Fix btrfs_open_devices to deal with changes since the scan ioctls
Devices can change after the scan ioctls are done, and btrfs_open_devices
needs to be able to verify them as they are opened and used by the FS.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 454fe81..4df6b16 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -71,16 +71,16 @@
/* the device with this id has the most recent coyp of the super */
u64 latest_devid;
u64 latest_trans;
- u64 lowest_devid;
u64 num_devices;
+ u64 open_devices;
struct block_device *latest_bdev;
- struct block_device *lowest_bdev;
/* all of the devices in the FS */
struct list_head devices;
/* devices not currently being allocated */
struct list_head alloc_list;
struct list_head list;
+ int mounted;
};
struct btrfs_bio_stripe {