From nobody Wed Feb 11 05:17:41 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1491913854588127.93234272604889; Tue, 11 Apr 2017 05:30:54 -0700 (PDT) Received: from localhost ([::1]:39046 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxuwf-0007TE-9i for importer@patchew.org; Tue, 11 Apr 2017 08:30:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39148) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxuso-00046i-Qi for qemu-devel@nongnu.org; Tue, 11 Apr 2017 08:26:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cxuso-0003uF-1d for qemu-devel@nongnu.org; Tue, 11 Apr 2017 08:26:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45964) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cxusn-0003tH-Ro for qemu-devel@nongnu.org; Tue, 11 Apr 2017 08:26:53 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D665E8046C; Tue, 11 Apr 2017 12:26:52 +0000 (UTC) Received: from lemon.redhat.com (ovpn-8-27.pek2.redhat.com [10.72.8.27]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4A4FF8E89E; Tue, 11 Apr 2017 12:26:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com D665E8046C Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=famz@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com D665E8046C From: Fam Zheng To: qemu-devel@nongnu.org Date: Tue, 11 Apr 2017 20:26:26 +0800 Message-Id: <20170411122632.14050-6-famz@redhat.com> In-Reply-To: <20170411122632.14050-1-famz@redhat.com> References: <20170411122632.14050-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Tue, 11 Apr 2017 12:26:53 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 05/11] async: Introduce aio_co_enter X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , famz@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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 677b6ff..406e323 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -511,6 +511,15 @@ void aio_co_schedule(AioContext *ctx, struct Coroutine= *co); void aio_co_wake(struct Coroutine *co); =20 /** + * 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. * * If called from an IOThread this will be the IOThread's AioContext. If diff --git a/util/async.c b/util/async.c index 663e297..355af73 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 =3D atomic_read(&co->ctx); =20 + aio_co_enter(ctx, co); +} + +void aio_co_enter(AioContext *ctx, struct Coroutine *co) +{ if (ctx !=3D 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); } } --=20 2.9.3