From a6426475a75fb793d4c9dd9fe94815e8d18ddaa1 Mon Sep 17 00:00:00 2001 From: Vladimir Sementsov-Ogievskiy Date: Thu, 3 Mar 2022 20:43:41 +0100 Subject: block/dirty-bitmap: introduce bdrv_dirty_bitmap_status() Add a convenient function similar with bdrv_block_status() to get status of dirty bitmap. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Hanna Reitz Message-Id: <20220303194349.2304213-9-vsementsov@virtuozzo.com> Signed-off-by: Hanna Reitz --- include/qemu/hbitmap.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/qemu/hbitmap.h') diff --git a/include/qemu/hbitmap.h b/include/qemu/hbitmap.h index 5e71b6d..5bd986a 100644 --- a/include/qemu/hbitmap.h +++ b/include/qemu/hbitmap.h @@ -340,6 +340,18 @@ bool hbitmap_next_dirty_area(const HBitmap *hb, int64_t start, int64_t end, int64_t max_dirty_count, int64_t *dirty_start, int64_t *dirty_count); +/* + * bdrv_dirty_bitmap_status: + * @hb: The HBitmap to operate on + * @start: The bit to start from + * @count: Number of bits to proceed + * @pnum: Out-parameter. How many bits has same value starting from @start + * + * Returns true if bitmap is dirty at @start, false otherwise. + */ +bool hbitmap_status(const HBitmap *hb, int64_t start, int64_t count, + int64_t *pnum); + /** * hbitmap_iter_next: * @hbi: HBitmapIter to operate on. -- cgit v1.1