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block/dirty-bitmap: add _next_dirty API

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We have bdrv_dirty_bitmap_next_zero, let's add corresponding
bdrv_dirty_bitmap_next_dirty, which is more comfortable to use than
bitmap iterators in some cases.

For test modify test_hbitmap_next_zero_check_range to check both
next_zero and next_dirty and add some new checks.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20200205112041.6003-7-vsementsov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2020-02-05 14:20:37 +03:00 • committed by John Snow
parent 642700fda0
commit 9399c54b75
5 changed files with 126 additions and 85 deletions
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6
block/dirty-bitmap.c
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@ -860,6 +860,12 @@ char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp)
return hbitmap_sha256(bitmap->bitmap, errp);
}
int64_t bdrv_dirty_bitmap_next_dirty(BdrvDirtyBitmap *bitmap, int64_t offset,
int64_t bytes)
{
return hbitmap_next_dirty(bitmap->bitmap, offset, bytes);
}
int64_t bdrv_dirty_bitmap_next_zero(BdrvDirtyBitmap *bitmap, int64_t offset,
int64_t bytes)
{