tree 5b5a159add010d09ea58ca12fd079b16f05333b8
parent e49e582965b3694f07a106adc83ddb44aa4f0890
author Alasdair G Kergon <agk@redhat.com> 1343398096 +0100
committer Alasdair G Kergon <agk@redhat.com> 1343398096 +0100

dm thin: commit before gathering status

Commit outstanding metadata before returning the status for a dm thin
pool so that the numbers reported are as up-to-date as possible.

The commit is not performed if the device is suspended or if
the DM_NOFLUSH_FLAG is supplied by userspace and passed to the target
through a new 'status_flags' parameter in the target's dm_status_fn.

The userspace dmsetup tool will support the --noflush flag with the
'dmsetup status' and 'dmsetup wait' commands from version 1.02.76
onwards.

Tested-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>