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

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Message-ID: <YlLS47A9TpHyZJQi@B-P7TQMD6M-0146.local>
Date:   Sun, 10 Apr 2022 20:51:47 +0800
From:   Gao Xiang <hsiangkao@...ux.alibaba.com>
To:     Jeffle Xu <jefflexu@...ux.alibaba.com>
Cc:     dhowells@...hat.com, linux-cachefs@...hat.com, xiang@...nel.org,
        chao@...nel.org, linux-erofs@...ts.ozlabs.org,
        torvalds@...ux-foundation.org, gregkh@...uxfoundation.org,
        willy@...radead.org, linux-fsdevel@...r.kernel.org,
        joseph.qi@...ux.alibaba.com, bo.liu@...ux.alibaba.com,
        tao.peng@...ux.alibaba.com, gerry@...ux.alibaba.com,
        eguan@...ux.alibaba.com, linux-kernel@...r.kernel.org,
        luodaowen.backend@...edance.com, tianzichen@...ishou.com,
        fannaihao@...du.com
Subject: Re: [PATCH v8 00/20] fscache,erofs: fscache-based on-demand read
 semantics

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