From nobody Mon Feb 9 07:23:04 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1570450847; cv=none; d=zoho.com; s=zohoarc; b=X0mHWf+pzr4RcuVamOcspEdM0lptjoaxAQppBJgTddUA2AGDSUnv2AYwE681dcpUEtocSU3Vy2uRjXE20oWXDZZn9UtMBjyNWGtEn2p6FmEa0kE8O0ZE9yNuNPPv4sXv6E3rtU7D/zIQ2X0sS0LQuzPNBpCUymiemvITSEjhdRI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1570450847; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; 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Mon, 07 Oct 2019 08:10:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iHRqN-0003vu-2A for qemu-devel@nongnu.org; Mon, 07 Oct 2019 08:10:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:36784) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iHRqK-0003oD-Ho; Mon, 07 Oct 2019 08:10:24 -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 C41653082B40; Mon, 7 Oct 2019 12:10:23 +0000 (UTC) Received: from localhost (unknown [10.36.118.98]) by smtp.corp.redhat.com (Postfix) with ESMTP id 303D75C1D4; Mon, 7 Oct 2019 12:10:15 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PATCH 06/16] util/async: add aio interfaces for io_uring Date: Mon, 7 Oct 2019 13:09:27 +0100 Message-Id: <20191007120937.5862-7-stefanha@redhat.com> In-Reply-To: <20191007120937.5862-1-stefanha@redhat.com> References: <20191007120937.5862-1-stefanha@redhat.com> MIME-Version: 1.0 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 [10.5.110.45]); Mon, 07 Oct 2019 12:10:23 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: oleksandr@redhat.com, Kevin Wolf , qemu-block@nongnu.org, Julia Suvorova , Julia Suvorova , Markus Armbruster , Max Reitz , Stefan Hajnoczi , Paolo Bonzini , Fam Zheng , Aarushi Mehta Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" From: Aarushi Mehta Signed-off-by: Aarushi Mehta Signed-off-by: Stefan Hajnoczi --- util/async.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/util/async.c b/util/async.c index 4e4c7af51e..f8502a9310 100644 --- a/util/async.c +++ b/util/async.c @@ -276,6 +276,14 @@ aio_ctx_finalize(GSource *source) } #endif =20 +#ifdef CONFIG_LINUX_IO_URING + if (ctx->linux_io_uring) { + luring_detach_aio_context(ctx->linux_io_uring, ctx); + luring_cleanup(ctx->linux_io_uring); + ctx->linux_io_uring =3D NULL; + } +#endif + assert(QSLIST_EMPTY(&ctx->scheduled_coroutines)); qemu_bh_delete(ctx->co_schedule_bh); =20 @@ -340,6 +348,29 @@ LinuxAioState *aio_get_linux_aio(AioContext *ctx) } #endif =20 +#ifdef CONFIG_LINUX_IO_URING +LuringState *aio_setup_linux_io_uring(AioContext *ctx, Error **errp) +{ + if (ctx->linux_io_uring) { + return ctx->linux_io_uring; + } + + ctx->linux_io_uring =3D luring_init(errp); + if (!ctx->linux_io_uring) { + return NULL; + } + + luring_attach_aio_context(ctx->linux_io_uring, ctx); + return ctx->linux_io_uring; +} + +LuringState *aio_get_linux_io_uring(AioContext *ctx) +{ + assert(ctx->linux_io_uring); + return ctx->linux_io_uring; +} +#endif + void aio_notify(AioContext *ctx) { /* Write e.g. bh->scheduled before reading ctx->notify_me. Pairs @@ -431,6 +462,11 @@ AioContext *aio_context_new(Error **errp) #ifdef CONFIG_LINUX_AIO ctx->linux_aio =3D NULL; #endif + +#ifdef CONFIG_LINUX_IO_URING + ctx->linux_io_uring =3D NULL; +#endif + ctx->thread_pool =3D NULL; qemu_rec_mutex_init(&ctx->lock); timerlistgroup_init(&ctx->tlg, aio_timerlist_notify, ctx); --=20 2.21.0