[linux-lvm] Bugs in DM_DEVICE_STATUS ioctl no_flush flag settings

Zdenek Kabelac zkabelac at redhat.com
Fri Apr 1 08:08:42 UTC 2016

Dne 31.3.2016 v 14:16 Zdenek Kabelac napsal(a):
> Dne 21.3.2016 v 13:06 Ming-Hung Tsai napsal(a):
>> Hi,
> Hi
>> ------------------------------------------------------------------
>> 3. Fix _metadatapercent_disp to not to handle thin volumes
> Actually I always planned to 'display' highest_mapped_sector -
> so I did now upstreamed it now (as it seemed arg was unused).
> So "Meta%" shows what's been the highest written sector as percent.
> We do plan to add either switch or new field to show those '%' in
> form of byte sizes in future...
> Not yet sure how useful or confusing this info is for now...
> But i.e. it's interesting to see  how much data is written
> by mkfs.ext4/xfs/reiserfs  and how far writes goes on a thin device.
> Time for complains...

Following here on myself - after longer debate how this would be
understandable by a user - we've concluded we will rather introduce
a new field and leave  "Meta%" empty - so there will
be rather a new field  'highest_size/HSize' instead.



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