[DRBD-user] drbd build failure due to missing REQ_OP_WRITE_SAME symbol

[Akemi Yagi]

On Wed, Nov 2, 2022 at 2:59 AM Christoph Böhmwalder <
christoph.boehmwalder at linbit.com> wrote:

> Am 28.10.22 um 00:59 schrieb Akemi Yagi:> Hi Reid,
> >
> > RHEL 9.1 beta is out. Kernel is 5.14.0-160.el9. Since REQ_OP_WRITE_SAME
> > is gone like in the c9s kernel, drbd 9.x fails to build (tried with
> 9.1.11).
> >
> > With the way things stand, when RHEL 9.1 hits the road in November,
> ELRepo
> > will not be able to build kmod-drbd9x for RHEL-9 users.
> >
> > Any possible solution?
> >
> > Thanks,
> > Akemi
>
> We do have a fix for that on the drbd-9.1 development branch:
> 6842600a876d ("drbd: remove WRITE_SAME support").
>
> There has not been a 9.1 release since, and this is obviously untested,
> but maybe it works with 9.2.0?
>
> If you could try to compile the current state of the drbd-9.1 branch
> with that new RHEL kernel, that would be helpful.
>
> Regards,
> Christoph
> --
> Christoph Böhmwalder
> LINBIT | Keeping the Digital World Running
> DRBD HA —  Disaster Recovery — Software defined Storage
>

First I applied the commit "drbd: remove WRITE_SAME support". But the build
failed with (new) errors.

Then I tried the current code from the drbd-9.1 branch. I got:

... spatch: command not found
Successfully connected to SPAAS ...
(snip)
patching file drbd_receiver.c
Hunk #1 FAILED at 1721.
1 out of 1 hunk FAILED
patching file drbd_nl.c
Hunk #1 FAILED at 1940.
Hunk #2 FAILED at 2205.
2 out of 2 hunks FAILED
patching file drbd_main.c
Hunk #1 FAILED at 1569.
1 out of 1 hunk FAILED
patching file drbd_debugfs.c
Hunk #1 succeeded at 1828 (offset 1 line).
patching file drbd_dax_pmem.c

This is where I stand. I'm not sure how to proceed from here. Any help
appreciated.

Thanks,
Akemi
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