On 12/01/15 21:27, Bernhard Voelker wrote: > On 01/12/2015 02:31 AM, Pádraig Brady wrote: >> On 11/01/15 23:36, Vladimir A. Pavlov wrote: >>> run /run tmpfs rw,noatime,nodiratime,nodev,noexec,mode=0755,size=1m 0 0 >>> /run/cgs/httpd /usr/cgs/httpd/run none rw,bind 0 0 > >> Thanks for the analysis and patch, >> Current tests pass at least with it. >> I'll analyse a little more, add tests and probably push. > > hmm, tmpfs is problematic anyway, as one can specify anything > as the dummy backing source device: > > $ mount -t tmpfs hello:/world /mnt > $ mount -t tmpfs something /mnt > $ mount -t tmpfs / /mnt > $ findmnt /mnt > TARGET SOURCE FSTYPE OPTIONS > /mnt hello:/world tmpfs rw,relatime > /mnt something tmpfs rw,relatime > /mnt / tmpfs rw,relatime > > $ df -a --out=source,target | grep /mnt > hello:/world /mnt > something /mnt > / /mnt > > I'd almost tend to recommend to classify tmpfs as dummy > file system like procfs etc.
I see what you mean. However we take dummy to mean, no associated storage in the memory hierarchy, which tmpfs clearly has. Pádraig
