On Mon, Mar 22, 2021 at 07:39:42PM +0200, Amir Goldstein wrote: > Jan, > > I needed the tmpfs patch for the userns filesystem mark POC, but it > looks useful for its own right to be able to set filesystem mount or > inode marks on tmpfs with FAN_REPORT_FID. Indeed. Seems how to generate the fs_id part based on the uuid is a bit controversial for some fses (from the xfs thread) but this series seems useful. Being able to place marks on tmpfs is worth it. Reviewed-by: Christian Brauner <christian.brauner@xxxxxxxxxx>