Re: [PATCH 4/4] vfs: fs/namei.c: if RESOLVE_NO_XDEV passed to openat2, don't *trigger* automounts

[Al Viro <viro@xxxxxxxxxxxxxxxxxx>]

On Sun, Aug 17, 2025 at 05:15:13PM +0000, Askar Safin wrote:

> @@ -1472,6 +1484,10 @@ static int __traverse_mounts(struct path *path, unsigned flags, bool *jumped,
>  		/* Allow the filesystem to manage the transit without i_rwsem
>  		 * being held. */
>  		if (flags & DCACHE_MANAGE_TRANSIT) {
> +			if (lookup_flags & LOOKUP_NO_XDEV) {
> +				ret = -EXDEV;
> +				break;

I don't thing it's right in RCU mode, if nothing else...