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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2022-03-03 20:43:41 +0100 |
|---|---|---|
| committer | Hanna Reitz <hreitz@redhat.com> | 2022-03-07 09:33:30 +0100 |
| commit | a6426475a75fb793d4c9dd9fe94815e8d18ddaa1 (patch) | |
| tree | 4d51988de6bc5f7c12b7b927799f68b054595e8f /include/qemu | |
| parent | 84b1e80f67f74a9d505802343458d4ebe8bdb3e4 (diff) | |
| download | qemu-a6426475a75fb793d4c9dd9fe94815e8d18ddaa1.zip qemu-a6426475a75fb793d4c9dd9fe94815e8d18ddaa1.tar.gz qemu-a6426475a75fb793d4c9dd9fe94815e8d18ddaa1.tar.bz2 | |
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 <vsementsov@virtuozzo.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20220303194349.2304213-9-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Diffstat (limited to 'include/qemu')
| -rw-r--r-- | include/qemu/hbitmap.h | 12 |
1 files changed, 12 insertions, 0 deletions
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. |