Messages in this thread | | | Date | Sat, 17 Jun 2006 01:29:42 +0200 (CEST) | From | Grzegorz Kulewski <> | Subject | Re: [RFC][PATCH 00/20] Mount writer count and read-only bind mounts (v2) |
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On Fri, 16 Jun 2006, Dave Hansen wrote: > The following series implements read-only bind mounts. This feature > allows a read-only view into a read-write filesystem.
Thanks, I like this idea very much. I think I have found at least one good use for it even before it is merged. :-)
But...
> One note: the previous patches all worked this way: > > mount --bind -o ro /source /dest > > These patches have changed that behavior. It now requires two steps: > > mount --bind /source /dest > mount -o remount,ro /dest
Isn't this some kind of security risk (at least in my planned use)? I mean - for a small fraction of second somebody seeing /dest can write /source... No?
Thanks,
Grzegorz Kulewski
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