Re: Linux can use a mountpoint for 2 Filesystems

From: H. Peter Anvin (hpa@zytor.com)
Date: Tue Nov 20 2001 - 14:43:23 EST


Andries.Brouwer@cwi.nl wrote:

> hpa:
>
>
>>There are real reasons to overmount a filesystem. It's getting to be
>>a usability problem, probably because Linux (UNLIKE MOST OTHER UNIXES)
>>didn't allow it until just recently. This change caused some
>>problems, including with the automount daemon. I would like to see an
>>option to mount(8) to allow it, by default disallow by policy.
>>
>
> mount(8) does not necessarily have such information:
> /etc/mtab is just a random file with random contents,
> and /proc/mounts need not exist.
>
> The cleanest way to do what you suggest would be to make the kernel
> refuse an overmount unless the mount(2) flags included the
> "overmount" flag.
>

Agreed.

        -hpa

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This archive was generated by hypermail 2b29 : Fri Nov 23 2001 - 21:00:24 EST