From: Li Li
An async transaction to a frozen process will still be successsfully
put in the queue. But this pending async transaction won't be processed
until the target process is unfrozen at an unspecified time in the
future. Pass this important information back to the user space caller
by
From: Li Li
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
