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| author | Alasdair G Kergon <agk@redhat.com> | 2012-07-27 15:08:16 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2012-07-27 15:08:16 +0100 |
| commit | 1f4e0ff07980820977f45d6a5dbc81d3bb9ce4d3 (patch) | |
| tree | 5b5a159add010d09ea58ca12fd079b16f05333b8 /drivers/md/dm-snap.c | |
| parent | e49e582965b3694f07a106adc83ddb44aa4f0890 (diff) | |
| download | blackbird-op-linux-1f4e0ff07980820977f45d6a5dbc81d3bb9ce4d3.tar.gz blackbird-op-linux-1f4e0ff07980820977f45d6a5dbc81d3bb9ce4d3.zip | |
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>
Diffstat (limited to 'drivers/md/dm-snap.c')
| -rw-r--r-- | drivers/md/dm-snap.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 6c0f3e33923a..a143921feaf6 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -1849,7 +1849,7 @@ static void snapshot_merge_resume(struct dm_target *ti) } static int snapshot_status(struct dm_target *ti, status_type_t type, - char *result, unsigned int maxlen) + unsigned status_flags, char *result, unsigned maxlen) { unsigned sz = 0; struct dm_snapshot *snap = ti->private; @@ -2151,8 +2151,8 @@ static void origin_resume(struct dm_target *ti) ti->max_io_len = get_origin_minimum_chunksize(dev->bdev); } -static int origin_status(struct dm_target *ti, status_type_t type, char *result, - unsigned int maxlen) +static int origin_status(struct dm_target *ti, status_type_t type, + unsigned status_flags, char *result, unsigned maxlen) { struct dm_dev *dev = ti->private; |
