tree a0d6222e44377d2283207d6da8de1d0e3467465d
parent 6afbc01d75c0266d7da32e2ec1f54d579a35703d
author Joe Thornber <ejt@redhat.com> 1402664229 +0100
committer Mike Snitzer <snitzer@redhat.com> 1406910631 -0400

dm thin: switch to an atomic_t for tracking pending new block preparations

Previously we used separate boolean values to track quiescing and
copying actions.  By switching to an atomic_t we can support blocks that
need a partial copy and partial zero.

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