David Howells <dhowells@xxxxxxxxxx> writes: > Eric W. Biederman <ebiederm@xxxxxxxxxxxx> wrote: > >> Davids check will work for bind mounts as well. It just won't work it >> just won't work for files or subdirectories of some mountpoint. > > Bind mounts have to be done with open_tree() and move_mount(). You can't now > do fsmount() on something fspick()'d. But a bind mount will have mnt_root set to the the dentry that was bound. Therefore fspick as you are proposing modifying will work for the root of bind mounts, as well as the root of regular mounts. My apologies for not being clear. Eric
