From b8e6fb752e43b45b428487c244cab35f0ab94b10 Mon Sep 17 00:00:00 2001 From: John Snow Date: Fri, 17 Apr 2015 19:49:56 -0400 Subject: block: Add bitmap disabled status Add a status indicating the enabled/disabled state of the bitmap. A bitmap is by default enabled, but you can lock the bitmap into a read-only state by setting disabled = true. A previous version of this patch added a QMP interface for changing the state of the bitmap, but it has since been removed for now until a use case emerges where this state must be revealed to the user. The disabled state WILL be used internally for bitmap migration and bitmap persistence. Signed-off-by: Fam Zheng Signed-off-by: John Snow Reviewed-by: Max Reitz Reviewed-by: Stefan Hajnoczi Message-id: 1429314609-29776-9-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- include/block/block.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/block/block.h b/include/block/block.h index 0c0dd6d8b7..5d131f0372 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -458,9 +458,12 @@ BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs, const char *name); void bdrv_dirty_bitmap_make_anon(BlockDriverState *bs, BdrvDirtyBitmap *bitmap); void bdrv_release_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap); +void bdrv_disable_dirty_bitmap(BdrvDirtyBitmap *bitmap); +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(BdrvDirtyBitmap *bitmap); +bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap); int bdrv_get_dirty(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t sector); void bdrv_set_dirty_bitmap(BlockDriverState *bs, BdrvDirtyBitmap *bitmap, int64_t cur_sector, int nr_sectors); -- cgit v1.2.3-55-g7522