On Fri, May 10, 2019 at 05:36:32PM +0000, Eric Wheeler wrote: > Hi Lars, > > We just tried 4.19.x and this bugs still exists. We applied the patch > which was originally submitted to this thread and it still applies cleanly > and seems to work for our use case. You mentioned that you had some older > code which zeroed out unaligned discard requests (or perhaps it was for a > different purpose) that you may be able to use to patch this. Could you > dig those up and see if we can get this solved? > > It would be nice to be able to use drbd with thin backing volumes from the > vanilla kernel. If this has already been fixed in something newer than > 4.19, then please point me to the commit.
I think it was merged upstream in 5.0 f31e583aa2c2 drbd: introduce P_ZEROES (REQ_OP_WRITE_ZEROES on the "wire") -- : Lars Ellenberg : LINBIT | Keeping the Digital World Running : DRBD -- Heartbeat -- Corosync -- Pacemaker : R&D, Integration, Ops, Consulting, Support DRBD® and LINBIT® are registered trademarks of LINBIT
