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Date:   Sat, 31 Oct 2020 08:32:51 +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: move ioctl interface definitions to
 separated file

On 2020/10/31 0:55, Eric Biggers wrote:
> On Fri, Oct 30, 2020 at 03:26:10PM +0800, Chao Yu wrote:
>> +
>> +struct f2fs_gc_range {
>> +	u32 sync;
>> +	u64 start;
>> +	u64 len;
>> +};
> 
> Userspace headers need to use __u32, __u64, etc. instead of u32, u64, etc.

Correct.

> 
> Did you try installing this header, and including it in a userspace program?

Let me do more test before next version.

Thanks,

> 
> - Eric
> .
> 

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