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=-6.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 0671CC04A6B for ; Fri, 10 May 2019 16:19:21 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CFA4F2070D for ; Fri, 10 May 2019 16:19:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CFA4F2070D 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 ([127.0.0.1]:46148 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hP8Ey-0005wc-2N for qemu-devel@archiver.kernel.org; Fri, 10 May 2019 12:19:20 -0400 Received: from eggs.gnu.org ([209.51.188.92]:40083) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hP8CU-0004J4-25 for qemu-devel@nongnu.org; Fri, 10 May 2019 12:16:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hP8CT-0008RD-28 for qemu-devel@nongnu.org; Fri, 10 May 2019 12:16:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43964) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hP8CQ-0008Lz-G9; Fri, 10 May 2019 12:16:42 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id CC36E83F44; Fri, 10 May 2019 16:16:41 +0000 (UTC) Received: from linux.fritz.box.com (ovpn-116-183.ams2.redhat.com [10.36.116.183]) by smtp.corp.redhat.com (Postfix) with ESMTP id E7E6317791; Fri, 10 May 2019 16:16:38 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Fri, 10 May 2019 18:16:05 +0200 Message-Id: <20190510161614.23236-7-kwolf@redhat.com> In-Reply-To: <20190510161614.23236-1-kwolf@redhat.com> References: <20190510161614.23236-1-kwolf@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Fri, 10 May 2019 16:16:41 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 06/15] test-block-iothread: Job coroutine thread after AioContext switch X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This tests that a job coroutine always runs in the right iothread after the AioContext of its main node has changed. Signed-off-by: Kevin Wolf --- tests/test-block-iothread.c | 107 ++++++++++++++++++++++++++++++++++++ 1 file changed, 107 insertions(+) diff --git a/tests/test-block-iothread.c b/tests/test-block-iothread.c index 97ac0b159d..036ed9a3b3 100644 --- a/tests/test-block-iothread.c +++ b/tests/test-block-iothread.c @@ -354,6 +354,111 @@ static void test_sync_op(const void *opaque) blk_unref(blk); } =20 +typedef struct TestBlockJob { + BlockJob common; + bool should_complete; + int n; +} TestBlockJob; + +static int test_job_prepare(Job *job) +{ + g_assert(qemu_get_current_aio_context() =3D=3D qemu_get_aio_context(= )); + return 0; +} + +static int coroutine_fn test_job_run(Job *job, Error **errp) +{ + TestBlockJob *s =3D container_of(job, TestBlockJob, common.job); + + job_transition_to_ready(&s->common.job); + while (!s->should_complete) { + s->n++; + g_assert(qemu_get_current_aio_context() =3D=3D job->aio_context)= ; + + /* Avoid job_sleep_ns() because it marks the job as !busy. We wa= nt to + * emulate some actual activity (probably some I/O) here so that= the + * drain involved in AioContext switches has to wait for this ac= tivity + * to stop. */ + qemu_co_sleep_ns(QEMU_CLOCK_REALTIME, 1000000); + + job_pause_point(&s->common.job); + } + + g_assert(qemu_get_current_aio_context() =3D=3D job->aio_context); + return 0; +} + +static void test_job_complete(Job *job, Error **errp) +{ + TestBlockJob *s =3D container_of(job, TestBlockJob, common.job); + s->should_complete =3D true; +} + +BlockJobDriver test_job_driver =3D { + .job_driver =3D { + .instance_size =3D sizeof(TestBlockJob), + .free =3D block_job_free, + .user_resume =3D block_job_user_resume, + .drain =3D block_job_drain, + .run =3D test_job_run, + .complete =3D test_job_complete, + .prepare =3D test_job_prepare, + }, +}; + +static void test_attach_blockjob(void) +{ + IOThread *iothread =3D iothread_new(); + AioContext *ctx =3D iothread_get_aio_context(iothread); + BlockBackend *blk; + BlockDriverState *bs; + TestBlockJob *tjob; + + blk =3D blk_new(BLK_PERM_ALL, BLK_PERM_ALL); + bs =3D bdrv_new_open_driver(&bdrv_test, "base", BDRV_O_RDWR, &error_= abort); + blk_insert_bs(blk, bs, &error_abort); + + tjob =3D block_job_create("job0", &test_job_driver, NULL, bs, + 0, BLK_PERM_ALL, + 0, 0, NULL, NULL, &error_abort); + job_start(&tjob->common.job); + + while (tjob->n =3D=3D 0) { + aio_poll(qemu_get_aio_context(), false); + } + + blk_set_aio_context(blk, ctx); + + tjob->n =3D 0; + while (tjob->n =3D=3D 0) { + aio_poll(qemu_get_aio_context(), false); + } + + aio_context_acquire(ctx); + blk_set_aio_context(blk, qemu_get_aio_context()); + aio_context_release(ctx); + + tjob->n =3D 0; + while (tjob->n =3D=3D 0) { + aio_poll(qemu_get_aio_context(), false); + } + + blk_set_aio_context(blk, ctx); + + tjob->n =3D 0; + while (tjob->n =3D=3D 0) { + aio_poll(qemu_get_aio_context(), false); + } + + aio_context_acquire(ctx); + job_complete_sync(&tjob->common.job, &error_abort); + blk_set_aio_context(blk, qemu_get_aio_context()); + aio_context_release(ctx); + + bdrv_unref(bs); + blk_unref(blk); +} + int main(int argc, char **argv) { int i; @@ -368,5 +473,7 @@ int main(int argc, char **argv) g_test_add_data_func(t->name, t, test_sync_op); } =20 + g_test_add_func("/attach/blockjob", test_attach_blockjob); + return g_test_run(); } --=20 2.20.1