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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 B07A8C432C3 for ; Fri, 15 Nov 2019 14:26:44 +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 895D82073A for ; Fri, 15 Nov 2019 14:26:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 895D82073A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39890 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iVcYd-0000Dc-6p for qemu-devel@archiver.kernel.org; Fri, 15 Nov 2019 09:26:43 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:59007) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iVcNK-0004dL-RA for qemu-devel@nongnu.org; Fri, 15 Nov 2019 09:15:03 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iVcNJ-0001xb-Jy for qemu-devel@nongnu.org; Fri, 15 Nov 2019 09:15:02 -0500 Received: from relay.sw.ru ([185.231.240.75]:47422) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iVcNG-0001ro-Iz; Fri, 15 Nov 2019 09:14:58 -0500 Received: from vovaso.qa.sw.ru ([10.94.3.0] helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92.3) (envelope-from ) id 1iVcN4-0006WW-Sp; Fri, 15 Nov 2019 17:14:46 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Subject: [RFC 09/24] block/block-copy: alloc task on each iteration Date: Fri, 15 Nov 2019 17:14:29 +0300 Message-Id: <20191115141444.24155-10-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191115141444.24155-1-vsementsov@virtuozzo.com> References: <20191115141444.24155-1-vsementsov@virtuozzo.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 185.231.240.75 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: kwolf@redhat.com, vsementsov@virtuozzo.com, ehabkost@redhat.com, wencongyang2@huawei.com, xiechanglong.d@gmail.com, armbru@redhat.com, qemu-devel@nongnu.org, jsnow@redhat.com, crosa@redhat.com, den@openvz.org, mreitz@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We are going to use aio-task-pool API, so tasks will be handled in parallel. We need therefore separate allocated task on each iteration. Introduce this logic now. Signed-off-by: Vladimir Sementsov-Ogievskiy --- block/block-copy.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/block/block-copy.c b/block/block-copy.c index b00cbfc841..956b4b55e7 100644 --- a/block/block-copy.c +++ b/block/block-copy.c @@ -111,9 +111,11 @@ static bool coroutine_fn block_copy_wait_one(BlockCopyState *s, int64_t start, } /* Called only on full-dirty region */ -static void block_copy_task_begin(BlockCopyState *s, BlockCopyTask *task, - int64_t offset, int64_t bytes) +static BlockCopyTask *block_copy_task_create(BlockCopyState *s, + int64_t offset, int64_t bytes) { + BlockCopyTask *task = g_new(BlockCopyTask, 1); + assert(!block_copy_find_task(s, offset, bytes)); bdrv_reset_dirty_bitmap(s->copy_bitmap, offset, bytes); @@ -122,6 +124,8 @@ static void block_copy_task_begin(BlockCopyState *s, BlockCopyTask *task, task->bytes = bytes; qemu_co_queue_init(&task->wait_queue); QLIST_INSERT_HEAD(&s->tasks, task, list); + + return task; } static void coroutine_fn block_copy_task_shrink(BlockCopyState *s, @@ -454,7 +458,7 @@ static int coroutine_fn block_copy_dirty_clusters(BlockCopyState *s, assert(QEMU_IS_ALIGNED(bytes, s->cluster_size)); while (bytes) { - BlockCopyTask task; + g_autofree BlockCopyTask *task = NULL; int64_t next_zero, cur_bytes, status_bytes; if (!bdrv_dirty_bitmap_get(s->copy_bitmap, offset)) { @@ -475,12 +479,12 @@ static int coroutine_fn block_copy_dirty_clusters(BlockCopyState *s, assert(next_zero < offset + cur_bytes); /* no need to do MIN() */ cur_bytes = next_zero - offset; } - block_copy_task_begin(s, &task, offset, cur_bytes); + task = block_copy_task_create(s, offset, cur_bytes); ret = block_copy_block_status(s, offset, cur_bytes, &status_bytes); - block_copy_task_shrink(s, &task, status_bytes); + block_copy_task_shrink(s, task, status_bytes); if (s->skip_unallocated && !(ret & BDRV_BLOCK_ALLOCATED)) { - block_copy_task_end(s, &task, 0); + block_copy_task_end(s, task, 0); s->progress_reset_callback(s->progress_opaque); trace_block_copy_skip_range(s, offset, status_bytes); offset += status_bytes; @@ -496,7 +500,7 @@ static int coroutine_fn block_copy_dirty_clusters(BlockCopyState *s, ret = block_copy_do_copy(s, offset, cur_bytes, ret & BDRV_BLOCK_ZERO, error_is_read); co_put_to_shres(s->mem, cur_bytes); - block_copy_task_end(s, &task, ret); + block_copy_task_end(s, task, ret); if (ret < 0) { return ret; } -- 2.21.0