Re: [PATCH 31/34] vfs: syscall: Add fspick() to select a superblock for reconfiguration [ver #12]

Alan Jenkins [off-list ref] wrote:

I agree.  I'm happy to see this is using the same check as do_remount().


* change filesystem flags. dir should be a physical root of filesystem.
* If you've mounted a non-root directory somewhere and want to do remount
* on it - tough luck.
*/

Are you suggesting that it should only work at the ultimate root of a
superblock and not a bind mount somewhere within?

That's tricky to make work for NFS because s_root is a dummy dentry.

David