From nobody Wed Nov 12 07:06:20 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=virtuozzo.com ARC-Seal: i=1; a=rsa-sha256; t=1568644696; cv=none; d=zoho.com; s=zohoarc; b=FERDYxsWohmtZDifhLeN/Z+tleJfeg8O/3riWL7Z8qgGlgDVQmGw+9Fip+RsS4IbYmEN+T+7J1Qz2Ci6iDEVt2MXUorl4t/mwOhas3hyCUKcPORBqZiChSw4qtQJHeKTavfDfTH4/3t7qdpW8SUVYE95av2y/XAqy/d0CbHTWa0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1568644696; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=e7Hhk1NARiJ/oe9rfgAK2WMU6gFZHxKBNl7qn5TDc3Y=; b=EWeQSSWG+t+EC42tlR6aCw5ZsrAiQaH8DkT2LvYBx+g1Z1euMgpl5q+wr6Us2vm4q7Qduq9CLX/ci2KYp+Pou0nBzjbZ7i8eADT8MJL4oWFnjrTGH80BB3VNrkByE2M/ty9T4viKXfzcw1U03Bjm62d8y2xsiWHvnnPC89SQUI4= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 156864469659065.38908964497875; Mon, 16 Sep 2019 07:38:16 -0700 (PDT) Received: from localhost ([::1]:35240 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i9s8q-0000f7-Tu for importer@patchew.org; Mon, 16 Sep 2019 10:38:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50347) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i9rqa-0007Cd-LH for qemu-devel@nongnu.org; Mon, 16 Sep 2019 10:19:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i9rqY-0007uk-Tj for qemu-devel@nongnu.org; Mon, 16 Sep 2019 10:19:20 -0400 Received: from relay.sw.ru ([185.231.240.75]:58108) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1i9rqV-0007si-AH; Mon, 16 Sep 2019 10:19:15 -0400 Received: from [10.94.3.0] (helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92) (envelope-from ) id 1i9rqS-0003EA-BD; Mon, 16 Sep 2019 17:19:12 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Date: Mon, 16 Sep 2019 17:19:08 +0300 Message-Id: <20190916141911.5255-2-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190916141911.5255-1-vsementsov@virtuozzo.com> References: <20190916141911.5255-1-vsementsov@virtuozzo.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 185.231.240.75 Subject: [Qemu-devel] [PATCH 1/4] block/dirty-bitmap: drop meta 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: fam@euphon.net, kwolf@redhat.com, vsementsov@virtuozzo.com, quintela@redhat.com, armbru@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com, den@openvz.org, mreitz@redhat.com, jsnow@redhat.com, dgilbert@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Drop meta bitmaps, as they are unused. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: John Snow --- include/block/dirty-bitmap.h | 5 ---- block/dirty-bitmap.c | 46 ------------------------------------ 2 files changed, 51 deletions(-) diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h index 4b4b731b46..848dfc6590 100644 --- a/include/block/dirty-bitmap.h +++ b/include/block/dirty-bitmap.h @@ -18,9 +18,6 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverStat= e *bs, uint32_t granularity, const char *name, Error **errp); -void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap, - int chunk_size); -void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap); int bdrv_dirty_bitmap_create_successor(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, Error **errp); @@ -55,7 +52,6 @@ void bdrv_set_dirty_bitmap(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes); void bdrv_reset_dirty_bitmap(BdrvDirtyBitmap *bitmap, int64_t offset, int64_t bytes); -BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap); BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitmap *bitmap); void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter); =20 @@ -97,7 +93,6 @@ void bdrv_reset_dirty_bitmap_locked(BdrvDirtyBitmap *bitm= ap, int64_t bdrv_dirty_iter_next(BdrvDirtyBitmapIter *iter); void bdrv_set_dirty_iter(BdrvDirtyBitmapIter *hbi, int64_t offset); int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap); -int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_truncate(BlockDriverState *bs, int64_t bytes); bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap); bool bdrv_has_readonly_bitmaps(BlockDriverState *bs); diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c index 134e0c9a0c..acfc3077f1 100644 --- a/block/dirty-bitmap.c +++ b/block/dirty-bitmap.c @@ -30,7 +30,6 @@ struct BdrvDirtyBitmap { QemuMutex *mutex; HBitmap *bitmap; /* Dirty bitmap implementation */ - HBitmap *meta; /* Meta dirty bitmap */ bool busy; /* Bitmap is busy, it can't be used via QM= P */ BdrvDirtyBitmap *successor; /* Anonymous child, if any. */ char *name; /* Optional non-empty unique ID */ @@ -126,36 +125,6 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverS= tate *bs, return bitmap; } =20 -/* bdrv_create_meta_dirty_bitmap - * - * Create a meta dirty bitmap that tracks the changes of bits in @bitmap. = I.e. - * when a dirty status bit in @bitmap is changed (either from reset to set= or - * the other way around), its respective meta dirty bitmap bit will be mar= ked - * dirty as well. - * - * @bitmap: the block dirty bitmap for which to create a meta dirty bitmap. - * @chunk_size: how many bytes of bitmap data does each bit in the meta bi= tmap - * track. - */ -void bdrv_create_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap, - int chunk_size) -{ - assert(!bitmap->meta); - qemu_mutex_lock(bitmap->mutex); - bitmap->meta =3D hbitmap_create_meta(bitmap->bitmap, - chunk_size * BITS_PER_BYTE); - qemu_mutex_unlock(bitmap->mutex); -} - -void bdrv_release_meta_dirty_bitmap(BdrvDirtyBitmap *bitmap) -{ - assert(bitmap->meta); - qemu_mutex_lock(bitmap->mutex); - hbitmap_free_meta(bitmap->bitmap); - bitmap->meta =3D NULL; - qemu_mutex_unlock(bitmap->mutex); -} - int64_t bdrv_dirty_bitmap_size(const BdrvDirtyBitmap *bitmap) { return bitmap->size; @@ -319,7 +288,6 @@ static void bdrv_release_dirty_bitmap_locked(BdrvDirtyB= itmap *bitmap) assert(!bitmap->active_iterators); assert(!bdrv_dirty_bitmap_busy(bitmap)); assert(!bdrv_dirty_bitmap_has_successor(bitmap)); - assert(!bitmap->meta); QLIST_REMOVE(bitmap, list); hbitmap_free(bitmap->bitmap); g_free(bitmap->name); @@ -557,15 +525,6 @@ BdrvDirtyBitmapIter *bdrv_dirty_iter_new(BdrvDirtyBitm= ap *bitmap) return iter; } =20 -BdrvDirtyBitmapIter *bdrv_dirty_meta_iter_new(BdrvDirtyBitmap *bitmap) -{ - BdrvDirtyBitmapIter *iter =3D g_new(BdrvDirtyBitmapIter, 1); - hbitmap_iter_init(&iter->hbi, bitmap->meta, 0); - iter->bitmap =3D bitmap; - bitmap->active_iterators++; - return iter; -} - void bdrv_dirty_iter_free(BdrvDirtyBitmapIter *iter) { if (!iter) { @@ -712,11 +671,6 @@ int64_t bdrv_get_dirty_count(BdrvDirtyBitmap *bitmap) return hbitmap_count(bitmap->bitmap); } =20 -int64_t bdrv_get_meta_dirty_count(BdrvDirtyBitmap *bitmap) -{ - return hbitmap_count(bitmap->meta); -} - bool bdrv_dirty_bitmap_readonly(const BdrvDirtyBitmap *bitmap) { return bitmap->readonly; --=20 2.21.0