On 1/29/2019 4:52 PM, Christoph Hellwig wrote:
On Mon, Jan 28, 2019 at 11:54:08PM -0500, Martin K. Petersen wrote:
That said, now that we have REQ_OP_WRITE_ZEROES (where the LBS is
irrelevant due to the payload being the ZERO_PAGE), it may be worthwhile
to remove REQ_OP_WRITE_SAME. I think drbd is the only user relying on a
non-zero payload. The target code ends up manually iterating, if I
remember correctly...
I had a series to remove it a while ago, but you wanted to keep it at
that point. I can resurrect it.
Do you mean to remove the `blkdev_issue_write_same` interface?
I think we should fix the problem first because other users may also encounter
the same problem.
.
