Re: [PATCH] tracefs/eventfs: Use root and instance inodes as default ownership

[Al Viro]

On Wed, Jan 03, 2024 at 08:32:46PM -0500, Steven Rostedt wrote:

> +	/* Get the tracefs root from the parent */
> +	inode = d_inode(dentry->d_parent);
> +	inode = d_inode(inode->i_sb->s_root);

That makes no sense.  First of all, for any positive dentry we have
dentry->d_sb == dentry->d_inode->i_sb.  And it's the same for all
dentries on given superblock.  So what's the point of that dance?
If you want the root inode, just go for d_inode(dentry->d_sb->s_root)
and be done with that...