From: Paolo Bonzini <pbonz...@redhat.com>
Any data that is returned by read may be stale already, the bitmap
has to be cleared before issuing the read.
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
Message-Id: <20170605123908.18777-16-pbonz...@redhat.com>
Signed-off-by: Fam Zheng <f...@redhat.com>
---
migration/block.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/migration/block.c b/migration/block.c
index 0b3926e..7ed42c6 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -537,6 +537,8 @@ static int mig_save_device_dirty(QEMUFile *f,
BlkMigDevState *bmds,
} else {
nr_sectors = BDRV_SECTORS_PER_DIRTY_CHUNK;
}
+ bdrv_reset_dirty_bitmap(bmds->dirty_bitmap, sector, nr_sectors);
+
blk = g_new(BlkMigBlock, 1);
blk->buf = g_malloc(BLOCK_SIZE);
blk->bmds = bmds;
@@ -569,7 +571,6 @@ static int mig_save_device_dirty(QEMUFile *f,
BlkMigDevState *bmds,
g_free(blk);
}
- bdrv_reset_dirty_bitmap(bmds->dirty_bitmap, sector, nr_sectors);
sector += nr_sectors;
bmds->cur_dirty = sector;
--
2.9.4
