Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
>>>>> "Mike" == Mike Snitzer <snitzer at redhat.com> writes: Mike> DM-thinp processes discards internally before it passes them down Mike> (if configured to do so). If a discard is smaller than the Mike> granularity of a thinp block (whose size is configurable) or if Mike> the start and end of the discard's extent is misaligned (relative Mike> to the thinp blocks mapped to the logical extent) then the discard Mike> won't actually discard partial thinp blocks. That's fine. You can throw away anything you don't like as long as discard_zeroes_data=0. But I don't understand why having an artificial cap at 2GB fixes things. Other than making it less likely for you to receive a runt by virtue of being aligned to a power of two. -- Martin K. Petersen Oracle Linux Engineering