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Date:   Fri, 30 Oct 2020 09:52:15 +0800
From:   Chao Yu <>
To:     Eric Biggers <>
CC:     Daeho Jeong <>, <>,
        <>, "Daeho Jeong" <>
Subject: Re: [f2fs-dev] [PATCH v5 2/2] f2fs: add F2FS_IOC_SET_COMPRESS_OPTION

On 2020/10/29 23:54, Eric Biggers wrote:
> Note that my intent with recommending ENOPKG was for it to be returned in the
> !f2fs_cops[algorithm] case, similar to how opening an encrypted file when the
> encryption algorithm is recognized but not supported by the kernel returns
> ENOPKG.  For a truly unrecognized algorithm (algorithm >= COMPRESS_MAX), EINVAL
> would probably be more appropriate.  So if !f2fs_cops[algorithm] is now allowed,
> then ENOPKG should no longer be among the error codes this ioctl returns.



> - Eric
> .

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