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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id EB562E77364 for ; Mon, 2 Oct 2023 20:34:39 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qnPat-0003SQ-Ai; Mon, 02 Oct 2023 16:32:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qnPar-0003Rw-Rz for qemu-devel@nongnu.org; Mon, 02 Oct 2023 16:32:41 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qnPaq-0001Tv-3Z for qemu-devel@nongnu.org; Mon, 02 Oct 2023 16:32:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1696278759; 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=FNxOG/drRlkY3d6uhvoOfPq4VgCa4J4atWRHGxUXUNo=; b=gYu+RcGdaa0+e+n4eKIw0QIhluGHlMjcFk5Fhlut5I32PseVYph94bhiY5iYFUaJSKlAp5 d8tmYyHKvmkBDIVDrsCn/GQ5WdHVq8Ymt0M/6Vs3uIISvA20pGA5ovm9EKanyGOidZ873D sevWmlFhUbOFySKdslEAxwXV/KYF5fI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-18-4C9K9IekOE-sXpyArf8PyQ-1; Mon, 02 Oct 2023 16:32:38 -0400 X-MC-Unique: 4C9K9IekOE-sXpyArf8PyQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A1810858F1B; Mon, 2 Oct 2023 20:32:37 +0000 (UTC) Received: from lacos-laptop-9.usersys.redhat.com (unknown [10.39.192.119]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8F76840C6EBF; Mon, 2 Oct 2023 20:32:35 +0000 (UTC) From: Laszlo Ersek To: qemu-devel@nongnu.org, lersek@redhat.com Cc: "Michael S. Tsirkin" , Eugenio Perez Martin , German Maglione , Liu Jiang , Sergio Lopez Pascual , Stefano Garzarella Subject: [PATCH v3 3/7] vhost-user: factor out "vhost_user_write_sync" Date: Mon, 2 Oct 2023 22:32:17 +0200 Message-Id: <20231002203221.17241-4-lersek@redhat.com> In-Reply-To: <20231002203221.17241-1-lersek@redhat.com> References: <20231002203221.17241-1-lersek@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.133.124; envelope-from=lersek@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org VGhlIHRhaWxzIG9mIHRoZSAidmhvc3RfdXNlcl9zZXRfdnJpbmdfYWRkciIgYW5kICJ2aG9zdF91 c2VyX3NldF91NjQiCmZ1bmN0aW9ucyBhcmUgbm93IGJ5dGUtZm9yLWJ5dGUgaWRlbnRpY2FsLiBG YWN0b3IgdGhlIGNvbW1vbiB0YWlsIG91dCB0byBhCm5ldyBmdW5jdGlvbiBjYWxsZWQgInZob3N0 X3VzZXJfd3JpdGVfc3luYyIuCgpUaGlzIGlzIHB1cmVseSByZWZhY3RvcmluZyAtLSBubyBvYnNl cnZhYmxlIGNoYW5nZS4KCkNjOiAiTWljaGFlbCBTLiBUc2lya2luIiA8bXN0QHJlZGhhdC5jb20+ IChzdXBwb3J0ZXI6dmhvc3QpCkNjOiBFdWdlbmlvIFBlcmV6IE1hcnRpbiA8ZXBlcmV6bWFAcmVk aGF0LmNvbT4KQ2M6IEdlcm1hbiBNYWdsaW9uZSA8Z21hZ2xpb25lQHJlZGhhdC5jb20+CkNjOiBM aXUgSmlhbmcgPGdlcnJ5QGxpbnV4LmFsaWJhYmEuY29tPgpDYzogU2VyZ2lvIExvcGV6IFBhc2N1 YWwgPHNscEByZWRoYXQuY29tPgpDYzogU3RlZmFubyBHYXJ6YXJlbGxhIDxzZ2FyemFyZUByZWRo YXQuY29tPgpTaWduZWQtb2ZmLWJ5OiBMYXN6bG8gRXJzZWsgPGxlcnNla0ByZWRoYXQuY29tPgpS ZXZpZXdlZC1ieTogUGhpbGlwcGUgTWF0aGlldS1EYXVkw6kgPHBoaWxtZEBsaW5hcm8ub3JnPgpS ZXZpZXdlZC1ieTogU3RlZmFubyBHYXJ6YXJlbGxhIDxzZ2FyemFyZUByZWRoYXQuY29tPgpUZXN0 ZWQtYnk6IEFsYmVydCBFc3RldmUgPGFlc3RldmVAcmVkaGF0LmNvbT4KUmV2aWV3ZWQtYnk6IEV1 Z2VuaW8gUMOpcmV6IDxlcGVyZXptYUByZWRoYXQuY29tPgotLS0KCk5vdGVzOgogICAgdjM6CiAg ICAKICAgIC0gcGljayB1cCBSLWIgZnJvbSBFdWdlbmlvLCBULWIgZnJvbSBBbGJlcnQKICAgIAog ICAgdjI6CiAgICAKICAgIC0gcGljayB1cCBSLWIncyBmcm9tIFBoaWwgYW5kIFN0ZWZhbm8KICAg IAogICAgLSByZW5hbWUgInZob3N0X3VzZXJfd3JpdGVfbXNnIiB0byAidmhvc3RfdXNlcl93cml0 ZV9zeW5jIiAoaW4gY29kZSBhbmQKICAgICAgY29tbWl0IG1lc3NhZ2UpIFtTdGVmYW5vXQoKIGh3 L3ZpcnRpby92aG9zdC11c2VyLmMgfCA2NiArKysrKysrKystLS0tLS0tLS0tLQogMSBmaWxlIGNo YW5nZWQsIDI4IGluc2VydGlvbnMoKyksIDM4IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2h3 L3ZpcnRpby92aG9zdC11c2VyLmMgYi9ody92aXJ0aW8vdmhvc3QtdXNlci5jCmluZGV4IDY0ZWFj MzE3YmZiMi4uMTQ3NmIzNmYwYTZlIDEwMDY0NAotLS0gYS9ody92aXJ0aW8vdmhvc3QtdXNlci5j CisrKyBiL2h3L3ZpcnRpby92aG9zdC11c2VyLmMKQEAgLTEzMjAsMTAgKzEzMjAsMzUgQEAgc3Rh dGljIGludCBlbmZvcmNlX3JlcGx5KHN0cnVjdCB2aG9zdF9kZXYgKmRldiwKICAgICByZXR1cm4g dmhvc3RfdXNlcl9nZXRfZmVhdHVyZXMoZGV2LCAmZHVtbXkpOwogfQogCisvKiBOb3RlOiAibXNn LT5oZHIuZmxhZ3MiIG1heSBiZSBtb2RpZmllZC4gKi8KK3N0YXRpYyBpbnQgdmhvc3RfdXNlcl93 cml0ZV9zeW5jKHN0cnVjdCB2aG9zdF9kZXYgKmRldiwgVmhvc3RVc2VyTXNnICptc2csCisgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICBib29sIHdhaXRfZm9yX3JlcGx5KQoreworICAg IGludCByZXQ7CisKKyAgICBpZiAod2FpdF9mb3JfcmVwbHkpIHsKKyAgICAgICAgYm9vbCByZXBs eV9zdXBwb3J0ZWQgPSB2aXJ0aW9faGFzX2ZlYXR1cmUoZGV2LT5wcm90b2NvbF9mZWF0dXJlcywK KyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFZIT1NUX1VTRVJfUFJP VE9DT0xfRl9SRVBMWV9BQ0spOworICAgICAgICBpZiAocmVwbHlfc3VwcG9ydGVkKSB7CisgICAg ICAgICAgICBtc2ctPmhkci5mbGFncyB8PSBWSE9TVF9VU0VSX05FRURfUkVQTFlfTUFTSzsKKyAg ICAgICAgfQorICAgIH0KKworICAgIHJldCA9IHZob3N0X3VzZXJfd3JpdGUoZGV2LCBtc2csIE5V TEwsIDApOworICAgIGlmIChyZXQgPCAwKSB7CisgICAgICAgIHJldHVybiByZXQ7CisgICAgfQor CisgICAgaWYgKHdhaXRfZm9yX3JlcGx5KSB7CisgICAgICAgIHJldHVybiBlbmZvcmNlX3JlcGx5 KGRldiwgbXNnKTsKKyAgICB9CisKKyAgICByZXR1cm4gMDsKK30KKwogc3RhdGljIGludCB2aG9z dF91c2VyX3NldF92cmluZ19hZGRyKHN0cnVjdCB2aG9zdF9kZXYgKmRldiwKICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICBzdHJ1Y3Qgdmhvc3RfdnJpbmdfYWRkciAqYWRkcikK IHsKLSAgICBpbnQgcmV0OwogICAgIFZob3N0VXNlck1zZyBtc2cgPSB7CiAgICAgICAgIC5oZHIu cmVxdWVzdCA9IFZIT1NUX1VTRVJfU0VUX1ZSSU5HX0FERFIsCiAgICAgICAgIC5oZHIuZmxhZ3Mg PSBWSE9TVF9VU0VSX1ZFUlNJT04sCkBAIC0xMzM3LDI0ICsxMzYyLDcgQEAgc3RhdGljIGludCB2 aG9zdF91c2VyX3NldF92cmluZ19hZGRyKHN0cnVjdCB2aG9zdF9kZXYgKmRldiwKICAgICAgKi8K ICAgICBib29sIHdhaXRfZm9yX3JlcGx5ID0gYWRkci0+ZmxhZ3MgJiAoMSA8PCBWSE9TVF9WUklO R19GX0xPRyk7CiAKLSAgICBpZiAod2FpdF9mb3JfcmVwbHkpIHsKLSAgICAgICAgYm9vbCByZXBs eV9zdXBwb3J0ZWQgPSB2aXJ0aW9faGFzX2ZlYXR1cmUoZGV2LT5wcm90b2NvbF9mZWF0dXJlcywK LSAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFZIT1NUX1VTRVJfUFJP VE9DT0xfRl9SRVBMWV9BQ0spOwotICAgICAgICBpZiAocmVwbHlfc3VwcG9ydGVkKSB7Ci0gICAg ICAgICAgICBtc2cuaGRyLmZsYWdzIHw9IFZIT1NUX1VTRVJfTkVFRF9SRVBMWV9NQVNLOwotICAg ICAgICB9Ci0gICAgfQotCi0gICAgcmV0ID0gdmhvc3RfdXNlcl93cml0ZShkZXYsICZtc2csIE5V TEwsIDApOwotICAgIGlmIChyZXQgPCAwKSB7Ci0gICAgICAgIHJldHVybiByZXQ7Ci0gICAgfQot Ci0gICAgaWYgKHdhaXRfZm9yX3JlcGx5KSB7Ci0gICAgICAgIHJldHVybiBlbmZvcmNlX3JlcGx5 KGRldiwgJm1zZyk7Ci0gICAgfQotCi0gICAgcmV0dXJuIDA7CisgICAgcmV0dXJuIHZob3N0X3Vz ZXJfd3JpdGVfc3luYyhkZXYsICZtc2csIHdhaXRfZm9yX3JlcGx5KTsKIH0KIAogc3RhdGljIGlu dCB2aG9zdF91c2VyX3NldF91NjQoc3RydWN0IHZob3N0X2RldiAqZGV2LCBpbnQgcmVxdWVzdCwg dWludDY0X3QgdTY0LApAQCAtMTM2NiwyNiArMTM3NCw4IEBAIHN0YXRpYyBpbnQgdmhvc3RfdXNl cl9zZXRfdTY0KHN0cnVjdCB2aG9zdF9kZXYgKmRldiwgaW50IHJlcXVlc3QsIHVpbnQ2NF90IHU2 NCwKICAgICAgICAgLnBheWxvYWQudTY0ID0gdTY0LAogICAgICAgICAuaGRyLnNpemUgPSBzaXpl b2YobXNnLnBheWxvYWQudTY0KSwKICAgICB9OwotICAgIGludCByZXQ7CiAKLSAgICBpZiAod2Fp dF9mb3JfcmVwbHkpIHsKLSAgICAgICAgYm9vbCByZXBseV9zdXBwb3J0ZWQgPSB2aXJ0aW9faGFz X2ZlYXR1cmUoZGV2LT5wcm90b2NvbF9mZWF0dXJlcywKLSAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgIFZIT1NUX1VTRVJfUFJPVE9DT0xfRl9SRVBMWV9BQ0spOwotICAg ICAgICBpZiAocmVwbHlfc3VwcG9ydGVkKSB7Ci0gICAgICAgICAgICBtc2cuaGRyLmZsYWdzIHw9 IFZIT1NUX1VTRVJfTkVFRF9SRVBMWV9NQVNLOwotICAgICAgICB9Ci0gICAgfQotCi0gICAgcmV0 ID0gdmhvc3RfdXNlcl93cml0ZShkZXYsICZtc2csIE5VTEwsIDApOwotICAgIGlmIChyZXQgPCAw KSB7Ci0gICAgICAgIHJldHVybiByZXQ7Ci0gICAgfQotCi0gICAgaWYgKHdhaXRfZm9yX3JlcGx5 KSB7Ci0gICAgICAgIHJldHVybiBlbmZvcmNlX3JlcGx5KGRldiwgJm1zZyk7Ci0gICAgfQotCi0g ICAgcmV0dXJuIDA7CisgICAgcmV0dXJuIHZob3N0X3VzZXJfd3JpdGVfc3luYyhkZXYsICZtc2cs IHdhaXRfZm9yX3JlcGx5KTsKIH0KIAogc3RhdGljIGludCB2aG9zdF91c2VyX3NldF9zdGF0dXMo c3RydWN0IHZob3N0X2RldiAqZGV2LCB1aW50OF90IHN0YXR1cykKCg==