From patchwork Mon Jun 5 15:45:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 13267717 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 7FAD1C7EE24 for ; Mon, 5 Jun 2023 15:48:54 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q6CPs-00088a-Hi; Mon, 05 Jun 2023 11:46:44 -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 1q6CPT-0007tJ-TI for qemu-devel@nongnu.org; Mon, 05 Jun 2023 11:46:23 -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 1q6CPQ-0001P2-AQ for qemu-devel@nongnu.org; Mon, 05 Jun 2023 11:46:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1685979975; 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=XyEA4iClLdS3Fl+6nsOtSoLAGTr2JLz4Ogv1Kf/SCuE=; b=VGD6bwiX18eTOoRrvTZqTofkmQFzvAEBmDBBKSzwr6cfM5bespAMrmrKxLpXrtPuPLtf4Y UW+qdkqBggDP7LhkHoV7ILaqYoGfZWlJ/h1xGkRVb96dn0SUjg8lVP7288jg/z+tnOnMrk MKEx2q8ZR7M7IarPvFhb8JPbBXCBVw4= 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-148-jBjhxTMnO8CrpZwCacjJLQ-1; Mon, 05 Jun 2023 11:46:05 -0400 X-MC-Unique: jBjhxTMnO8CrpZwCacjJLQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id C22E885A5BD; Mon, 5 Jun 2023 15:46:04 +0000 (UTC) Received: from localhost (unknown [10.39.194.13]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 842F440CFD47; Mon, 5 Jun 2023 15:46:04 +0000 (UTC) From: Hanna Czenczek To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, Hanna Czenczek , Kevin Wolf , Richard Henderson Subject: [PULL 13/17] parallels: Move check of leaks to a separate function Date: Mon, 5 Jun 2023 17:45:37 +0200 Message-Id: <20230605154541.1043261-14-hreitz@redhat.com> In-Reply-To: <20230605154541.1043261-1-hreitz@redhat.com> References: <20230605154541.1043261-1-hreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Received-SPF: pass client-ip=170.10.133.124; envelope-from=hreitz@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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Alexander Ivanov We will add more and more checks so we need a better code structure in parallels_co_check. Let each check performs in a separate loop in a separate helper. Signed-off-by: Alexander Ivanov Message-Id: <20230424093147.197643-10-alexander.ivanov@virtuozzo.com> Reviewed-by: Hanna Czenczek Signed-off-by: Hanna Czenczek --- block/parallels.c | 74 ++++++++++++++++++++++++++++------------------- 1 file changed, 45 insertions(+), 29 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index fd1e2860d0..ba766e5e86 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -483,13 +483,12 @@ parallels_check_outside_image(BlockDriverState *bs, BdrvCheckResult *res, } static int coroutine_fn GRAPH_RDLOCK -parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, - BdrvCheckMode fix) +parallels_check_leak(BlockDriverState *bs, BdrvCheckResult *res, + BdrvCheckMode fix) { BDRVParallelsState *s = bs->opaque; - int64_t size, prev_off; + int64_t size; int ret; - uint32_t i; size = bdrv_getlength(bs->file->bs); if (size < 0) { @@ -497,6 +496,43 @@ parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, return size; } + if (size > res->image_end_offset) { + int64_t count; + count = DIV_ROUND_UP(size - res->image_end_offset, s->cluster_size); + fprintf(stderr, "%s space leaked at the end of the image %" PRId64 "\n", + fix & BDRV_FIX_LEAKS ? "Repairing" : "ERROR", + size - res->image_end_offset); + res->leaks += count; + if (fix & BDRV_FIX_LEAKS) { + Error *local_err = NULL; + + /* + * In order to really repair the image, we must shrink it. + * That means we have to pass exact=true. + */ + ret = bdrv_co_truncate(bs->file, res->image_end_offset, true, + PREALLOC_MODE_OFF, 0, &local_err); + if (ret < 0) { + error_report_err(local_err); + res->check_errors++; + return ret; + } + res->leaks_fixed += count; + } + } + + return 0; +} + +static int coroutine_fn GRAPH_RDLOCK +parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, + BdrvCheckMode fix) +{ + BDRVParallelsState *s = bs->opaque; + int64_t prev_off; + int ret; + uint32_t i; + qemu_co_mutex_lock(&s->lock); parallels_check_unclean(bs, res, fix); @@ -506,6 +542,11 @@ parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, goto out; } + ret = parallels_check_leak(bs, res, fix); + if (ret < 0) { + goto out; + } + res->bfi.total_clusters = s->bat_size; res->bfi.compressed_clusters = 0; /* compression is not supported */ @@ -529,31 +570,6 @@ parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, prev_off = off; } - if (size > res->image_end_offset) { - int64_t count; - count = DIV_ROUND_UP(size - res->image_end_offset, s->cluster_size); - fprintf(stderr, "%s space leaked at the end of the image %" PRId64 "\n", - fix & BDRV_FIX_LEAKS ? "Repairing" : "ERROR", - size - res->image_end_offset); - res->leaks += count; - if (fix & BDRV_FIX_LEAKS) { - Error *local_err = NULL; - - /* - * In order to really repair the image, we must shrink it. - * That means we have to pass exact=true. - */ - ret = bdrv_co_truncate(bs->file, res->image_end_offset, true, - PREALLOC_MODE_OFF, 0, &local_err); - if (ret < 0) { - error_report_err(local_err); - res->check_errors++; - goto out; - } - res->leaks_fixed += count; - } - } - out: qemu_co_mutex_unlock(&s->lock);