linux-kernel - Re: [f2fs-dev] [PATCH v2] f2fs: compress: add compress

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Message-ID: <7ecb947e-2f8c-abd7-c116-c82c474fded7@huawei.com>
Date:   Fri, 27 Nov 2020 09:01:47 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Eric Biggers <ebiggers@...nel.org>
CC:     <jaegeuk@...nel.org>, <linux-kernel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>
Subject: Re: [f2fs-dev] [PATCH v2] f2fs: compress: add compress_inode to cache
 compressed blocks

On 2020/11/27 1:55, Eric Biggers wrote:
> On Thu, Nov 26, 2020 at 06:37:09PM +0800, Chao Yu wrote:
>> Support to use address space of inner inode to cache compressed block,
>> in order to improve cache hit ratio of random read.
>>
>> Signed-off-by: Chao Yu <yuchao0@...wei.com>
> 
> If the file is also encrypted, are the compressed pages that are cached still
> encrypted, or are they decrypted?

In current implementation, they are decrypted in cache.

Thanks,

> 
> - Eric
> .
>