A filesystem for virtualization

Posted May 17, 2019 15:42 UTC (Fri) by nybble41 (subscriber, #55106)
In reply to: A filesystem for virtualization by kmeyer
Parent article: A filesystem for virtualization

> Can't any user that can modify a file already set the mtime arbitrarily (under ordinary unix permissions)?

Setting the mtime is a metadata change which forces the the ctime to be updated, so the change would still be noticed. The proposed flag would allow updates to the file's content without any change in mtime *or* ctime.

A filesystem for virtualization

Posted May 17, 2019 16:03 UTC (Fri) by kmeyer (subscriber, #50720) [Link]

I see, thanks.

Taking a step back, I guess I’m not sure how the proposed open mode would be used by userspace NFS/Samba. The article is a bit light on details there.