Re: [RFC] shared subtrees

From: Mike Waychison
Date: Wed Feb 02 2005 - 16:40:40 EST


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J. Bruce Fields wrote:
> On Wed, Feb 02, 2005 at 04:08:32PM -0500, Mike Waychison wrote:
>
>>Well, fwiw, I have the same kind of race in autofsng. I counter it by
>>building up the vfsmount tree elsewhere and mount --move'ing it.
>>
>>Unfortunately, the RFC states that moving a shared vfsmount is
>>prohibited (for which the reasoning slips my mind).
>
>
> See http://marc.theaimsgroup.com/?l=linux-fsdevel&m=110594248826226&w=2
>
> As I understand it, the problem isn't sharing of the vfsmount being
> moved, but sharing of the vfsmount on which that vfsmount is
> mounted.--b.

Okay, thanks for the refresher.

That still keeps you from using the 'build tree elsewhere' and 'mount
- --move' approach though, as the parent mountpoint would likely be shared.

- --
Mike Waychison
Sun Microsystems, Inc.
1 (650) 352-5299 voice
1 (416) 202-8336 voice

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