linux-kernel - Re: [PATCH] f2fs: fix to restrict mount condition when without CONFIG

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Date:   Fri, 27 Jul 2018 18:12:05 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] f2fs: fix to restrict mount condition when without
 CONFIG_QUOTA

On 2018/7/27 18:08, Jaegeuk Kim wrote:
> On 07/25, Chao Yu wrote:
>> From: Chao Yu <yuchao0@...wei.com>
>>
>> Like quota_ino feature, we need to reject mounting RDWR with image
>> which enables project_quota feature when there is no CONFIG_QUOTA
>> be set in kernel.
>>
>> Signed-off-by: Chao Yu <yuchao0@...wei.com>
>> ---
>>  fs/f2fs/super.c | 6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
>> index dbc1cb53581f..bb40f08d2861 100644
>> --- a/fs/f2fs/super.c
>> +++ b/fs/f2fs/super.c
>> @@ -775,6 +775,12 @@ static int parse_options(struct super_block *sb, char *options)
>>  			 "without CONFIG_QUOTA");
>>  		return -EINVAL;
>>  	}
>> +	if (f2fs_sb_has_project_quota(sbi->sb) && !f2fs_readonly(sbi->sb)) {
>> +		ext4_msg(sb, KERN_ERR,
> 
> What is this?

Sorry, I just porting ext4's code here, but forget to change the function,
strangely, it pass my module compiling... :(, I have resend one patch.

Thanks,

> 
>> +			"Filesystem with project quota feature cannot be "
>> +			"mounted RDWR without CONFIG_QUOTA");
>> +		return -EINVAL;
>> +	}
>>  #endif
>>  
>>  	if (F2FS_IO_SIZE_BITS(sbi) && !test_opt(sbi, LFS)) {
>> -- 
>> 2.16.2.17.g38e79b1fd
> 
> .
>