From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35323) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c9FHG-0005Q1-8I for qemu-devel@nongnu.org; Tue, 22 Nov 2016 12:54:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c9FHE-00034q-Cj for qemu-devel@nongnu.org; Tue, 22 Nov 2016 12:54:42 -0500 From: Vladimir Sementsov-Ogievskiy Date: Tue, 22 Nov 2016 20:54:21 +0300 Message-Id: <1479837270-79005-9-git-send-email-vsementsov@virtuozzo.com> In-Reply-To: <1479837270-79005-1-git-send-email-vsementsov@virtuozzo.com> References: <1479837270-79005-1-git-send-email-vsementsov@virtuozzo.com> Subject: [Qemu-devel] [PATCH 08/17] block/dirty-bitmap: add bdrv_dirty_bitmap_release_successor List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org, qemu-devel@nongnu.org Cc: pbonzini@redhat.com, armbru@redhat.com, eblake@redhat.com, famz@redhat.com, stefanha@redhat.com, amit.shah@redhat.com, quintela@redhat.com, mreitz@redhat.com, kwolf@redhat.com, peter.maydell@linaro.org, dgilbert@redhat.com, den@openvz.org, jsnow@redhat.com, vsementsov@virtuozzo.com, lirans@il.ibm.com To just release successor and unfreeze bitmap without any additional work. Signed-off-by: Vladimir Sementsov-Ogievskiy Signed-off-by: Denis V. Lunev --- block/dirty-bitmap.c | 10 ++++++++++ include/block/dirty-bitmap.h | 2 ++ 2 files changed, 12 insertions(+) diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c index ab2c7f5..32aa6eb 100644 --- a/block/dirty-bitmap.c +++ b/block/dirty-bitmap.c @@ -274,6 +274,16 @@ BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs, return parent; } +void bdrv_dirty_bitmap_release_successor(BlockDriverState *bs, + BdrvDirtyBitmap *parent) +{ + BdrvDirtyBitmap *successor = parent->successor; + + if (successor) { + bdrv_release_dirty_bitmap(bs, successor); + parent->successor = NULL; + } +} /** * Truncates _all_ bitmaps attached to a BDS. */ diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h index 57b476c..20b3ec7 100644 --- a/include/block/dirty-bitmap.h +++ b/include/block/dirty-bitmap.h @@ -20,6 +20,8 @@ BdrvDirtyBitmap *bdrv_dirty_bitmap_abdicate(BlockDriverState *bs, BdrvDirtyBitmap *bdrv_reclaim_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, Error **errp); +void bdrv_dirty_bitmap_release_successor(BlockDriverState *bs, + BdrvDirtyBitmap *bitmap); void bdrv_dirty_bitmap_enable_successor(BdrvDirtyBitmap *bitmap); BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs, const char *name); -- 1.8.3.1