linux-kernel - Re: [f2fs-dev] [PATCH v4 2/2] f2fs: fix compat F2FS_IOC_{MOVE, GARBAGE_COLLECT}

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Date:   Tue, 10 Nov 2020 09:54:07 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Eric Biggers <ebiggers@...nel.org>
CC:     Chao Yu <chao@...nel.org>, <jaegeuk@...nel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-f2fs-devel@...ts.sourceforge.net>
Subject: Re: [f2fs-dev] [PATCH v4 2/2] f2fs: fix compat F2FS_IOC_{MOVE,
 GARBAGE_COLLECT}_RANGE

On 2020/11/10 2:12, Eric Biggers wrote:
> On Mon, Nov 09, 2020 at 10:29:25AM +0800, Chao Yu wrote:
>>> Oh I see, the cp-related checks are at the beginning of f2fs_ioctl() too.
>>>
>>> In that case a much better approach would be to add __f2fs_ioctl() which is
>>> called by f2fs_ioctl() and f2fs_compat_ioctl(), and have f2fs_ioctl() and
>>> f2fs_compat_ioctl() do the cp-related checks but not __f2fs_ioctl().
>>
>> Will this cleanup make sense to you?
> 
> I think it would be better to do it the way I suggested.

Updated in v5.

Thanks,

> 
> - Eric
> .
>