linux-kernel - Re: [PATCH] erofs: add sysfs node to control cached decompression strategy

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Message-ID: <9cdf389d-75a0-4529-a96f-23a4f2bcd4ee@linux.alibaba.com>
Date: Tue, 12 Nov 2024 09:06:03 +0800
From: Gao Xiang <hsiangkao@...ux.alibaba.com>
To: Chunhai Guo <guochunhai@...o.com>, "xiang@...nel.org" <xiang@...nel.org>
Cc: "chao@...nel.org" <chao@...nel.org>,
 "huyue2@...lpad.com" <huyue2@...lpad.com>,
 "jefflexu@...ux.alibaba.com" <jefflexu@...ux.alibaba.com>,
 "dhavale@...gle.com" <dhavale@...gle.com>,
 "linux-erofs@...ts.ozlabs.org" <linux-erofs@...ts.ozlabs.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] erofs: add sysfs node to control cached decompression
 strategy



On 2024/11/11 19:10, Chunhai Guo wrote:
> 在 2024/11/11 10:28, Gao Xiang 写道:
>> Hi Chunhai,
>>
>> On 2024/11/1 20:42, Chunhai Guo wrote:
>>> Add sysfs node to control cached decompression strategy, and all the
>>> cache will be cleaned up when the strategy is set to
>>> EROFS_ZIP_CACHE_DISABLED.
>>>
>>> Signed-off-by: Chunhai Guo <guochunhai@...o.com>
>> I guess remount could also change the decompression strategy?
>> Or there are some other concern that remount is not usable
>> for your use cases?
> Yes, remount can change the strategy. However, the cache will not be
> cleaned when the strategy is changed to EROFS_ZIP_CACHE_DISABLED. I will
> make another patch to address this during remount. Thank you for your
> suggestion.

Sounds good to me.

Thanks,
Gao Xiang