Re: [RFC] shared subtrees

From: J. Bruce Fields
Date: Sat Jan 15 2005 - 19:48:52 EST


On Thu, Jan 13, 2005 at 10:18:51PM +0000, Al Viro wrote:
> 2. mount
>
> We have a new vfsmount A and want to attach it to mountpoint somewhere in
> vfsmount B. If B does not belong to any p-node, everything is as usual; A
> doesn't become a member or slave of any p-node and is simply attached to B.
>
> If B belongs to a p-node p, consider all vfsmounts B1,...,Bn that get events
> propagated from B and all p-nodes p1,...,pk that contain them.
> * A gets cloned into n copies and these copies (A1,...,An) are attached
> to corresponding points in B1,...,Bn.
> * k new p-nodes (q1,...,qk) are created
> * Ai is contained in qj <=> Bi is contained in qj

Minor typo: looks like that second qj should be pj.

--b.
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