Re: [dm-devel] holders not working properly, regression [was: Re: use regular gendisk registration in device mapper v2]

2021-08-19 Thread Mike Snitzer
On Thu, Aug 19 2021 at 2:05P -0400, Christoph Hellwig wrote: > Manually reverting "block: remove the extra kobject reference in > bd_link_disk_holder" as show below fixed the issue for me. I'll spend > some more time tomorrow trying to fully understan the life time rules > tomorrow before

Re: [dm-devel] holders not working properly, regression [was: Re: use regular gendisk registration in device mapper v2]

2021-08-19 Thread Christoph Hellwig
Manually reverting "block: remove the extra kobject reference in bd_link_disk_holder" as show below fixed the issue for me. I'll spend some more time tomorrow trying to fully understan the life time rules tomorrow before sending a patch, though. --- >From 6b94f5435900d23769db8d07ff47415aab4ac63e

[dm-devel] holders not working properly, regression [was: Re: use regular gendisk registration in device mapper v2]

2021-08-19 Thread Mike Snitzer
On Wed, Aug 04 2021 at 5:41P -0400, Christoph Hellwig wrote: > Hi all, > > The device mapper code currently has a somewhat odd gendisk registration > scheme where it calls add_disk early, but uses a special flag to skip the > "queue registration", which is a major part of add_disk. This

Re: [dm-devel] [PATCH RESEND v6 1/9] pagemap: Introduce ->memory_failure()

2021-08-19 Thread ruansy.f...@fujitsu.com
> From: Jane Chu > Subject: Re: [PATCH RESEND v6 1/9] pagemap: Introduce ->memory_failure() > > Sorry, correction in line. > > On 8/19/2021 12:18 AM, Jane Chu wrote: > > Hi, Shiyang, > > > > >  > > 1) What does it take and cost to make >  > > > > xfs_sb_version_hasrmapbt(>m_sb) to return