Re: Re: [PATCH v8 00/20] fscache,erofs: fscache-based on-demand read semantics

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Hi Jiachen,

On Thu, Apr 14, 2022 at 04:10:10PM +0800, Jiachen Zhang wrote:
> On Sun, Apr 10, 2022 at 8:52 PM Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx> wrote:
> >
> > On Wed, Apr 06, 2022 at 03:55:52PM +0800, Jeffle Xu wrote:
> > > changes since v7:
> > > - rebased to 5.18-rc1
> > > - include "cachefiles: unmark inode in use in error path" patch into
> > >   this patchset to avoid warning from test robot (patch 1)
> > > - cachefiles: rename [cookie|volume]_key_len field of struct
> > >   cachefiles_open to [cookie|volume]_key_size to avoid potential
> > >   misunderstanding. Also add more documentation to
> > >   include/uapi/linux/cachefiles.h. (patch 3)
> > > - cachefiles: valid check for error code returned from user daemon
> > >   (patch 3)
> > > - cachefiles: change WARN_ON_ONCE() to pr_info_once() when user daemon
> > >   closes anon_fd prematurely (patch 4/5)
> > > - ready for complete review
> > >
> > >
> > > Kernel Patchset
> > > ---------------
> > > Git tree:
> > >
> > >     https://github.com/lostjeffle/linux.git jingbo/dev-erofs-fscache-v8
> > >
> > > Gitweb:
> > >
> > >     https://github.com/lostjeffle/linux/commits/jingbo/dev-erofs-fscache-v8
> > >
> > >
> > > User Daemon for Quick Test
> > > --------------------------
> > > Git tree:
> > >
> > >     https://github.com/lostjeffle/demand-read-cachefilesd.git main
> > >
> > > Gitweb:
> > >
> > >     https://github.com/lostjeffle/demand-read-cachefilesd
> > >
> >
> > Btw, we've also finished a preliminary end-to-end on-demand download
> > daemon in order to test the fscache on-demand kernel code as a real
> > end-to-end workload for container use cases:
> >
> > User guide: https://github.com/dragonflyoss/image-service/blob/fscache/docs/nydus-fscache.md
> > Video: https://youtu.be/F4IF2_DENXo
> >
> > Thanks,
> > Gao Xiang
> 
> Hi Xiang,
> 
> I think this feature is interesting and promising. So I have performed
> some tests according to the user guide. Hope it can be an upstream
> feature.

Many thanks for the feedback. We're doing our best to form/stablize it
now. Still struggle with some specific cases.

Thanks,
Gao Xiang


> 
> Thanks,
> Jiachen



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