linux-kernel - Re: [f2fs-dev] [PATCH 1/2] f2fs: add missing quota_initialize in f2fs_set

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Date:   Wed, 25 Oct 2017 23:47:54 +0800
From:   Chao Yu <chao@...nel.org>
To:     Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <yuchao0@...wei.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH 1/2] f2fs: add missing quota_initialize in
 f2fs_set_acl

On 2017/10/25 14:30, Jaegeuk Kim wrote:
> On 10/25, Chao Yu wrote:
>> On 2017/10/25 13:44, Jaegeuk Kim wrote:
>>> On 10/24, Chao Yu wrote:
>>>> On 2017/10/24 6:14, Jaegeuk Kim wrote:
>>>>> This patch adds to call quota_intialize in f2fs_set_acl.
>>>>>
>>>>> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
>>>>> ---
>>>>>  fs/f2fs/acl.c | 4 ++++
>>>>>  1 file changed, 4 insertions(+)
>>>>>
>>>>> diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
>>>>> index 436b3a1464d9..f6471f9d707e 100644
>>>>> --- a/fs/f2fs/acl.c
>>>>> +++ b/fs/f2fs/acl.c
>>>>> @@ -209,6 +209,10 @@ static int __f2fs_set_acl(struct inode *inode, int type,
>>>>>  	int error;
>>>>>  	umode_t mode = inode->i_mode;
>>>>>  
>>>>> +	error = dquot_initialize(inode);
>>>>> +	if (error)
>>>>> +		return error;
>>>>
>>>> Could you move this to f2fs_setxattr, and also add missing dquot_initialize in
>>>> unlink and rename like ext4?
>>>
>>> I've checked that f2fs_unlink and f2fs_rename are calling dquot_initialize().
>>
>> ext4_unlink:
>>
>> 	retval = dquot_initialize(dir);
>> 	if (retval)
>> 		return retval;
>> 	retval = dquot_initialize(d_inode(dentry));
>> 	if (retval)
>> 		return retval;
>>
>> f2fs_unlink:
>>
>> 	err = dquot_initialize(dir);
>> 	if (err)
>> 		return err;
>>
>> ext4_rename
>>
>> 	retval = dquot_initialize(old.dir);
>> 	if (retval)
>> 		return retval;
>> 	retval = dquot_initialize(new.dir);
>> 	if (retval)
>> 		return retval;
>>
>> 	/* Initialize quotas before so that eventual writes go
>> 	 * in separate transaction */
>> 	if (new.inode) {
>> 		retval = dquot_initialize(new.inode);
>> 		if (retval)
>> 			return retval;
>> 	}
>>
>> f2fs_rename
>>
>> 	err = dquot_initialize(old_dir);
>> 	if (err)
>> 		goto out;
>>
>> 	err = dquot_initialize(new_dir);
>> 	if (err)
>> 		goto out;
>>
>> ext4 call one more dquot_initialize than f2fs, I didn't look into this in
>> detail, but it's better to check that. :)
> 
> Ah, okay. :)
> 
> This patch adds to call quota_intialize in f2fs_set_acl, f2fs_unlink,
> and f2fs_rename.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>

Reviewed-by: Chao Yu <yuchao0@...wei.com>

Thanks,

> ---
>  fs/f2fs/namei.c | 9 +++++++++
>  fs/f2fs/xattr.c | 4 ++++
>  2 files changed, 13 insertions(+)
> 
> diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
> index 944f7a6940b6..35d982a475b1 100644
> --- a/fs/f2fs/namei.c
> +++ b/fs/f2fs/namei.c
> @@ -436,6 +436,9 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
>  		return -EIO;
>  
>  	err = dquot_initialize(dir);
> +	if (err)
> +		return err;
> +	err = dquot_initialize(inode);
>  	if (err)
>  		return err;
>  
> @@ -815,6 +818,12 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
>  	if (err)
>  		goto out;
>  
> +	if (new_inode) {
> +		err = dquot_initialize(new_inode);
> +		if (err)
> +			goto out;
> +	}
> +
>  	old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page);
>  	if (!old_entry) {
>  		if (IS_ERR(old_page))
> diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
> index 147b481c6902..8801db019892 100644
> --- a/fs/f2fs/xattr.c
> +++ b/fs/f2fs/xattr.c
> @@ -686,6 +686,10 @@ int f2fs_setxattr(struct inode *inode, int index, const char *name,
>  	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
>  	int err;
>  
> +	err = dquot_initialize(inode);
> +	if (err)
> +		return err;
> +
>  	/* this case is only from init_inode_metadata */
>  	if (ipage)
>  		return __f2fs_setxattr(inode, index, name, value,
>