Re: [PATCH] private mounts

From: Christoph Hellwig
Date: Sat Apr 30 2005 - 03:37:21 EST

On Mon, Apr 25, 2005 at 11:58:50AM +0200, Miklos Szeredi wrote:
> > I can't write a script that reads your mind. But I sure can write
> > a script that finds out what you mounted in the other shells (with help
> > of a little wrapper around the mount command).
> How do you bind mount it from a different namespace? You _do_ need
> bind mount, since a new mount might require password input, etc...

Not nessecarily. The filesystem gets called into ->get_sb for every mount,
and can then decided whether to return an existing superblock instance or
setup a new one. If the credentials for the new mount match an old one
it can just reuse it. (e.g. for block based filesystem it will always reuse
right now)

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