Re: [PATCH] ext4: Remove deprecated flag for noacl and noxattr_user mount options

["xuyang2018.jy@fujitsu.com" <xuyang2018.jy@fujitsu.com>]

on 2022/06/02 19:04, Lukas Czerner wrote:
> On Thu, Jun 02, 2022 at 06:01:39PM +0800, Yang Xu wrote:
>> Since kernel commit f70486055ee3 ("ext4: try to deprecate noacl and
>> noxattr_user mount options"), we deprecated these two mount options
>> because no other filesystem used the
>>
>> But now, acl has been used by ext4 ext2 btrfs f2fs ocfs2 and noxattr_user
>> has been used by ext4 ext2 f2fs ocfs2.
>

Firstly, sorry for this late reply. I am busy with other important thing 
last month.

> And many other fs don't have it. Is that your only reason for dropping
> the deprecation?

YES.

> I can easily imagine that those fs got it because ext4
> had it at the time.

Maybe.

>
> Moreover the deprecation message has been there for 10 years, have we
> seen anyone actually complaining that they want to keep it?

I don't see any complains since 2018 because I start to test xfs/ext4 
since that time

>
> Why not to just remove the option. I don't have a strong opinion either
> way, but it would be nice to remove stuff we don't need. Do you have a
> use case for it? If not, can we make it Opt_removed?

I don't have use case for it. OK, will send a remove patch tomorrow.

Best Regards
Yang Xu
>
> -Lukas
>
>>
>> I think it is time to remove deprecated flag for them.
>>
>> Signed-off-by: Yang Xu<xuyang2018.jy@fujitsu.com>
>> ---
>>   fs/ext4/super.c | 4 ----
>>   1 file changed, 4 deletions(-)
>>
>> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
>> index 450c918d68fc..8a0cc8815ee7 100644
>> --- a/fs/ext4/super.c
>> +++ b/fs/ext4/super.c
>> @@ -2116,10 +2116,6 @@ static int ext4_parse_param(struct fs_context *fc, struct fs_parameter *param)
>>   		else
>>   			return note_qf_name(fc, GRPQUOTA, param);
>>   #endif
>> -	case Opt_noacl:
>> -	case Opt_nouser_xattr:
>> -		ext4_msg(NULL, KERN_WARNING, deprecated_msg, param->key, "3.5");
>> -		break;
>>   	case Opt_sb:
>>   		if (fc->purpose == FS_CONTEXT_FOR_RECONFIGURE) {
>>   			ext4_msg(NULL, KERN_WARNING,
>> --
>> 2.23.0
>>
>