From: Li Li <dualli@xxxxxxxxxx> User applications need to know if their binder transactions reach a frozen process or not. For sync binder calls, Linux kernel already has a dedicated return value BR_FROZEN_REPLY, indicating this sync binder transaction will be rejected (similar to BR_DEAD_REPLY) as the target process is frozen. But for async binder calls, the user space application doesn't have a way to know if the target process is frozen. This patch adds a new return value, BR_TRANSACTION_PENDING, to fix this issue. Similar to BR_TRANSACTION_COMPLETE, it means the async binder transaction has been put in the queue of the target process, but it's waiting for the target process to be unfrozen. v1: checkpatch.pl --strict passed v2: protect proc->is_frozen with lock, fix typo in comments Li Li (1): binder: return pending info for frozen async txns drivers/android/binder.c | 31 +++++++++++++++++++++++------ drivers/android/binder_internal.h | 3 ++- include/uapi/linux/android/binder.h | 7 ++++++- 3 files changed, 33 insertions(+), 8 deletions(-) -- 2.38.1.431.g37b22c650d-goog _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
