tree df8b87e504ad076d92bb691e3ea966b29957ef4c
parent 452d7a620dc38cb525c403aa4b445028da359268
author Joe Thornber <ejt@redhat.com> 1412944994 +0100
committer Mike Snitzer <snitzer@redhat.com> 1415651128 -0500

dm thin: defer whole cells rather than individual bios

This avoids dropping the cell, so increases the probability that other
bios will collect within the cell, rather than being passed individually
to the worker.

Also add required process_cell and process_discard_cell error handling
wrappers and set associated pool-mode function pointers accordingly.

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