From mboxrd@z Thu Jan 1 00:00:00 1970 From: "J. Bruce Fields" Subject: Re: [RFC] shared subtrees Date: Tue, 25 Jan 2005 16:55:11 -0500 Message-ID: <20050125215511.GD21764@fieldses.org> References: <20050113221851.GI26051@parcelfarce.linux.theplanet.co.uk> <20050116160213.GB13624@fieldses.org> <20050116180656.GQ26051@parcelfarce.linux.theplanet.co.uk> <20050116184209.GD13624@fieldses.org> <20050117061150.GS26051@parcelfarce.linux.theplanet.co.uk> <20050117173213.GC24830@fieldses.org> <1106687232.3298.37.camel@localhost> <41F6BE58.50208@sun.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Ram , Al Viro , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Return-path: To: Mike Waychison Content-Disposition: inline In-Reply-To: <41F6BE58.50208@sun.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Tue, Jan 25, 2005 at 04:47:04PM -0500, Mike Waychison wrote: > Although Al hasn't explicitly defined the semantics for mount > - --make-shared, I think the idea is that 'only' that mountpoint becomes > tagged as shared (becomes a member of a p-node of size 1). On Thu, Jan 13, 2005 at 10:18:51PM +0000, Al Viro wrote: > * we can mark a subtree sharable. Every vfsmount in the subtree > that is not already in some p-node gets a single-element p-node of its > own. Also, note that mount automatically sets up propagation that mirrors that of the mounted on vfsmount, so by default new mounts anywhere in the subtree will also be tagged as shared. --b.