| commit | a79245b3e5669dc203fec63644d988c451fe55d5 | [log] [tgz] |
|---|---|---|
| author | Mike Snitzer <snitzer@redhat.com> | Thu Aug 12 04:14:24 2010 +0100 |
| committer | Alasdair G Kergon <agk@redhat.com> | Thu Aug 12 04:14:24 2010 +0100 |
| tree | 8814720781708a95ac0bd23bb5232aa5ed9337bd | |
| parent | c96053b767d494d7c30e2be68097ac9defa9403f [diff] |
dm: split discard requests on target boundaries Update __clone_and_map_discard to loop across all targets in a DM device's table when it processes a discard bio. If a discard crosses a target boundary it must be split accordingly. Update __issue_target_requests and __issue_target_request to allow a cloned discard bio to have a custom start sector and size. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>