linux-kernel - Re: [PATCH v5 06/22] cachefiles: implement on-demand read

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Date:   Mon, 21 Mar 2022 22:51:45 +0800
From:   JeffleXu <jefflexu@...ux.alibaba.com>
To:     David Howells <dhowells@...hat.com>
Cc:     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
Subject: Re: [PATCH v5 06/22] cachefiles: implement on-demand read



On 3/21/22 10:05 PM, David Howells wrote:
> Jeffle Xu <jefflexu@...ux.alibaba.com> wrote:
> 
>> +	{ "cread",	cachefiles_ondemand_cread	},
> 
> Rather than adding the cread command, would it be better to use an ioctl on
> the anon fd as the /dev/cachefiles write op is serialised?

Sounds reasonable. I will try it in the next version. Thanks.

> 
>> +	/* Stop enqueuig request when daemon closes anon_fd prematurely. */
> 
> "Enqueuing"

Wow.. Maybe I need to update my checkpatch...

-- 
Thanks,
Jeffle