From patchwork Mon Jul 3 15:10:38 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 9823575 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B259C60237 for ; Mon, 3 Jul 2017 15:12:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A419626E76 for ; Mon, 3 Jul 2017 15:12:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 96C48284FC; Mon, 3 Jul 2017 15:12:30 +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=-6.9 required=2.0 tests=BAYES_00,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 2CB4E26E76 for ; Mon, 3 Jul 2017 15:12:29 +0000 (UTC) Received: from localhost ([::1]:35749 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dS31Z-00074l-7P for patchwork-qemu-devel@patchwork.kernel.org; Mon, 03 Jul 2017 11:12:29 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55132) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dS30L-00070g-9q for qemu-devel@nongnu.org; Mon, 03 Jul 2017 11:11:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dS30K-000885-3G for qemu-devel@nongnu.org; Mon, 03 Jul 2017 11:11:13 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59914) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dS30F-000849-8t; Mon, 03 Jul 2017 11:11:07 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3DE713345BF; Mon, 3 Jul 2017 15:11:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 3DE713345BF Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=eblake@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 3DE713345BF Received: from red.redhat.com (ovpn-120-36.rdu2.redhat.com [10.10.120.36]) by smtp.corp.redhat.com (Postfix) with ESMTP id 097096E524; Mon, 3 Jul 2017 15:11:04 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Date: Mon, 3 Jul 2017 10:10:38 -0500 Message-Id: <20170703151051.31327-5-eblake@redhat.com> In-Reply-To: <20170703151051.31327-1-eblake@redhat.com> References: <20170703151051.31327-1-eblake@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Mon, 03 Jul 2017 15:11:06 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v4 04/17] dirty-bitmap: Drop unused functions 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, Fam Zheng , jsnow@redhat.com, qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP We had several functions that no one is currently using, and which use sector-based interfaces. I'm trying to convert towards byte-based interfaces, so it's easier to just drop the unused functions: bdrv_dirty_bitmap_get_meta bdrv_dirty_bitmap_get_meta_locked bdrv_dirty_bitmap_reset_meta bdrv_dirty_bitmap_meta_granularity Signed-off-by: Eric Blake Reviewed-by: John Snow --- v4: rebase to Vladimir's persistent bitmaps (bdrv_dirty_bitmap_size now in use), dropped R-b v3: rebase to upstream changes (bdrv_dirty_bitmap_get_meta_locked was added in b64bd51e with no clients), kept R-b v2: tweak commit message based on review, no code change --- include/block/dirty-bitmap.h | 10 ---------- block/dirty-bitmap.c | 44 -------------------------------------------- 2 files changed, 54 deletions(-) diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h index a79a58d..8fd842e 100644 --- a/include/block/dirty-bitmap.h +++ b/include/block/dirty-bitmap.h @@ -34,7 +34,6 @@ void bdrv_enable_dirty_bitmap(BdrvDirtyBitmap *bitmap); BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs); uint32_t bdrv_get_default_bitmap_granularity(BlockDriverState *bs); uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap); -uint32_t bdrv_dirty_bitmap_meta_granularity(BdrvDirtyBitmap *bitmap); bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap); bool bdrv_dirty_bitmap_frozen(BdrvDirtyBitmap *bitmap); const char *bdrv_dirty_bitmap_name(const BdrvDirtyBitmap *bitmap); @@ -44,15 +43,6 @@ void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap, int64_t cur_sector, int64_t nr_sectors); void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap, int64_t cur_sector, int64_t nr_sectors); -int bdrv_dirty_bitmap_get_meta(BlockDriverState *bs, - BdrvDirtyBitmap *bitmap, int64_t sector, - int nb_sectors); -int bdrv_dirty_bitmap_get_meta_locked(BlockDriverState *bs, - BdrvDirtyBitmap *bitmap, int64_t sector, - int nb_sectors); -void bdrv_dirty_bitmap_reset_meta(BlockDriverState *bs, - BdrvDirtyBitmap *bitmap, int64_t sector, - int nb_sectors); BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap); BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap, uint64_t first_sector); diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c index 0490ca3..42a55e4 100644 --- a/block/dirty-bitmap.c +++ b/block/dirty-bitmap.c @@ -173,45 +173,6 @@ void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap) qemu_mutex_unlock(bitmap->mutex); } -int bdrv_dirty_bitmap_get_meta_locked(BlockDriverState *bs, - BdrvDirtyBitmap *bitmap, int64_t sector, - int nb_sectors) -{ - uint64_t i; - int sectors_per_bit = 1 << hbitmap_granularity(bitmap->meta); - - /* To optimize: we can make hbitmap to internally check the range in a - * coarse level, or at least do it word by word. */ - for (i = sector; i < sector + nb_sectors; i += sectors_per_bit) { - if (hbitmap_get(bitmap->meta, i)) { - return true; - } - } - return false; -} - -int bdrv_dirty_bitmap_get_meta(BlockDriverState *bs, - BdrvDirtyBitmap *bitmap, int64_t sector, - int nb_sectors) -{ - bool dirty; - - qemu_mutex_lock(bitmap->mutex); - dirty = bdrv_dirty_bitmap_get_meta_locked(bs, bitmap, sector, nb_sectors); - qemu_mutex_unlock(bitmap->mutex); - - return dirty; -} - -void bdrv_dirty_bitmap_reset_meta(BlockDriverState *bs, - BdrvDirtyBitmap *bitmap, int64_t sector, - int nb_sectors) -{ - qemu_mutex_lock(bitmap->mutex); - hbitmap_reset(bitmap->meta, sector, nb_sectors); - qemu_mutex_unlock(bitmap->mutex); -} - int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap) { return bitmap->size; @@ -511,11 +472,6 @@ uint32_t bdrv_dirty_bitmap_granularity(const BdrvDirtyBitmap *bitmap) return BDRV_SECTOR_SIZE << hbitmap_granularity(bitmap->bitmap); } -uint32_t bdrv_dirty_bitmap_meta_granularity(BdrvDirtyBitmap *bitmap) -{ - return BDRV_SECTOR_SIZE << hbitmap_granularity(bitmap->meta); -} - BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap, uint64_t first_sector) {