From nobody Mon Feb 9 08:55:17 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1639392393318212.0186338406112; Mon, 13 Dec 2021 02:46:33 -0800 (PST) Received: from localhost ([::1]:55850 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mwiqm-0003AD-BK for importer@patchew.org; Mon, 13 Dec 2021 05:46:32 -0500 Received: from eggs.gnu.org ([209.51.188.92]:39068) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mwilk-0002xI-9s for qemu-devel@nongnu.org; Mon, 13 Dec 2021 05:41:20 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:53492) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mwili-0007oP-8C for qemu-devel@nongnu.org; Mon, 13 Dec 2021 05:41:19 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-473-QG7ZLh98OgCUhoRooeafhg-1; Mon, 13 Dec 2021 05:41:11 -0500 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 mimecast-mx01.redhat.com (Postfix) with ESMTPS id 9C027102CB73; Mon, 13 Dec 2021 10:41:10 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id B5FE66B8EA; Mon, 13 Dec 2021 10:40:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639392077; 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=cVd1vHCe8dL2//q6DTsC0467/dR+xKXi+J9NI88sMKA=; b=gCjHbS6x5qX2kNK8n72tvQCrYUC+EapzXT8/jl5KexnVauhzV0yAtGIH9t/sWJhSVXd4qj CisnodSF8B372e7C4zU/neaoFKLptqo/8UaKVisu9enD85LXn+TJL0SpLXNAkDVGeMKWLm fBxvVJN7BKAd+3M64MafuLmI7t9Et40= X-MC-Unique: QG7ZLh98OgCUhoRooeafhg-1 From: Emanuele Giuseppe Esposito To: qemu-block@nongnu.org Subject: [RFC PATCH 1/6] tests/unit/test-bdrv-drain.c: graph setup functions can't run in coroutines Date: Mon, 13 Dec 2021 05:40:09 -0500 Message-Id: <20211213104014.69858-2-eesposit@redhat.com> In-Reply-To: <20211213104014.69858-1-eesposit@redhat.com> References: <20211213104014.69858-1-eesposit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eesposit@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.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; Received-SPF: pass client-ip=170.10.129.124; envelope-from=eesposit@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.713, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: , Cc: Kevin Wolf , Fam Zheng , Emanuele Giuseppe Esposito , qemu-devel@nongnu.org, Hanna Reitz , Stefan Hajnoczi , Paolo Bonzini Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1639392395023100001 Content-Type: text/plain; charset="utf-8" Graph initialization functions like blk_new(), bdrv_new() and so on should not run in a coroutine. In fact, they might invoke a drain (for example blk_insert_bs eventually calls bdrv_replace_child_noperm) that in turn can invoke callbacks like bdrv_do_drained_begin_quiesce(), that asserts exactly that we are not in a coroutine. Move the initialization phase of test_drv_cb and test_quiesce_common outside the coroutine logic. Signed-off-by: Emanuele Giuseppe Esposito --- tests/unit/test-bdrv-drain.c | 118 ++++++++++++++++++++++------------- 1 file changed, 73 insertions(+), 45 deletions(-) diff --git a/tests/unit/test-bdrv-drain.c b/tests/unit/test-bdrv-drain.c index 83485a33aa..a62e6451a1 100644 --- a/tests/unit/test-bdrv-drain.c +++ b/tests/unit/test-bdrv-drain.c @@ -116,7 +116,8 @@ static void aio_ret_cb(void *opaque, int ret) } =20 typedef struct CallInCoroutineData { - void (*entry)(void); + void (*entry)(void *); + void *arg; bool done; } CallInCoroutineData; =20 @@ -124,15 +125,16 @@ static coroutine_fn void call_in_coroutine_entry(void= *opaque) { CallInCoroutineData *data =3D opaque; =20 - data->entry(); + data->entry(data->arg); data->done =3D true; } =20 -static void call_in_coroutine(void (*entry)(void)) +static void call_in_coroutine(void (*entry)(void *), void *arg) { Coroutine *co; CallInCoroutineData data =3D { .entry =3D entry, + .arg =3D arg, .done =3D false, }; =20 @@ -192,26 +194,28 @@ static void do_drain_end_unlocked(enum drain_type dra= in_type, BlockDriverState * } } =20 -static void test_drv_cb_common(enum drain_type drain_type, bool recursive) -{ +typedef struct TestDriverCBData { + enum drain_type drain_type; + bool recursive; BlockBackend *blk; BlockDriverState *bs, *backing; - BDRVTestState *s, *backing_s; +} TestDriverCBData; + +static void test_drv_cb_common(void *arg) +{ + TestDriverCBData *data =3D arg; + BlockBackend *blk =3D data->blk; + BlockDriverState *bs =3D data->bs; + BlockDriverState *backing =3D data->backing; + enum drain_type drain_type =3D data->drain_type; + bool recursive =3D data->recursive; + BDRVTestState *s =3D bs->opaque; + BDRVTestState *backing_s =3D backing->opaque; BlockAIOCB *acb; int aio_ret; =20 QEMUIOVector qiov =3D QEMU_IOVEC_INIT_BUF(qiov, NULL, 0); =20 - blk =3D blk_new(qemu_get_aio_context(), BLK_PERM_ALL, BLK_PERM_ALL); - bs =3D bdrv_new_open_driver(&bdrv_test, "test-node", BDRV_O_RDWR, - &error_abort); - s =3D bs->opaque; - blk_insert_bs(blk, bs, &error_abort); - - backing =3D bdrv_new_open_driver(&bdrv_test, "backing", 0, &error_abor= t); - backing_s =3D backing->opaque; - bdrv_set_backing_hd(bs, backing, &error_abort); - /* Simple bdrv_drain_all_begin/end pair, check that CBs are called */ g_assert_cmpint(s->drain_count, =3D=3D, 0); g_assert_cmpint(backing_s->drain_count, =3D=3D, 0); @@ -245,54 +249,77 @@ static void test_drv_cb_common(enum drain_type drain_= type, bool recursive) =20 g_assert_cmpint(s->drain_count, =3D=3D, 0); g_assert_cmpint(backing_s->drain_count, =3D=3D, 0); +} =20 - bdrv_unref(backing); - bdrv_unref(bs); - blk_unref(blk); +static void test_common_cb(enum drain_type drain_type, bool in_coroutine, + void (*cb)(void *)) +{ + TestDriverCBData data; + + data.drain_type =3D drain_type; + data.recursive =3D (drain_type !=3D BDRV_DRAIN); + + data.blk =3D blk_new(qemu_get_aio_context(), BLK_PERM_ALL, BLK_PERM_AL= L); + data.bs =3D bdrv_new_open_driver(&bdrv_test, "test-node", BDRV_O_RDWR, + &error_abort); + blk_insert_bs(data.blk, data.bs, &error_abort); + + data.backing =3D bdrv_new_open_driver(&bdrv_test, "backing", 0, &error= _abort); + bdrv_set_backing_hd(data.bs, data.backing, &error_abort); + + if (in_coroutine) { + call_in_coroutine(cb, &data); + } else { + cb(&data); + } + + bdrv_unref(data.backing); + bdrv_unref(data.bs); + blk_unref(data.blk); +} + +static void test_drv_cb(enum drain_type drain_type, bool in_coroutine) +{ + test_common_cb(drain_type, in_coroutine, test_drv_cb_common); } =20 static void test_drv_cb_drain_all(void) { - test_drv_cb_common(BDRV_DRAIN_ALL, true); + test_drv_cb(BDRV_DRAIN_ALL, false); } =20 static void test_drv_cb_drain(void) { - test_drv_cb_common(BDRV_DRAIN, false); + test_drv_cb(BDRV_DRAIN, false); } =20 static void test_drv_cb_drain_subtree(void) { - test_drv_cb_common(BDRV_SUBTREE_DRAIN, true); + test_drv_cb(BDRV_SUBTREE_DRAIN, false); } =20 static void test_drv_cb_co_drain_all(void) { - call_in_coroutine(test_drv_cb_drain_all); + test_drv_cb(BDRV_DRAIN_ALL, true); } =20 static void test_drv_cb_co_drain(void) { - call_in_coroutine(test_drv_cb_drain); + test_drv_cb(BDRV_DRAIN, true); } =20 static void test_drv_cb_co_drain_subtree(void) { - call_in_coroutine(test_drv_cb_drain_subtree); + test_drv_cb(BDRV_SUBTREE_DRAIN, true); } =20 -static void test_quiesce_common(enum drain_type drain_type, bool recursive) +static void test_quiesce_common(void *arg) { - BlockBackend *blk; - BlockDriverState *bs, *backing; - - blk =3D blk_new(qemu_get_aio_context(), BLK_PERM_ALL, BLK_PERM_ALL); - bs =3D bdrv_new_open_driver(&bdrv_test, "test-node", BDRV_O_RDWR, - &error_abort); - blk_insert_bs(blk, bs, &error_abort); - - backing =3D bdrv_new_open_driver(&bdrv_test, "backing", 0, &error_abor= t); - bdrv_set_backing_hd(bs, backing, &error_abort); + TestDriverCBData *data =3D arg; + BlockDriverState *bs =3D data->bs; + BlockDriverState *backing =3D data->backing; + enum drain_type drain_type =3D data->drain_type; + bool recursive =3D data->recursive; =20 g_assert_cmpint(bs->quiesce_counter, =3D=3D, 0); g_assert_cmpint(backing->quiesce_counter, =3D=3D, 0); @@ -306,40 +333,41 @@ static void test_quiesce_common(enum drain_type drain= _type, bool recursive) =20 g_assert_cmpint(bs->quiesce_counter, =3D=3D, 0); g_assert_cmpint(backing->quiesce_counter, =3D=3D, 0); +} =20 - bdrv_unref(backing); - bdrv_unref(bs); - blk_unref(blk); +static void test_quiesce(enum drain_type drain_type, bool in_coroutine) +{ + test_common_cb(drain_type, in_coroutine, test_quiesce_common); } =20 static void test_quiesce_drain_all(void) { - test_quiesce_common(BDRV_DRAIN_ALL, true); + test_quiesce(BDRV_DRAIN_ALL, false); } =20 static void test_quiesce_drain(void) { - test_quiesce_common(BDRV_DRAIN, false); + test_quiesce(BDRV_DRAIN, false); } =20 static void test_quiesce_drain_subtree(void) { - test_quiesce_common(BDRV_SUBTREE_DRAIN, true); + test_quiesce(BDRV_SUBTREE_DRAIN, false); } =20 static void test_quiesce_co_drain_all(void) { - call_in_coroutine(test_quiesce_drain_all); + test_quiesce(BDRV_DRAIN_ALL, true); } =20 static void test_quiesce_co_drain(void) { - call_in_coroutine(test_quiesce_drain); + test_quiesce(BDRV_DRAIN, true); } =20 static void test_quiesce_co_drain_subtree(void) { - call_in_coroutine(test_quiesce_drain_subtree); + test_quiesce(BDRV_SUBTREE_DRAIN, true); } =20 static void test_nested(void) --=20 2.31.1