[dm-devel] [PATCH] dm-raid: add RAID discard support

[Martin K. Petersen]

>>>>> "Heinz" == Heinz Mauelshagen <heinzm at redhat.com> writes:

Heinz> BTW: we're referring to SSD discard_zeroes_data issues only so
Heinz> far it seems?  Can we be sure that SCSI unmap with the TPRZ bit
Heinz> set will always return zeroes on reads for arbitrary storage
Heinz> devices?

Only if we used WRITE SAME to discard.

-- 
Martin K. Petersen	Oracle Linux Engineering