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

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Date:   Wed, 13 Apr 2022 12:27:06 +0000
From:   田子晨 <tianzichen@...ishou.com>
To:     Gao Xiang <hsiangkao@...ux.alibaba.com>,
        "jefflexu@...ux.alibaba.com" <jefflexu@...ux.alibaba.com>
CC:     Jeffle Xu <jefflexu@...ux.alibaba.com>,
        "linux-erofs@...ts.ozlabs.org" <linux-erofs@...ts.ozlabs.org>,
        "fannaihao@...du.com" <fannaihao@...du.com>,
        "willy@...radead.org" <willy@...radead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dhowells@...hat.com" <dhowells@...hat.com>,
        "joseph.qi@...ux.alibaba.com" <joseph.qi@...ux.alibaba.com>,
        "linux-cachefs@...hat.com" <linux-cachefs@...hat.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "luodaowen.backend@...edance.com" <luodaowen.backend@...edance.com>,
        "gerry@...ux.alibaba.com" <gerry@...ux.alibaba.com>,
        "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>
Subject: Re: [PATCH v8 00/20] fscache,erofs: fscache-based on-demand read
 semantics



> 2022年4月10日 下午8:51，Gao Xiang <hsiangkao@...ux.alibaba.com> 写道：
> 
> 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

Tested-by: Zichen Tian <tianzichen@...ishou.com>

> Thanks,
> Gao Xiang
>