Re: [Jfs-discussion] [PATCH 1/4] vfs: create a generic checking function for FS_IOC_SETFLAGS

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On 6/10/19 11:45 PM, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> 
> 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 <darrick.wong@xxxxxxxxxx>

 -- 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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