From patchwork Wed Jan 20 06:11:40 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fam Zheng X-Patchwork-Id: 8068701 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 7B191BEEE5 for ; Wed, 20 Jan 2016 06:15:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BC21220373 for ; Wed, 20 Jan 2016 06:15:29 +0000 (UTC) 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.kernel.org (Postfix) with ESMTPS id D39B520351 for ; Wed, 20 Jan 2016 06:15:28 +0000 (UTC) Received: from localhost ([::1]:40303 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aLm3E-0002Qn-4V for patchwork-qemu-devel@patchwork.kernel.org; Wed, 20 Jan 2016 01:15:28 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34871) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aLm0V-0005wk-V4 for qemu-devel@nongnu.org; Wed, 20 Jan 2016 01:12:46 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aLm0U-0004Py-MP for qemu-devel@nongnu.org; Wed, 20 Jan 2016 01:12:39 -0500 Received: from mx1.redhat.com ([209.132.183.28]:54193) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aLm0S-0004PP-0a; Wed, 20 Jan 2016 01:12:36 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (Postfix) with ESMTPS id A6BA38E019; Wed, 20 Jan 2016 06:12:35 +0000 (UTC) Received: from fam-t430.nay.redhat.com. (dhcp-15-42.nay.redhat.com [10.66.15.42]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u0K6BlW5014641; Wed, 20 Jan 2016 01:12:30 -0500 From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 20 Jan 2016 14:11:40 +0800 Message-Id: <1453270306-16608-8-git-send-email-famz@redhat.com> In-Reply-To: <1453270306-16608-1-git-send-email-famz@redhat.com> References: <1453270306-16608-1-git-send-email-famz@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: Kevin Wolf , Jeff Cody , Vladimir Sementsov-Ogievskiy , jsnow@redhat.com, qemu-block@nongnu.org Subject: [Qemu-devel] [PATCH v2 07/13] tests: Add test code for meta bitmap X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Fam Zheng Reviewed-by: John Snow --- tests/test-hbitmap.c | 116 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 116 insertions(+) diff --git a/tests/test-hbitmap.c b/tests/test-hbitmap.c index abcea0c..a341803 100644 --- a/tests/test-hbitmap.c +++ b/tests/test-hbitmap.c @@ -14,6 +14,7 @@ #include #include #include "qemu/hbitmap.h" +#include "block/block.h" #define LOG_BITS_PER_LONG (BITS_PER_LONG == 32 ? 5 : 6) @@ -23,6 +24,7 @@ typedef struct TestHBitmapData { HBitmap *hb; + HBitmap *meta; unsigned long *bits; size_t size; size_t old_size; @@ -94,6 +96,14 @@ static void hbitmap_test_init(TestHBitmapData *data, } } +static void hbitmap_test_init_meta(TestHBitmapData *data, + uint64_t size, int granularity, + int meta_chunk) +{ + hbitmap_test_init(data, size, granularity); + data->meta = hbitmap_create_meta(data->hb, meta_chunk); +} + static inline size_t hbitmap_test_array_size(size_t bits) { size_t n = (bits + BITS_PER_LONG - 1) / BITS_PER_LONG; @@ -136,6 +146,9 @@ static void hbitmap_test_teardown(TestHBitmapData *data, const void *unused) { if (data->hb) { + if (data->meta) { + hbitmap_free_meta(data->hb); + } hbitmap_free(data->hb); data->hb = NULL; } @@ -637,6 +650,103 @@ static void test_hbitmap_truncate_shrink_large(TestHBitmapData *data, hbitmap_test_truncate(data, size, -diff, 0); } +static void hbitmap_check_meta(TestHBitmapData *data, + int64_t start, int count) +{ + int64_t i; + + for (i = 0; i < data->size; i++) { + if (i >= start && i < start + count) { + g_assert(hbitmap_get(data->meta, i)); + } else { + g_assert(!hbitmap_get(data->meta, i)); + } + } +} + +static void hbitmap_test_meta(TestHBitmapData *data, + int64_t start, int count, + int64_t check_start, int check_count) +{ + hbitmap_reset_all(data->hb); + hbitmap_reset_all(data->meta); + + /* Test "unset" -> "unset" will not update meta. */ + hbitmap_reset(data->hb, start, count); + hbitmap_check_meta(data, 0, 0); + + /* Test "unset" -> "set" will update meta */ + hbitmap_set(data->hb, start, count); + hbitmap_check_meta(data, check_start, check_count); + + /* Test "set" -> "set" will not update meta */ + hbitmap_reset_all(data->meta); + hbitmap_set(data->hb, start, count); + hbitmap_check_meta(data, 0, 0); + + /* Test "set" -> "unset" will update meta */ + hbitmap_reset_all(data->meta); + hbitmap_reset(data->hb, start, count); + hbitmap_check_meta(data, check_start, check_count); +} + +static void hbitmap_test_meta_do(TestHBitmapData *data, int chunk_size) +{ + uint64_t size = chunk_size * 100; + hbitmap_test_init_meta(data, size, 0, chunk_size); + + hbitmap_test_meta(data, 0, 1, 0, chunk_size); + hbitmap_test_meta(data, 0, chunk_size, 0, chunk_size); + hbitmap_test_meta(data, chunk_size - 1, 1, 0, chunk_size); + hbitmap_test_meta(data, chunk_size - 1, 2, 0, chunk_size * 2); + hbitmap_test_meta(data, chunk_size - 1, chunk_size + 1, 0, chunk_size * 2); + hbitmap_test_meta(data, chunk_size - 1, chunk_size + 2, 0, chunk_size * 3); + hbitmap_test_meta(data, 7 * chunk_size - 1, chunk_size + 2, + 6 * chunk_size, chunk_size * 3); + hbitmap_test_meta(data, size - 1, 1, size - chunk_size, chunk_size); + hbitmap_test_meta(data, 0, size, 0, size); +} + +static void test_hbitmap_meta_byte(TestHBitmapData *data, const void *unused) +{ + hbitmap_test_meta_do(data, BITS_PER_BYTE); +} + +static void test_hbitmap_meta_word(TestHBitmapData *data, const void *unused) +{ + hbitmap_test_meta_do(data, BITS_PER_LONG); +} + +static void test_hbitmap_meta_sector(TestHBitmapData *data, const void *unused) +{ + hbitmap_test_meta_do(data, BDRV_SECTOR_SIZE * BITS_PER_BYTE); +} + +/** + * Create an HBitmap and test set/unset. + */ +static void test_hbitmap_meta_one(TestHBitmapData *data, const void *unused) +{ + int i; + int64_t offsets[] = { + 0, 1, L1 - 1, L1, L1 + 1, L2 - 1, L2, L2 + 1, L3 - 1, L3, L3 + 1 + }; + + hbitmap_test_init_meta(data, L3 * 2, 0, 1); + for (i = 0; i < ARRAY_SIZE(offsets); i++) { + hbitmap_test_meta(data, offsets[i], 1, offsets[i], 1); + hbitmap_test_meta(data, offsets[i], L1, offsets[i], L1); + hbitmap_test_meta(data, offsets[i], L2, offsets[i], L2); + } +} + +static void test_hbitmap_meta_zero(TestHBitmapData *data, const void *unused) +{ + hbitmap_test_init_meta(data, 0, 0, 1); + + hbitmap_check_meta(data, 0, 0); +} + static void hbitmap_test_add(const char *testpath, void (*test_func)(TestHBitmapData *data, const void *user_data)) { @@ -686,6 +796,12 @@ int main(int argc, char **argv) test_hbitmap_truncate_grow_large); hbitmap_test_add("/hbitmap/truncate/shrink/large", test_hbitmap_truncate_shrink_large); + + hbitmap_test_add("/hbitmap/meta/zero", test_hbitmap_meta_zero); + hbitmap_test_add("/hbitmap/meta/one", test_hbitmap_meta_one); + hbitmap_test_add("/hbitmap/meta/byte", test_hbitmap_meta_byte); + hbitmap_test_add("/hbitmap/meta/word", test_hbitmap_meta_word); + hbitmap_test_add("/hbitmap/meta/sector", test_hbitmap_meta_sector); g_test_run(); return 0;