From patchwork Fri Nov 23 16:55:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Sementsov-Ogievskiy X-Patchwork-Id: 10696193 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 203AE13BF for ; Fri, 23 Nov 2018 16:57:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 101992BECE for ; Fri, 23 Nov 2018 16:57:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 044152BED2; Fri, 23 Nov 2018 16:57:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id ACA962BECE for ; Fri, 23 Nov 2018 16:56:59 +0000 (UTC) Received: from localhost ([::1]:53445 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gQElG-0002Js-OS for patchwork-qemu-devel@patchwork.kernel.org; Fri, 23 Nov 2018 11:56:58 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34828) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gQEjj-00083J-KZ for qemu-devel@nongnu.org; Fri, 23 Nov 2018 11:55:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gQEje-0002Bs-GL for qemu-devel@nongnu.org; Fri, 23 Nov 2018 11:55:23 -0500 Received: from relay.sw.ru ([185.231.240.75]:34482) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gQEje-00027x-42; Fri, 23 Nov 2018 11:55:18 -0500 Received: from [10.28.8.145] (helo=kvm.sw.ru) by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1gQEjZ-0003sc-4W; Fri, 23 Nov 2018 19:55:13 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-devel@nongnu.org, qemu-block@nongnu.org Date: Fri, 23 Nov 2018 19:55:03 +0300 Message-Id: <20181123165511.416480-4-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20181123165511.416480-1-vsementsov@virtuozzo.com> References: <20181123165511.416480-1-vsementsov@virtuozzo.com> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 185.231.240.75 Subject: [Qemu-devel] [PATCH 03/11] qcow2-threads: use thread_pool_submit_co 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, vsementsov@virtuozzo.com, berto@igalia.com, mreitz@redhat.com, den@openvz.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Use thread_pool_submit_co, instead of reinventing it here. Note, that thread_pool_submit_aio() never returns an error, so checking it was an extra thing. Signed-off-by: Vladimir Sementsov-Ogievskiy --- block/qcow2-threads.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) diff --git a/block/qcow2-threads.c b/block/qcow2-threads.c index b75fad6e07..8c10191f2f 100644 --- a/block/qcow2-threads.c +++ b/block/qcow2-threads.c @@ -140,17 +140,11 @@ static int qcow2_compress_pool_func(void *opaque) return 0; } -static void qcow2_compress_complete(void *opaque, int ret) -{ - qemu_coroutine_enter(opaque); -} - static ssize_t coroutine_fn qcow2_co_do_compress(BlockDriverState *bs, void *dest, size_t dest_size, const void *src, size_t src_size, Qcow2CompressFunc func) { BDRVQcow2State *s = bs->opaque; - BlockAIOCB *acb; ThreadPool *pool = aio_get_thread_pool(bdrv_get_aio_context(bs)); Qcow2CompressData arg = { .dest = dest, @@ -165,16 +159,9 @@ qcow2_co_do_compress(BlockDriverState *bs, void *dest, size_t dest_size, } s->nb_compress_threads++; - acb = thread_pool_submit_aio(pool, qcow2_compress_pool_func, &arg, - qcow2_compress_complete, - qemu_coroutine_self()); - - if (!acb) { - s->nb_compress_threads--; - return -EINVAL; - } - qemu_coroutine_yield(); + thread_pool_submit_co(pool, qcow2_compress_pool_func, &arg); s->nb_compress_threads--; + qemu_co_queue_next(&s->compress_wait_queue); return arg.ret;