tree a0798a5cddec99ad1bd7cda0b2b9a33164032e24
parent 8d30abff758b5f6c71343b7da6bb5de129a76c08
author Mike Snitzer <snitzer@redhat.com> 1386788480 -0500
committer Mike Snitzer <snitzer@redhat.com> 1389107665 -0500

dm thin: add mappings to end of prepared_* lists

Mappings could be processed in descending logical block order,
particularly if buffered IO is used.  This could adversely affect the
latency of IO processing.  Fix this by adding mappings to the end of the
'prepared_mappings' and 'prepared_discards' lists.

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