[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [dm-devel] [PATCH 01/27] target: remove an incorrect unmap zeroes data deduction



Christoph,

> For block devices the target code implements UNMAP as calls to
> blkdev_issue_discard, which does not guarantee zeroing just because
> Write Zeroes is supported.
>
> Note that this does not affect the file backed path which uses
> fallocate to punch holes.

Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

-- 
Martin K. Petersen      Oracle Linux Engineering



 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.