tree 1fa478aa49c24d60417a2e1239050c4c1435a0dc
parent dfe25020689bb2d318782d2c9c7141203583fc70
author Chris Mason <chris.mason@oracle.com> 1210708986 -0400
committer Chris Mason <chris.mason@oracle.com> 1222355043 -0400

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>