From 715a74d819926af38bfeddb3ae29c9fe6b7736bb Mon Sep 17 00:00:00 2001 From: Eric Blake Date: Mon, 25 Sep 2017 09:55:16 -0500 Subject: dirty-bitmap: Set iterator start by offset, not sector All callers to bdrv_dirty_iter_new() passed 0 for their initial starting point, drop that parameter. Most callers to bdrv_set_dirty_iter() were scaling a byte offset to a sector number; the exception qcow2-bitmap will be converted later to use byte rather than sector iteration. Move the scaling to occur internally to dirty bitmap code instead, so that callers now pass in bytes. Signed-off-by: Eric Blake Reviewed-by: John Snow Reviewed-by: Kevin Wolf Reviewed-by: Fam Zheng Signed-off-by: Kevin Wolf --- block/backup.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'block/backup.c') diff --git a/block/backup.c b/block/backup.c index 517c300a49..ac9c018717 100644 --- a/block/backup.c +++ b/block/backup.c @@ -372,7 +372,7 @@ static int coroutine_fn backup_run_incremental(BackupBlockJob *job) granularity = bdrv_dirty_bitmap_granularity(job->sync_bitmap); clusters_per_iter = MAX((granularity / job->cluster_size), 1); - dbi = bdrv_dirty_iter_new(job->sync_bitmap, 0); + dbi = bdrv_dirty_iter_new(job->sync_bitmap); /* Find the next dirty sector(s) */ while ((offset = bdrv_dirty_iter_next(dbi) * BDRV_SECTOR_SIZE) >= 0) { @@ -403,8 +403,7 @@ static int coroutine_fn backup_run_incremental(BackupBlockJob *job) /* If the bitmap granularity is smaller than the backup granularity, * we need to advance the iterator pointer to the next cluster. */ if (granularity < job->cluster_size) { - bdrv_set_dirty_iter(dbi, - cluster * job->cluster_size / BDRV_SECTOR_SIZE); + bdrv_set_dirty_iter(dbi, cluster * job->cluster_size); } last_cluster = cluster - 1; -- cgit v1.2.1