nbd: fix how we set bd_invalidated
bd_invalidated is kind of a pain wrt partitions as it really only
triggers the partition rescan if it is set after bd_ops->open() runs, so
setting it when we reset the device isn't useful. We also sporadically
would still have partitions left over in some disconnect cases, so fix
this by always setting bd_invalidated on open if there's no
configuration or if we've had a disconnect action happen, that way the
partition table gets invalidated and rescanned properly.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 06725ce..24788bd 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -964,10 +964,6 @@
if (bdev->bd_openers > 1)
return;
bd_set_size(bdev, 0);
- if (max_part > 0) {
- blkdev_reread_part(bdev);
- bdev->bd_invalidated = 1;
- }
}
static void nbd_parse_flags(struct nbd_device *nbd)
@@ -1282,6 +1278,9 @@
refcount_set(&nbd->config_refs, 1);
refcount_inc(&nbd->refs);
mutex_unlock(&nbd->config_lock);
+ bdev->bd_invalidated = 1;
+ } else if (nbd_disconnected(nbd->config)) {
+ bdev->bd_invalidated = 1;
}
out:
mutex_unlock(&nbd_index_mutex);