108850
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Srihari Sathyanarayana <sriharis@motorola.com>
Reviewed-by: Vijayakumar Gn <vijaygn@motorola.com>
Reviewed-by: Ling Jin <lingjin@motorola.com>
Submit-Approved: Jira Key
Signed-off-by: Christian Bernard Gioia <chrisb@motorola.com>
Reviewed-on: https://gerrit.mot.com/2122168
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
marco Ballesio
cc240be298