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Merge "ANDROID: binder: clarify deferred thread work."

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Linux Build Service Account 2017-11-22 15:43:11 -08:00 • committed by Gerrit - the friendly Code Review server
commit 2238e9e2bc
1 changed files with 11 additions and 4 deletions
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15
drivers/android/binder.c
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@ -832,7 +832,7 @@ binder_enqueue_work_ilocked(struct binder_work *work,
}
/**
* binder_enqueue_thread_work_ilocked_nowake() - Add thread work
* binder_enqueue_deferred_thread_work_ilocked() - Add deferred thread work
* @thread: thread to queue work to
* @work: struct binder_work to add to list
*
@ -843,8 +843,8 @@ binder_enqueue_work_ilocked(struct binder_work *work,
* Requires the proc->inner_lock to be held.
*/
static void
binder_enqueue_thread_work_ilocked_nowake(struct binder_thread *thread,
struct binder_work *work)
binder_enqueue_deferred_thread_work_ilocked(struct binder_thread *thread,
struct binder_work *work)
{
binder_enqueue_work_ilocked(work, &thread->todo);
}
@ -3347,7 +3347,14 @@ static void binder_transaction(struct binder_proc *proc,
} else if (!(t->flags & TF_ONE_WAY)) {
BUG_ON(t->buffer->async_transaction != 0);
binder_inner_proc_lock(proc);
binder_enqueue_thread_work_ilocked_nowake(thread, tcomplete);
/*
* Defer the TRANSACTION_COMPLETE, so we don't return to
* userspace immediately; this allows the target process to
* immediately start processing this transaction, reducing
* latency. We will then return the TRANSACTION_COMPLETE when
* the target replies (or there is an error).
*/
binder_enqueue_deferred_thread_work_ilocked(thread, tcomplete);
t->need_reply = 1;
t->from_parent = thread->transaction_stack;
thread->transaction_stack = t;