[dm-devel] [bug report] BUG for REQ_OP_WRITE_ZEROES to dm-zoned

[Shinichiro Kawasaki]

On Apr 15, 2022 / 08:57, Damien Le Moal wrote:
> On 4/15/22 01:47, Mike Snitzer wrote:
> > On Thu, Apr 14 2022 at 12:29P -0400,
> > Mike Snitzer <snitzer at kernel.org> wrote:
> >  
> >> Thanks for the report, I've staged a fix here (btw, your change above
> >> needs to be paired with the 2nd hunk of my fix otherwise you won't get
> >> the bio split you desire):
> >>
> >> https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-5.18&id=3dfb6f5e95f26215ca08d348ca2ddb5ea6ea2349

Thank you Mike. Yes, I confirmed that the 2nd hunk is required for split.

> >>
> >> I'll be sending this to Linus later today or tomorrow.
> > 
> > FYI, I revised that commit with further cleanup to not pass
> > 'unsigned *len' to alloc_multiple_bios(), this commit is what will be
> > sent upstream soon:
> > 
> > https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-5.18&id=c2228f993c7592783b0a2bf7d169b17dfa4cbe2a
> 
> Looks good to me.
> 
> Nit: there is a typo in the commit message:
> 
> dm_accept_paertial_bio() -> dm_accept_partial_bio()
> 
> Feel free to add:
> 
> Reviewed-by: Damien Le Moal <damien.lemoal at opensource.wdc.com>

Another nit in the commit message is "abormal". I think you meant "abnormal".

I tested this revised patch and confrimed it fixes the issue. Good. Thanks.

Tested-by: Shinichiro Kawasaki <shinichiro.kawasaki at wdc.com>

-- 
Best Regards,
Shin'ichiro Kawasaki