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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Alexander Ivanov --- block/parallels.c | 29 +++++++++++++++++++---------- 1 file changed, 19 insertions(+), 10 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index a229c06f25..108aa907b8 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -413,6 +413,23 @@ static coroutine_fn int parallels_co_readv(BlockDriverState *bs, return ret; } +static void parallels_check_unclean(BlockDriverState *bs, + BdrvCheckResult *res, + BdrvCheckMode fix) +{ + BDRVParallelsState *s = bs->opaque; + + if (s->header_unclean) { + fprintf(stderr, "%s image was not closed correctly\n", + fix & BDRV_FIX_ERRORS ? "Repairing" : "ERROR"); + res->corruptions++; + if (fix & BDRV_FIX_ERRORS) { + /* parallels_close will do the job right */ + res->corruptions_fixed++; + s->header_unclean = false; + } + } +} static int coroutine_fn parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, @@ -431,16 +448,8 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, } qemu_co_mutex_lock(&s->lock); - if (s->header_unclean) { - fprintf(stderr, "%s image was not closed correctly\n", - fix & BDRV_FIX_ERRORS ? "Repairing" : "ERROR"); - res->corruptions++; - if (fix & BDRV_FIX_ERRORS) { - /* parallels_close will do the job right */ - res->corruptions_fixed++; - s->header_unclean = false; - } - } + + parallels_check_unclean(bs, res, fix); res->bfi.total_clusters = s->bat_size; res->bfi.compressed_clusters = 0; /* compression is not supported */ From patchwork Mon Aug 8 12:07:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Ivanov X-Patchwork-Id: 1664573 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=selector2 header.b=zAWWzU9o; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; 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Mon, 8 Aug 2022 12:07:44 +0000 Received: from AS8PR08MB7095.eurprd08.prod.outlook.com ([fe80::7da2:4a5a:2854:26f2]) by AS8PR08MB7095.eurprd08.prod.outlook.com ([fe80::7da2:4a5a:2854:26f2%6]) with mapi id 15.20.5504.020; Mon, 8 Aug 2022 12:07:44 +0000 From: Alexander Ivanov To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, den@virtuozzo.com, stefanha@redhat.com, vsementsov@yandex-team.ru, kwolf@redhat.com, hreitz@redhat.com Subject: [PATCH 2/9] parallels: Move check of cluster outside image to a separate function Date: Mon, 8 Aug 2022 14:07:27 +0200 Message-Id: <20220808120734.1168314-3-alexander.ivanov@virtuozzo.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220808120734.1168314-1-alexander.ivanov@virtuozzo.com> References: <20220808120734.1168314-1-alexander.ivanov@virtuozzo.com> X-ClientProxiedBy: FR3P281CA0042.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:4a::13) To AS8PR08MB7095.eurprd08.prod.outlook.com (2603:10a6:20b:402::11) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 8871d6fe-8432-45e9-6332-08da79369a02 X-MS-TrafficTypeDiagnostic: VI1PR08MB5360:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Alexander Ivanov --- block/parallels.c | 76 +++++++++++++++++++++++++++++++++-------------- 1 file changed, 53 insertions(+), 23 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index 108aa907b8..7b400ecdcc 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -413,6 +413,13 @@ static coroutine_fn int parallels_co_readv(BlockDriverState *bs, return ret; } +static void parallels_set_bat_entry(BDRVParallelsState *s, + uint32_t index, uint32_t offset) +{ + s->bat_bitmap[index] = offset; + bitmap_set(s->bat_dirty_bmap, bat_entry_off(index) / s->bat_dirty_block, 1); +} + static void parallels_check_unclean(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix) @@ -431,6 +438,47 @@ static void parallels_check_unclean(BlockDriverState *bs, } } +static int parallels_check_outside_image(BlockDriverState *bs, + BdrvCheckResult *res, + BdrvCheckMode fix) +{ + BDRVParallelsState *s = bs->opaque; + uint32_t i; + int64_t off, size; + int ret; + bool flush_bat = false; + + size = bdrv_getlength(bs->file->bs); + if (size < 0) { + res->check_errors++; + return size; + } + + for (i = 0; i < s->bat_size; i++) { + off = bat2sect(s, i) << BDRV_SECTOR_BITS; + if (off > size) { + fprintf(stderr, "%s cluster %u is outside image\n", + fix & BDRV_FIX_ERRORS ? "Repairing" : "ERROR", i); + res->corruptions++; + if (fix & BDRV_FIX_ERRORS) { + parallels_set_bat_entry(s, i, 0); + res->corruptions_fixed++; + flush_bat = true; + } + } + } + + if (flush_bat) { + ret = bdrv_co_pwrite_sync(bs->file, 0, s->header_size, s->header, 0); + if (ret < 0) { + res->check_errors++; + return ret; + } + } + + return 0; +} + static int coroutine_fn parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix) @@ -439,7 +487,6 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, int64_t size, prev_off, high_off; int ret; uint32_t i; - bool flush_bat = false; size = bdrv_getlength(bs->file->bs); if (size < 0) { @@ -451,6 +498,11 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, parallels_check_unclean(bs, res, fix); + ret = parallels_check_outside_image(bs, res, fix); + if (ret < 0) { + goto out; + } + res->bfi.total_clusters = s->bat_size; res->bfi.compressed_clusters = 0; /* compression is not supported */ @@ -463,20 +515,6 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, continue; } - /* cluster outside the image */ - if (off > size) { - fprintf(stderr, "%s cluster %u is outside image\n", - fix & BDRV_FIX_ERRORS ? "Repairing" : "ERROR", i); - res->corruptions++; - if (fix & BDRV_FIX_ERRORS) { - prev_off = 0; - s->bat_bitmap[i] = 0; - res->corruptions_fixed++; - flush_bat = true; - continue; - } - } - res->bfi.allocated_clusters++; if (off > high_off) { high_off = off; @@ -489,14 +527,6 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, } ret = 0; - if (flush_bat) { - ret = bdrv_co_pwrite_sync(bs->file, 0, s->header_size, s->header, 0); - if (ret < 0) { - res->check_errors++; - goto out; - } - } - res->image_end_offset = high_off + s->cluster_size; if (size > res->image_end_offset) { int64_t count; From patchwork Mon Aug 8 12:07:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Ivanov X-Patchwork-Id: 1664575 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=selector2 header.b=CuujgKh/; 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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Alexander Ivanov --- block/parallels.c | 96 ++++++++++++++++++++++++++++------------------- 1 file changed, 58 insertions(+), 38 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index 7b400ecdcc..6d4cfb738b 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -479,57 +479,31 @@ static int parallels_check_outside_image(BlockDriverState *bs, return 0; } -static int coroutine_fn parallels_co_check(BlockDriverState *bs, - BdrvCheckResult *res, - BdrvCheckMode fix) +static int parallels_check_leak(BlockDriverState *bs, + BdrvCheckResult *res, + BdrvCheckMode fix) { BDRVParallelsState *s = bs->opaque; - int64_t size, prev_off, high_off; - int ret; uint32_t i; - - size = bdrv_getlength(bs->file->bs); - if (size < 0) { - res->check_errors++; - return size; - } - - qemu_co_mutex_lock(&s->lock); - - parallels_check_unclean(bs, res, fix); - - ret = parallels_check_outside_image(bs, res, fix); - if (ret < 0) { - goto out; - } - - res->bfi.total_clusters = s->bat_size; - res->bfi.compressed_clusters = 0; /* compression is not supported */ + int64_t off, high_off, size, count; + int ret; high_off = 0; - prev_off = 0; for (i = 0; i < s->bat_size; i++) { - int64_t off = bat2sect(s, i) << BDRV_SECTOR_BITS; - if (off == 0) { - prev_off = 0; - continue; - } - - res->bfi.allocated_clusters++; + off = bat2sect(s, i) << BDRV_SECTOR_BITS; if (off > high_off) { high_off = off; } + } - if (prev_off != 0 && (prev_off + s->cluster_size) != off) { - res->bfi.fragmented_clusters++; - } - prev_off = off; + size = bdrv_getlength(bs->file->bs); + if (size < 0) { + res->check_errors++; + return size; } - ret = 0; res->image_end_offset = high_off + s->cluster_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", @@ -547,12 +521,58 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, if (ret < 0) { error_report_err(local_err); res->check_errors++; - goto out; + return ret; } res->leaks_fixed += count; } } + return 0; +} + +static int coroutine_fn 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); + + ret = parallels_check_outside_image(bs, res, fix); + if (ret < 0) { + 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 */ + + prev_off = 0; + for (i = 0; i < s->bat_size; i++) { + int64_t off = bat2sect(s, i) << BDRV_SECTOR_BITS; + if (off == 0) { + prev_off = 0; + continue; + } + + res->bfi.allocated_clusters++; + + if (prev_off != 0 && (prev_off + s->cluster_size) != off) { + res->bfi.fragmented_clusters++; + } + prev_off = off; + } + + ret = 0; out: qemu_co_mutex_unlock(&s->lock); return ret; From patchwork Mon Aug 8 12:07:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Ivanov X-Patchwork-Id: 1664582 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=selector2 header.b=cD5HS2S7; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4M1ZwF1N8cz9s07 for ; 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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Alexander Ivanov --- block/parallels.c | 38 +++++++++++++++++++++++++------------- 1 file changed, 25 insertions(+), 13 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index 6d4cfb738b..0edbb812dd 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -530,12 +530,34 @@ static int parallels_check_leak(BlockDriverState *bs, return 0; } +static void parallels_check_fragmentation(BlockDriverState *bs, + BdrvCheckResult *res, + BdrvCheckMode fix) +{ + BDRVParallelsState *s = bs->opaque; + uint32_t i; + int64_t off, prev_off; + + prev_off = 0; + for (i = 0; i < s->bat_size; i++) { + off = bat2sect(s, i) << BDRV_SECTOR_BITS; + if (off == 0) { + prev_off = 0; + continue; + } + if (prev_off != 0 && (prev_off + s->cluster_size) != off) { + res->bfi.fragmented_clusters++; + } + prev_off = off; + } + +} + static int coroutine_fn parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix) { BDRVParallelsState *s = bs->opaque; - int64_t prev_off; int ret; uint32_t i; @@ -553,23 +575,13 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, goto out; } + parallels_check_fragmentation(bs, res, fix); + res->bfi.total_clusters = s->bat_size; res->bfi.compressed_clusters = 0; /* compression is not supported */ - prev_off = 0; for (i = 0; i < s->bat_size; i++) { - int64_t off = bat2sect(s, i) << BDRV_SECTOR_BITS; 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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Alexander Ivanov --- block/parallels.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index 0edbb812dd..b0982d60d0 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -553,13 +553,29 @@ static void parallels_check_fragmentation(BlockDriverState *bs, } +static void parallels_collect_statistics(BlockDriverState *bs, + BdrvCheckResult *res, + BdrvCheckMode fix) +{ + BDRVParallelsState *s = bs->opaque; + uint32_t i; + + res->bfi.total_clusters = s->bat_size; + res->bfi.compressed_clusters = 0; /* compression is not supported */ + + for (i = 0; i < s->bat_size; i++) { + if (bat2sect(s, i) != 0) { + res->bfi.allocated_clusters++; + } + } +} + static int coroutine_fn parallels_co_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix) { BDRVParallelsState *s = bs->opaque; int ret; - uint32_t i; qemu_co_mutex_lock(&s->lock); @@ -577,12 +593,7 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, parallels_check_fragmentation(bs, res, fix); - res->bfi.total_clusters = s->bat_size; - res->bfi.compressed_clusters = 0; /* compression is not supported */ - - for (i = 0; i < s->bat_size; i++) { - res->bfi.allocated_clusters++; - } + parallels_collect_statistics(bs, res, fix); ret = 0; out: From patchwork Mon Aug 8 12:07:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Ivanov X-Patchwork-Id: 1664585 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; 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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Replace the way that we use mutex in parallels_co_check() for more clean code. Signed-off-by: Alexander Ivanov --- block/parallels.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index b0982d60d0..3cb5452613 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -577,28 +577,25 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, BDRVParallelsState *s = bs->opaque; int ret; - qemu_co_mutex_lock(&s->lock); + WITH_QEMU_LOCK_GUARD(&s->lock); parallels_check_unclean(bs, res, fix); ret = parallels_check_outside_image(bs, res, fix); if (ret < 0) { - goto out; + return ret; } ret = parallels_check_leak(bs, res, fix); if (ret < 0) { - goto out; + return ret; } parallels_check_fragmentation(bs, res, fix); parallels_collect_statistics(bs, res, fix); - ret = 0; -out: - qemu_co_mutex_unlock(&s->lock); - return ret; + return 0; } From patchwork Mon Aug 8 12:07:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Ivanov X-Patchwork-Id: 1664574 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; 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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" When an image is opened, data_end field in BDRVParallelsState is setted as the biggest offset in the BAT plus cluster size. If there is a corrupted offset pointing outside the image, the image size increase accordingly. It potentially leads to attempts to create a file size of petabytes. Set the data_end field with the original file size if the image was opened for checking and repairing purposes or raise an error. Signed-off-by: Alexander Ivanov --- block/parallels.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/block/parallels.c b/block/parallels.c index 3cb5452613..72cf7499c1 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -811,6 +811,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags, BDRVParallelsState *s = bs->opaque; ParallelsHeader ph; int ret, size, i; + int64_t file_size; QemuOpts *opts = NULL; Error *local_err = NULL; char *buf; @@ -890,6 +891,22 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags, } } + file_size = bdrv_getlength(bs->file->bs); + if (file_size < 0) { + goto fail; + } + + file_size >>= BDRV_SECTOR_BITS; + if (s->data_end > file_size) { + if (flags & BDRV_O_CHECK) { + s->data_end = file_size; + } else { + error_setg(errp, "parallels: Offset in BAT is out of image"); + ret = -EINVAL; + goto fail; + } + } + if (le32_to_cpu(ph.inuse) == HEADER_INUSE_MAGIC) { /* Image was not closed correctly. The check is mandatory */ s->header_unclean = true; From patchwork Mon Aug 8 12:07:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Ivanov X-Patchwork-Id: 1664576 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=selector2 header.b=Yt5DbF9b; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4M1Zql5p3Dz9s07 for ; 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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" It's too costly to write all the BAT to the disk. Let the flush function write only dirty blocks. Signed-off-by: Alexander Ivanov --- block/parallels.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/parallels.c b/block/parallels.c index 72cf7499c1..38b1482e81 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -469,7 +469,7 @@ static int parallels_check_outside_image(BlockDriverState *bs, } if (flush_bat) { - ret = bdrv_co_pwrite_sync(bs->file, 0, s->header_size, s->header, 0); + ret = bdrv_co_flush(bs); if (ret < 0) { res->check_errors++; return ret; From patchwork Mon Aug 8 12:07:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Ivanov X-Patchwork-Id: 1664583 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=selector2 header.b=HJHzq2WR; dkim-atps=neutral Authentication-Results: ozlabs.org; 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envelope-from=alexander.ivanov@virtuozzo.com; helo=EUR04-DB3-obe.outbound.protection.outlook.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Frgamentation is a part of statistics so it is better to count the statistics in one function. Signed-off-by: Alexander Ivanov --- block/parallels.c | 31 ++++++++----------------------- 1 file changed, 8 insertions(+), 23 deletions(-) diff --git a/block/parallels.c b/block/parallels.c index 38b1482e81..11597c5dc4 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -530,13 +530,16 @@ static int parallels_check_leak(BlockDriverState *bs, return 0; } -static void parallels_check_fragmentation(BlockDriverState *bs, - BdrvCheckResult *res, - BdrvCheckMode fix) +static void parallels_collect_statistics(BlockDriverState *bs, + BdrvCheckResult *res, + BdrvCheckMode fix) { BDRVParallelsState *s = bs->opaque; - uint32_t i; int64_t off, prev_off; + uint32_t i; + + res->bfi.total_clusters = s->bat_size; + res->bfi.compressed_clusters = 0; /* compression is not supported */ prev_off = 0; for (i = 0; i < s->bat_size; i++) { @@ -549,24 +552,8 @@ static void parallels_check_fragmentation(BlockDriverState *bs, res->bfi.fragmented_clusters++; } prev_off = off; - } -} - -static void parallels_collect_statistics(BlockDriverState *bs, - BdrvCheckResult *res, - BdrvCheckMode fix) -{ - BDRVParallelsState *s = bs->opaque; - uint32_t i; - - res->bfi.total_clusters = s->bat_size; - res->bfi.compressed_clusters = 0; /* compression is not supported */ - - for (i = 0; i < s->bat_size; i++) { - if (bat2sect(s, i) != 0) { - res->bfi.allocated_clusters++; - } + res->bfi.allocated_clusters++; } } @@ -591,8 +578,6 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, return ret; } - parallels_check_fragmentation(bs, res, fix); - parallels_collect_statistics(bs, res, fix); return 0;