tree 649129bc73b4de1dee662250892acf883cf45ba2
parent 6c2aad0567e693f9588d0a0683f96ed872fb4641
author Mark Fasheh <mark.fasheh@oracle.com> 1165863996 -0800
committer Mark Fasheh <mark.fasheh@oracle.com> 1167352739 -0800

ocfs2: always unmap in ocfs2_data_convert_worker()

Mmap-heavy clustered workloads were sometimes finding stale data on mmap
reads. The solution is to call unmap_mapping_range() on any down convert of
a data lock.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>