From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39134) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxusn-00045B-13 for qemu-devel@nongnu.org; Tue, 11 Apr 2017 08:26:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cxusm-0003re-0D for qemu-devel@nongnu.org; Tue, 11 Apr 2017 08:26:53 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55057) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cxusl-0003rG-NR for qemu-devel@nongnu.org; Tue, 11 Apr 2017 08:26:51 -0400 From: Fam Zheng Date: Tue, 11 Apr 2017 20:26:25 +0800 Message-Id: <20170411122632.14050-5-famz@redhat.com> In-Reply-To: <20170411122632.14050-1-famz@redhat.com> References: <20170411122632.14050-1-famz@redhat.com> Subject: [Qemu-devel] [PULL 04/11] coroutine: Extract qemu_aio_coroutine_enter List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , famz@redhat.com It's a variant of qemu_coroutine_enter with an explicit AioContext parameter. Signed-off-by: Fam Zheng Acked-by: Stefan Hajnoczi Reviewed-by: Kevin Wolf --- include/qemu/coroutine.h | 5 +++++ util/qemu-coroutine.c | 11 ++++++++--- util/trace-events | 2 +- 3 files changed, 14 insertions(+), 4 deletions(-) diff --git a/include/qemu/coroutine.h b/include/qemu/coroutine.h index e60beaf..a4509bd 100644 --- a/include/qemu/coroutine.h +++ b/include/qemu/coroutine.h @@ -77,6 +77,11 @@ void qemu_coroutine_enter(Coroutine *coroutine); void qemu_coroutine_enter_if_inactive(Coroutine *co); /** + * Transfer control to a coroutine and associate it with ctx + */ +void qemu_aio_coroutine_enter(AioContext *ctx, Coroutine *co); + +/** * Transfer control back to a coroutine's caller * * This function does not return until the coroutine is re-entered using diff --git a/util/qemu-coroutine.c b/util/qemu-coroutine.c index 72412e5..486af9a 100644 --- a/util/qemu-coroutine.c +++ b/util/qemu-coroutine.c @@ -102,12 +102,12 @@ static void coroutine_delete(Coroutine *co) qemu_coroutine_delete(co); } -void qemu_coroutine_enter(Coroutine *co) +void qemu_aio_coroutine_enter(AioContext *ctx, Coroutine *co) { Coroutine *self = qemu_coroutine_self(); CoroutineAction ret; - trace_qemu_coroutine_enter(self, co, co->entry_arg); + trace_qemu_aio_coroutine_enter(ctx, self, co, co->entry_arg); if (co->caller) { fprintf(stderr, "Co-routine re-entered recursively\n"); @@ -115,7 +115,7 @@ void qemu_coroutine_enter(Coroutine *co) } co->caller = self; - co->ctx = qemu_get_current_aio_context(); + co->ctx = ctx; /* Store co->ctx before anything that stores co. Matches * barrier in aio_co_wake and qemu_co_mutex_wake. @@ -139,6 +139,11 @@ void qemu_coroutine_enter(Coroutine *co) } } +void qemu_coroutine_enter(Coroutine *co) +{ + qemu_aio_coroutine_enter(qemu_get_current_aio_context(), co); +} + void qemu_coroutine_enter_if_inactive(Coroutine *co) { if (!qemu_coroutine_entered(co)) { diff --git a/util/trace-events b/util/trace-events index ac27d94..b44ef4f 100644 --- a/util/trace-events +++ b/util/trace-events @@ -22,7 +22,7 @@ buffer_move(const char *buf, size_t len, const char *from) "%s: %zd bytes from % buffer_free(const char *buf, size_t len) "%s: capacity %zd" # util/qemu-coroutine.c -qemu_coroutine_enter(void *from, void *to, void *opaque) "from %p to %p opaque %p" +qemu_aio_coroutine_enter(void *ctx, void *from, void *to, void *opaque) "ctx %p from %p to %p opaque %p" qemu_coroutine_yield(void *from, void *to) "from %p to %p" qemu_coroutine_terminate(void *co) "self %p" -- 2.9.3