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ANDROID: binder: clarify deferred thread work.

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Rename the function to more accurately reflect what
it does, and add a comment explaining why we use it.

Change-Id: I8d011c017dfc6e24b5b54fc462578f8e153e5926
Signed-off-by: Martijn Coenen <maco@android.com>
(cherry picked from commit 6b6637fd46)
This commit is contained in:
Martijn Coenen
2017-11-13 09:55:21 +01:00
committed by Petri Gynther
parent bfa9d65d0c
commit ce8d66c2cb
1 changed files with 11 additions and 4 deletions
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15
drivers/android/binder.c
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@@ -844,7 +844,7 @@ 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
*
@@ -855,8 +855,8 @@ 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);
}
@@ -3457,7 +3457,14 @@ 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;