From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MIME_BASE64_TEXT,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9822C2BB55 for ; Thu, 9 Apr 2020 17:43:24 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AB70620769 for ; Thu, 9 Apr 2020 17:43:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="Wv7xAHPj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AB70620769 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:53398 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jMbD1-000745-UU for qemu-devel@archiver.kernel.org; Thu, 09 Apr 2020 13:43:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39483) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jMbC9-0005TD-JI for qemu-devel@nongnu.org; Thu, 09 Apr 2020 13:42:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jMbC7-0006pm-8W for qemu-devel@nongnu.org; Thu, 09 Apr 2020 13:42:29 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:51682 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jMbC7-0006pU-4t for qemu-devel@nongnu.org; Thu, 09 Apr 2020 13:42:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586454146; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0zq38BUlrj/isy7pME+Q9jm+00Jwv5PAkZjHQUQ5kxo=; b=Wv7xAHPjNkDHAUEll4tqvlPFYtZEqIq+JvwhWmhHcbF/a3meLT0Mt/yeFoIKsUIPHZlHzy n2JO3HO0RWm5CULC0v6SGjUusvmQQE7ena2EecYpSxBTtj3oIYGxctZTnCG53zs00kea6L LP4pECKbaFnDjiEtNNeKIZPyAa9qJVM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-197-NgQl9B4HPLSsDAxMoL9b9g-1; Thu, 09 Apr 2020 13:42:24 -0400 X-MC-Unique: NgQl9B4HPLSsDAxMoL9b9g-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6EEEA1922963; Thu, 9 Apr 2020 17:42:23 +0000 (UTC) Received: from localhost (ovpn-114-141.ams2.redhat.com [10.36.114.141]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0819C1195A6; Thu, 9 Apr 2020 17:42:22 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PULL for-5.0 2/3] aio-wait: delegate polling of main AioContext if BQL not held Date: Thu, 9 Apr 2020 18:42:08 +0100 Message-Id: <20200409174209.321725-3-stefanha@redhat.com> In-Reply-To: <20200409174209.321725-1-stefanha@redhat.com> References: <20200409174209.321725-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: base64 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 207.211.31.81 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 , Peter Maydell , qemu-block@nongnu.org, Stefan Weil , Max Reitz , Stefan Hajnoczi , Paolo Bonzini , Fam Zheng Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" RnJvbTogUGFvbG8gQm9uemluaSA8cGJvbnppbmlAcmVkaGF0LmNvbT4KCkFueSB0aHJlYWQgdGhh dCBpcyBub3QgYSBpb3RocmVhZCByZXR1cm5zIE5VTEwgZm9yIHFlbXVfZ2V0X2N1cnJlbnRfYWlv X2NvbnRleHQoKS4KQXMgYSByZXN1bHQsIGl0IHdvdWxkIGFsc28gcmV0dXJuIHRydWUgZm9yCmlu X2Fpb19jb250ZXh0X2hvbWVfdGhyZWFkKHFlbXVfZ2V0X2Fpb19jb250ZXh0KCkpLCBjYXVzaW5n CkFJT19XQUlUX1dISUxFIHRvIGludm9rZSBhaW9fcG9sbCgpIGRpcmVjdGx5LiAgVGhpcyBpcyBp bmNvcnJlY3QKaWYgdGhlIEJRTCBpcyBub3QgaGVsZCwgYmVjYXVzZSBhaW9fcG9sbCgpIGRvZXMg bm90IGV4cGVjdCB0bwpydW4gY29uY3VycmVudGx5IGZyb20gbXVsdGlwbGUgdGhyZWFkcywgYW5k IGl0IGNhbiBhY3R1YWxseQpoYXBwZW4gd2hlbiBzYXZldm0gd3JpdGVzIHRvIHRoZSB2bXN0YXRl IGZpbGUgZnJvbSB0aGUKbWlncmF0aW9uIHRocmVhZC4KClRoZXJlZm9yZSwgcmVzdHJpY3QgaW5f YWlvX2NvbnRleHRfaG9tZV90aHJlYWQgdG8gcmV0dXJuIHRydWUKZm9yIHRoZSBtYWluIEFpb0Nv bnRleHQgb25seSBpZiB0aGUgQlFMIGlzIGhlbGQuCgpUaGUgZnVuY3Rpb24gaXMgbW92ZWQgdG8g YWlvLXdhaXQuaCBiZWNhdXNlIGl0IGlzIG1vc3RseSB1c2VkCnRoZXJlIGFuZCB0byBhdm9pZCBh IGNpcmN1bGFyIHJlZmVyZW5jZSBiZXR3ZWVuIG1haW4tbG9vcC5oCmFuZCBibG9jay9haW8uaC4K ClNpZ25lZC1vZmYtYnk6IFBhb2xvIEJvbnppbmkgPHBib256aW5pQHJlZGhhdC5jb20+Ck1lc3Nh Z2UtSWQ6IDwyMDIwMDQwNzE0MDc0Ni44MDQxLTUtcGJvbnppbmlAcmVkaGF0LmNvbT4KU2lnbmVk LW9mZi1ieTogU3RlZmFuIEhham5vY3ppIDxzdGVmYW5oYUByZWRoYXQuY29tPgotLS0KIGluY2x1 ZGUvYmxvY2svYWlvLXdhaXQuaCB8IDIyICsrKysrKysrKysrKysrKysrKysrKysKIGluY2x1ZGUv YmxvY2svYWlvLmggICAgICB8IDI5ICsrKysrKysrKystLS0tLS0tLS0tLS0tLS0tLS0tCiAyIGZp bGVzIGNoYW5nZWQsIDMyIGluc2VydGlvbnMoKyksIDE5IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdp dCBhL2luY2x1ZGUvYmxvY2svYWlvLXdhaXQuaCBiL2luY2x1ZGUvYmxvY2svYWlvLXdhaXQuaApp bmRleCBhZmVlYjE4Zjk1Li43MTZkMjYzOWRmIDEwMDY0NAotLS0gYS9pbmNsdWRlL2Jsb2NrL2Fp by13YWl0LmgKKysrIGIvaW5jbHVkZS9ibG9jay9haW8td2FpdC5oCkBAIC0yNiw2ICsyNiw3IEBA CiAjZGVmaW5lIFFFTVVfQUlPX1dBSVRfSAogCiAjaW5jbHVkZSAiYmxvY2svYWlvLmgiCisjaW5j bHVkZSAicWVtdS9tYWluLWxvb3AuaCIKIAogLyoqCiAgKiBBaW9XYWl0OgpAQCAtMTI0LDQgKzEy NSwyNSBAQCB2b2lkIGFpb193YWl0X2tpY2sodm9pZCk7CiAgKi8KIHZvaWQgYWlvX3dhaXRfYmhf b25lc2hvdChBaW9Db250ZXh0ICpjdHgsIFFFTVVCSEZ1bmMgKmNiLCB2b2lkICpvcGFxdWUpOwog CisvKioKKyAqIGluX2Fpb19jb250ZXh0X2hvbWVfdGhyZWFkOgorICogQGN0eDogdGhlIGFpbyBj b250ZXh0CisgKgorICogUmV0dXJuIHdoZXRoZXIgd2UgYXJlIHJ1bm5pbmcgaW4gdGhlIHRocmVh ZCB0aGF0IG5vcm1hbGx5IHJ1bnMgQGN0eC4gIE5vdGUKKyAqIHRoYXQgYWNxdWlyaW5nL3JlbGVh c2luZyBjdHggZG9lcyBub3QgYWZmZWN0IHRoZSBvdXRjb21lLCBlYWNoIEFpb0NvbnRleHQKKyAq IHN0aWxsIG9ubHkgaGFzIG9uZSBob21lIHRocmVhZCB0aGF0IGlzIHJlc3BvbnNpYmxlIGZvciBy dW5uaW5nIGl0LgorICovCitzdGF0aWMgaW5saW5lIGJvb2wgaW5fYWlvX2NvbnRleHRfaG9tZV90 aHJlYWQoQWlvQ29udGV4dCAqY3R4KQoreworICAgIGlmIChjdHggPT0gcWVtdV9nZXRfY3VycmVu dF9haW9fY29udGV4dCgpKSB7CisgICAgICAgIHJldHVybiB0cnVlOworICAgIH0KKworICAgIGlm IChjdHggPT0gcWVtdV9nZXRfYWlvX2NvbnRleHQoKSkgeworICAgICAgICByZXR1cm4gcWVtdV9t dXRleF9pb3RocmVhZF9sb2NrZWQoKTsKKyAgICB9IGVsc2UgeworICAgICAgICByZXR1cm4gZmFs c2U7CisgICAgfQorfQorCiAjZW5kaWYgLyogUUVNVV9BSU9fV0FJVF9IICovCmRpZmYgLS1naXQg YS9pbmNsdWRlL2Jsb2NrL2Fpby5oIGIvaW5jbHVkZS9ibG9jay9haW8uaAppbmRleCBjYjE5ODkx MDVhLi42MmVkOTU0MzQ0IDEwMDY0NAotLS0gYS9pbmNsdWRlL2Jsb2NrL2Fpby5oCisrKyBiL2lu Y2x1ZGUvYmxvY2svYWlvLmgKQEAgLTEzMywxMiArMTMzLDE2IEBAIHN0cnVjdCBBaW9Db250ZXh0 IHsKICAgICBBaW9IYW5kbGVyTGlzdCBkZWxldGVkX2Fpb19oYW5kbGVyczsKIAogICAgIC8qIFVz ZWQgdG8gYXZvaWQgdW5uZWNlc3NhcnkgZXZlbnRfbm90aWZpZXJfc2V0IGNhbGxzIGluIGFpb19u b3RpZnk7Ci0gICAgICogYWNjZXNzZWQgd2l0aCBhdG9taWMgcHJpbWl0aXZlcy4gIElmIHRoaXMg ZmllbGQgaXMgMCwgZXZlcnl0aGluZwotICAgICAqIChmaWxlIGRlc2NyaXB0b3JzLCBib3R0b20g aGFsdmVzLCB0aW1lcnMpIHdpbGwgYmUgcmUtZXZhbHVhdGVkCi0gICAgICogYmVmb3JlIHRoZSBu ZXh0IGJsb2NraW5nIHBvbGwoKSwgdGh1cyB0aGUgZXZlbnRfbm90aWZpZXJfc2V0IGNhbGwKLSAg ICAgKiBjYW4gYmUgc2tpcHBlZC4gIElmIGl0IGlzIG5vbi16ZXJvLCB5b3UgbWF5IG5lZWQgdG8g d2FrZSB1cCBhCi0gICAgICogY29uY3VycmVudCBhaW9fcG9sbCBvciB0aGUgZ2xpYiBtYWluIGV2 ZW50IGxvb3AsIG1ha2luZwotICAgICAqIGV2ZW50X25vdGlmaWVyX3NldCBuZWNlc3NhcnkuCisg ICAgICogb25seSB3cml0dGVuIGZyb20gdGhlIEFpb0NvbnRleHQgaG9tZSB0aHJlYWQsIG9yIHVu ZGVyIHRoZSBCUUwgaW4KKyAgICAgKiB0aGUgY2FzZSBvZiB0aGUgbWFpbiBBaW9Db250ZXh0LiAg SG93ZXZlciwgaXQgaXMgcmVhZCBmcm9tIGFueQorICAgICAqIHRocmVhZCBzbyBpdCBpcyBzdGls bCBhY2Nlc3NlZCB3aXRoIGF0b21pYyBwcmltaXRpdmVzLgorICAgICAqCisgICAgICogSWYgdGhp cyBmaWVsZCBpcyAwLCBldmVyeXRoaW5nIChmaWxlIGRlc2NyaXB0b3JzLCBib3R0b20gaGFsdmVz LAorICAgICAqIHRpbWVycykgd2lsbCBiZSByZS1ldmFsdWF0ZWQgYmVmb3JlIHRoZSBuZXh0IGJs b2NraW5nIHBvbGwoKSBvcgorICAgICAqIGlvX3VyaW5nIHdhaXQ7IHRoZXJlZm9yZSwgdGhlIGV2 ZW50X25vdGlmaWVyX3NldCBjYWxsIGNhbiBiZQorICAgICAqIHNraXBwZWQuICBJZiBpdCBpcyBu b24temVybywgeW91IG1heSBuZWVkIHRvIHdha2UgdXAgYSBjb25jdXJyZW50CisgICAgICogYWlv X3BvbGwgb3IgdGhlIGdsaWIgbWFpbiBldmVudCBsb29wLCBtYWtpbmcgZXZlbnRfbm90aWZpZXJf c2V0CisgICAgICogbmVjZXNzYXJ5LgogICAgICAqCiAgICAgICogQml0IDAgaXMgcmVzZXJ2ZWQg Zm9yIEdTb3VyY2UgdXNhZ2Ugb2YgdGhlIEFpb0NvbnRleHQsIGFuZCBpcyAxCiAgICAgICogYmV0 d2VlbiBhIGNhbGwgdG8gYWlvX2N0eF9wcmVwYXJlIGFuZCB0aGUgbmV4dCBjYWxsIHRvIGFpb19j dHhfY2hlY2suCkBAIC02ODEsMTkgKzY4NSw2IEBAIHZvaWQgYWlvX2NvX2VudGVyKEFpb0NvbnRl eHQgKmN0eCwgc3RydWN0IENvcm91dGluZSAqY28pOwogICovCiBBaW9Db250ZXh0ICpxZW11X2dl dF9jdXJyZW50X2Fpb19jb250ZXh0KHZvaWQpOwogCi0vKioKLSAqIGluX2Fpb19jb250ZXh0X2hv bWVfdGhyZWFkOgotICogQGN0eDogdGhlIGFpbyBjb250ZXh0Ci0gKgotICogUmV0dXJuIHdoZXRo ZXIgd2UgYXJlIHJ1bm5pbmcgaW4gdGhlIHRocmVhZCB0aGF0IG5vcm1hbGx5IHJ1bnMgQGN0eC4g IE5vdGUKLSAqIHRoYXQgYWNxdWlyaW5nL3JlbGVhc2luZyBjdHggZG9lcyBub3QgYWZmZWN0IHRo ZSBvdXRjb21lLCBlYWNoIEFpb0NvbnRleHQKLSAqIHN0aWxsIG9ubHkgaGFzIG9uZSBob21lIHRo cmVhZCB0aGF0IGlzIHJlc3BvbnNpYmxlIGZvciBydW5uaW5nIGl0LgotICovCi1zdGF0aWMgaW5s aW5lIGJvb2wgaW5fYWlvX2NvbnRleHRfaG9tZV90aHJlYWQoQWlvQ29udGV4dCAqY3R4KQotewot ICAgIHJldHVybiBjdHggPT0gcWVtdV9nZXRfY3VycmVudF9haW9fY29udGV4dCgpOwotfQotCiAv KioKICAqIGFpb19jb250ZXh0X3NldHVwOgogICogQGN0eDogdGhlIGFpbyBjb250ZXh0Ci0tIAoy LjI1LjEKCg==