# Re: \[PATCH 2/2\] block: create ioctl to discard-or-zeroout a range of blocks

- From: Martin K. Petersen \<hidden\>
- Date: 2016-03-18 20:06:58 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2016/03/105875
- Thread: https://ratatoskr.run/linux-api/2016/03/105875/t.md

```text
>>>>> "Jeff" == Jeff Moyer [ref] writes:

Jeff> TRIM/UNMAP isn't just supported on solid state devices, though.  I
Jeff> do recall some enterprise thinly provisioned storage that would
Jeff> take ages to discard large regions.  I think that caused us to
Jeff> change the defaults for mkfs, right?

I think those have largely been fixed. But, yes.

-- 
Martin K. Petersen	Oracle Linux Engineering
```