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dirty-bitmap: improve bdrv_dirty_bitmap_next_zero

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Add bytes parameter to the function, to limit searched range.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2019-01-15 18:26:49 -05:00 • committed by John Snow
parent 4b9f0b0f7c
commit 76d570dc49
7 changed files with 38 additions and 14 deletions
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3
block/backup.c
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@ -422,7 +422,8 @@ static void backup_incremental_init_copy_bitmap(BackupBlockJob *job)
break;
}
offset = bdrv_dirty_bitmap_next_zero(job->sync_bitmap, offset);
offset = bdrv_dirty_bitmap_next_zero(job->sync_bitmap, offset,
UINT64_MAX);
if (offset == -1) {
hbitmap_set(job->copy_bitmap, cluster, end - cluster);
break;

5
block/dirty-bitmap.c
View file

@ -781,9 +781,10 @@ char *bdrv_dirty_bitmap_sha256(const BdrvDirtyBitmap *bitmap, Error **errp)
return hbitmap_sha256(bitmap->bitmap, errp);
}
int64_t bdrv_dirty_bitmap_next_zero(BdrvDirtyBitmap *bitmap, uint64_t offset)
int64_t bdrv_dirty_bitmap_next_zero(BdrvDirtyBitmap *bitmap, uint64_t offset,
uint64_t bytes)
{
return hbitmap_next_zero(bitmap->bitmap, offset);
return hbitmap_next_zero(bitmap->bitmap, offset, bytes);
}
void bdrv_merge_dirty_bitmap(BdrvDirtyBitmap *dest, const BdrvDirtyBitmap *src,