Re: [f2fs-dev] [PATCH] f2fs: relax permission for atomic/volatile ioctls

[Chao Yu <chao@kernel.org>]

On 2017/7/6 10:23, Jaegeuk Kim wrote:
> This patch allows atomic/volatile ioctls for sqlite under sdcardfs.

Out of curiosity, we will lose some capable when passing through sdcardfs?

Thanks,

> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>> ---
>  fs/f2fs/file.c | 15 ---------------
>  1 file changed, 15 deletions(-)
> 
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index f5d6357e8360..dd8f5d2caa48 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -1587,9 +1587,6 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
>  	struct inode *inode = file_inode(filp);
>  	int ret;
>  
> -	if (!inode_owner_or_capable(inode))
> -		return -EACCES;
> -
>  	if (!S_ISREG(inode->i_mode))
>  		return -EINVAL;
>  
> @@ -1636,9 +1633,6 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
>  	struct inode *inode = file_inode(filp);
>  	int ret;
>  
> -	if (!inode_owner_or_capable(inode))
> -		return -EACCES;
> -
>  	ret = mnt_want_write_file(filp);
>  	if (ret)
>  		return ret;
> @@ -1672,9 +1666,6 @@ static int f2fs_ioc_start_volatile_write(struct file *filp)
>  	struct inode *inode = file_inode(filp);
>  	int ret;
>  
> -	if (!inode_owner_or_capable(inode))
> -		return -EACCES;
> -
>  	if (!S_ISREG(inode->i_mode))
>  		return -EINVAL;
>  
> @@ -1707,9 +1698,6 @@ static int f2fs_ioc_release_volatile_write(struct file *filp)
>  	struct inode *inode = file_inode(filp);
>  	int ret;
>  
> -	if (!inode_owner_or_capable(inode))
> -		return -EACCES;
> -
>  	ret = mnt_want_write_file(filp);
>  	if (ret)
>  		return ret;
> @@ -1736,9 +1724,6 @@ static int f2fs_ioc_abort_volatile_write(struct file *filp)
>  	struct inode *inode = file_inode(filp);
>  	int ret;
>  
> -	if (!inode_owner_or_capable(inode))
> -		return -EACCES;
> -
>  	ret = mnt_want_write_file(filp);
>  	if (ret)
>  		return ret;
>