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| author | Eric Blake <eblake@redhat.com> | 2017-09-25 09:55:16 -0500 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-10-06 16:28:58 +0200 |
| commit | 715a74d819926af38bfeddb3ae29c9fe6b7736bb (patch) | |
| tree | bd59327204ac3178ee879d5bda558b04e2d6c9a3 /block/backup.c | |
| parent | c7e7c87ac8e03fe088f4b1f820da30e85a07fd6b (diff) | |
| download | qemu-715a74d819926af38bfeddb3ae29c9fe6b7736bb.zip qemu-715a74d819926af38bfeddb3ae29c9fe6b7736bb.tar.gz qemu-715a74d819926af38bfeddb3ae29c9fe6b7736bb.tar.bz2 | |
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 <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/backup.c')
| -rw-r--r-- | block/backup.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/block/backup.c b/block/backup.c index 517c300..ac9c018 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; |