tree ff70d07dbafed0b3da8310eb9aff894ef8d4ed18
parent a12f5d48bdfeb5fe10157ac01c3de29269f457c6
author Joe Thornber <ejt@redhat.com> 1416838137 +0000
committer Mike Snitzer <snitzer@redhat.com> 1417451407 -0500

dm array: if resizing the array is a noop set the new root to the old one

This could've been quite bad (to return success but not update the new
root to point at the old) but in practice the only known consumer of the
dm array code is the DM cache target.  And the DM cache target passes in
the same old root to array_resize() anyway.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>