From nobody Sun Feb 8 19:38:14 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; dkim=fail; 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=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1564508305; cv=none; d=zoho.com; s=zohoarc; b=KTPIemUgfTTkN7tzYIKOmS3LcQDn1W1yIoPu4f18YBfNvflcnPoeY2SFgQ0HJTnWRGS+0qPGGoJUPhfMUyIS1n+QibuUvKWsQgDTbSGFpTCF70632K9kOF9N4Ut4fazrrDgmo2AzI15CC4C0r0iffYv1nZr9UN6s1bbSMcpshOo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1564508305; 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; bh=LR9iVRChMwWQAhc5h02KM+c31gdyfKaD2veUCMmmXek=; b=K8y4+uhCgCfnOdOiPeSHhrnzkP+7svWnMSUeGkjHTW9WUxn+7mD2CXHBfA2vmkkAN6yGpkSMVA7uCa40rA1ikx+CgOpp2KEr7AaL/nnxhrtEQvkpQ3Mf2D7gZeLtNDHzxTUa5AL6yBE32htVaIS02QyIHlGN3aa3gdhBs8fn4Ms= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=fail; 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 header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1564508305587472.7850577330589; Tue, 30 Jul 2019 10:38:25 -0700 (PDT) Received: from localhost ([::1]:35142 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hsW4u-0007zD-LW for importer@patchew.org; Tue, 30 Jul 2019 13:38:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35686) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hsW2l-00056p-Pi for qemu-devel@nongnu.org; Tue, 30 Jul 2019 13:36:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hsW2i-0000I7-F8 for qemu-devel@nongnu.org; Tue, 30 Jul 2019 13:36:11 -0400 Received: from mail-pf1-x444.google.com ([2607:f8b0:4864:20::444]:36270) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hsW2i-0000GV-9I; Tue, 30 Jul 2019 13:36:08 -0400 Received: by mail-pf1-x444.google.com with SMTP id r7so30210150pfl.3; Tue, 30 Jul 2019 10:36:03 -0700 (PDT) Received: from localhost.localdomain ([136.233.9.97]) by smtp.gmail.com with ESMTPSA id q24sm59122895pjp.14.2019.07.30.10.35.56 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Tue, 30 Jul 2019 10:36:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=LR9iVRChMwWQAhc5h02KM+c31gdyfKaD2veUCMmmXek=; b=ljNqGT0v88BWGitSuQxQKxdBATRBE7iYjEir8Vzs1vhSMHNf2w/PO7Raw/WOOJwSLS g9jDSKkHIwHx2dBRvRPLnZN4I4hIHzMoUV6U6RsZHvwM3D4DAEB+VfEY9qHpxqEKb4sV vK9CnjGxN71EdBlec9/WEQJSmFeS9fz29L+UMq6o/NeFEFaqenwxO63b0LjdLEI0uMU0 /Emh1a6wMmmRDNlZwg9VfpFOwwX2slLdUTwaSOQpjzakGCzW8ql7zwzBx1F8iOffj0w9 bFsGfTRX7npRHqbDQc1H18xMy8aCS3Ecil+2sKuiq5HdzHBqxA/cvCRvFfErFkMceLls 53rA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=LR9iVRChMwWQAhc5h02KM+c31gdyfKaD2veUCMmmXek=; b=OlVYX9mUsn1F+4o/Kil3iALxtOpqH6tkfxOx3Cde640DARtjRJ4SLr4LYGT6YhcJhS ys6VFSvqPGGLol1MVY/Shpfg82XXN4t6YU4a+HuxAo/AB48G40FMyZh1TWiUMdlNClit yn/ZNo+uXN/ZnIL3lIUFIrAjx85ZmersVJFI0oRuy3VmDPrGhNJenEJuy42WLzqFdVDI gBvqa3k7su/t2l3HqEcj34/I7TOujDvfHyCpG575oFGXbGfz6c+RW7Hf+KaHqftC4Yjp FOgSl5LC9MlcCpW+ZmsZIDKVyv0SEnoky1w0wjwars4/EJ40KynPgIaoSTgF5bJ3AmBG B0Kg== X-Gm-Message-State: APjAAAXeoptLn+CaLFdRFDBTNd0hiEjPWj70pZVMo2+Qut+oa3RqksVw kmtcgnpw9BZRrGvZCZHR19a9ZxmpbIzHkw== X-Google-Smtp-Source: APXvYqzw5R8eFhUbe7Q6LffvmT2UY0cd+SGO8NIhkQ1AG5GNq3pLAowycUwvGxiLCsBPeamWRZWZdQ== X-Received: by 2002:a62:874d:: with SMTP id i74mr42127209pfe.94.1564508161933; Tue, 30 Jul 2019 10:36:01 -0700 (PDT) From: Aarushi Mehta To: qemu-devel@nongnu.org Date: Tue, 30 Jul 2019 23:04:32 +0530 Message-Id: <20190730173441.26486-8-mehta.aaru20@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190730173441.26486-1-mehta.aaru20@gmail.com> References: <20190730173441.26486-1-mehta.aaru20@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::444 Subject: [Qemu-devel] [PATCH v8 07/16] blockdev: adds bdrv_parse_aio to use io_uring 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: Kevin Wolf , Fam Zheng , Sergio Lopez , qemu-block@nongnu.org, Markus Armbruster , Maxim Levitsky , saket.sinha89@gmail.com, Max Reitz , Stefan Hajnoczi , Paolo Bonzini , Stefan Hajnoczi , Julia Suvorova , Aarushi Mehta Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Signed-off-by: Aarushi Mehta Reviewed-by: Stefan Hajnoczi --- block.c | 22 ++++++++++++++++++++++ blockdev.c | 12 ++++-------- include/block/block.h | 1 + 3 files changed, 27 insertions(+), 8 deletions(-) diff --git a/block.c b/block.c index cbd8da5f3b..401831e28d 100644 --- a/block.c +++ b/block.c @@ -844,6 +844,28 @@ static BlockdevDetectZeroesOptions bdrv_parse_detect_z= eroes(QemuOpts *opts, return detect_zeroes; } =20 +/** + * Set open flags for aio engine + * + * Return 0 on success, -1 if the engine specified is invalid + */ +int bdrv_parse_aio(const char *mode, int *flags) +{ + if (!strcmp(mode, "threads")) { + /* do nothing, default */ + } else if (!strcmp(mode, "native")) { + *flags |=3D BDRV_O_NATIVE_AIO; +#ifdef CONFIG_LINUX_IO_URING + } else if (!strcmp(mode, "io_uring")) { + *flags |=3D BDRV_O_IO_URING; +#endif + } else { + return -1; + } + + return 0; +} + /** * Set open flags for a given discard mode * diff --git a/blockdev.c b/blockdev.c index 4d141e9a1f..a41623ae9a 100644 --- a/blockdev.c +++ b/blockdev.c @@ -383,13 +383,9 @@ static void extract_common_blockdev_options(QemuOpts *= opts, int *bdrv_flags, } =20 if ((aio =3D qemu_opt_get(opts, "aio")) !=3D NULL) { - if (!strcmp(aio, "native")) { - *bdrv_flags |=3D BDRV_O_NATIVE_AIO; - } else if (!strcmp(aio, "threads")) { - /* this is the default */ - } else { - error_setg(errp, "invalid aio option"); - return; + if (bdrv_parse_aio(aio, bdrv_flags) < 0) { + error_setg(errp, "invalid aio option"); + return; } } } @@ -4574,7 +4570,7 @@ QemuOptsList qemu_common_drive_opts =3D { },{ .name =3D "aio", .type =3D QEMU_OPT_STRING, - .help =3D "host AIO implementation (threads, native)", + .help =3D "host AIO implementation (threads, native, io_uring)= ", },{ .name =3D BDRV_OPT_CACHE_WB, .type =3D QEMU_OPT_BOOL, diff --git a/include/block/block.h b/include/block/block.h index e29baa172c..ec6b9ea4c8 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -297,6 +297,7 @@ void bdrv_append(BlockDriverState *bs_new, BlockDriverS= tate *bs_top, void bdrv_replace_node(BlockDriverState *from, BlockDriverState *to, Error **errp); =20 +int bdrv_parse_aio(const char *mode, int *flags); int bdrv_parse_cache_mode(const char *mode, int *flags, bool *writethrough= ); int bdrv_parse_discard_flags(const char *mode, int *flags); BdrvChild *bdrv_open_child(const char *filename, --=20 2.21.0