On 6/10/19 11:45 PM, Darrick J. Wong wrote:
> From: Darrick J. Wong <[email protected]>
> 
> Create a generic checking function for the incoming FS_IOC_SETFLAGS flag
> values so that we can standardize the implementations that follow ext4's
> flag values.
> 
> Signed-off-by: Darrick J. Wong <[email protected]>

 -- clip --

> diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
> index ba34dae8bd9f..c8446d2cd0c7 100644
> --- a/fs/jfs/ioctl.c
> +++ b/fs/jfs/ioctl.c
> @@ -98,6 +98,12 @@ long jfs_ioctl(struct file *filp, unsigned int cmd, 
> unsigned long arg)
>               /* Lock against other parallel changes of flags */
>               inode_lock(inode);
>  
> +             oldflags = jfs_map_ext2(jfs_inode->mode2 & JFS_FL_USER_VISIBLE,
> +                                     0);
> +             err = vfs_ioc_setflags_check(inode, oldflags, flags);
> +             if (err)
> +                     goto setflags_out;

inode_unlock(inode) is not called on the error path.

> +
>               oldflags = jfs_inode->mode2;
>  
>               /*

This patch leaves jfs's open-coded version of the same check.

Thanks,
Shaggy


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