Messages in this thread |  | | Date | Tue, 4 Sep 2001 04:07:51 +0200 (CEST) | From | Jean-Marc Saffroy <> | Subject | Re: [RFD] readonly/read-write semantics |
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On Sat, 1 Sep 2001, Alexander Viro wrote:
> IMO a part of the problem is that we are mixing "I'm not asking that > to be writable" with "I won't let you write". The former belongs > to the mounting side, the latter - to filesystem.
In addition to this, I would like to be sure that a (local or remote) file system that is not mounted r/w will not be affected by local activity (eg. not even if I pull the power cord).
> Notice that setups along the lines "mount /dev/sda5 read-only on > /home/jail/pub and read-write on /home/ftp/pub" are not that > unreasonable, so even for local filesystems it might make sense. > > IOW, I suspect that right solution would have two separate layers - > * does anyone get write access under that mountpoint? (VFS) > * is this fs asked to handle write access and had it agreed with that? > (filesystem)
Then a mount point could be compared to the notion of view in a database, right ? Sounds nice.
-- Jean-Marc Saffroy - Research Engineer - Silicomp Research Institute mailto:saffroy@ri.silicomp.fr
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