From 8865852e00557925f60eb6e26d797833422ee86d Mon Sep 17 00:00:00 2001 From: Fam Zheng Date: Mon, 10 Apr 2017 20:07:35 +0800 Subject: async: Introduce aio_co_enter They start the coroutine on the specified context. Signed-off-by: Fam Zheng Acked-by: Stefan Hajnoczi Reviewed-by: Kevin Wolf --- include/block/aio.h | 9 +++++++++ util/async.c | 7 ++++++- 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/include/block/aio.h b/include/block/aio.h index 677b6ffc25..406e32305a 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -510,6 +510,15 @@ void aio_co_schedule(AioContext *ctx, struct Coroutine *co); */ void aio_co_wake(struct Coroutine *co); +/** + * aio_co_enter: + * @ctx: the context to run the coroutine + * @co: the coroutine to run + * + * Enter a coroutine in the specified AioContext. + */ +void aio_co_enter(AioContext *ctx, struct Coroutine *co); + /** * Return the AioContext whose event loop runs in the current thread. * diff --git a/util/async.c b/util/async.c index 663e297e1f..355af73ee7 100644 --- a/util/async.c +++ b/util/async.c @@ -453,6 +453,11 @@ void aio_co_wake(struct Coroutine *co) smp_read_barrier_depends(); ctx = atomic_read(&co->ctx); + aio_co_enter(ctx, co); +} + +void aio_co_enter(AioContext *ctx, struct Coroutine *co) +{ if (ctx != qemu_get_current_aio_context()) { aio_co_schedule(ctx, co); return; @@ -464,7 +469,7 @@ void aio_co_wake(struct Coroutine *co) QSIMPLEQ_INSERT_TAIL(&self->co_queue_wakeup, co, co_queue_next); } else { aio_context_acquire(ctx); - qemu_coroutine_enter(co); + qemu_aio_coroutine_enter(ctx, co); aio_context_release(ctx); } } -- cgit v1.2.1