tree e5800ddfd965032bcd139ff4595e64d3868a6a5c
parent c7662111c741bc04a7192f2a00aad608cbc0b205
author Miao Xie <miaox@cn.fujitsu.com> 1409751332 +0800
committer Chris Mason <clm@fb.com> 1410986311 -0700

Btrfs: fix unprotected assignment of the target device

We didn't protect the assignment of the target device, it might cause the
problem that the super block update was skipped because we might find wrong
size of the target device during the assignment. Fix it by moving the
assignment sentences into the initialization function of the target device.
And there is another merit that we can check if the target device is suitable
more early.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>