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Message-Id: <E1HdNZn-0006i9-00@dorka.pomaz.szeredi.hu> Date: Mon, 16 Apr 2007 11:32:47 +0200 From: Miklos Szeredi <miklos@...redi.hu> To: linuxram@...ibm.com CC: devel@...nvz.org, serue@...ibm.com, linux-kernel@...r.kernel.org, containers@...ts.osdl.org, viro@....linux.org.uk, linux-fsdevel@...r.kernel.org, akpm@...ux-foundation.org Subject: Re: [Devel] Re: [patch 05/10] add "permit user mounts in new namespace" clone flag > > Given the existence of shared subtrees allowing/denying this at the > > mount > > namespace level is silly and wrong. > > > > If we need more than just the filesystem permission checks can we > > make it a mount flag settable with mount and remount that allows > > non-privileged users the ability to create mount points under it > > in directories they have full read/write access to. > > Also for bind-mount and remount operations the flag has to be propagated > down its propagation tree. Otherwise a unpriviledged mount in a shared > mount wont get reflected in its peers and slaves, leading to unidentical > shared-subtrees. That's an interesting question. Do we want shared mounts to be totally identical, including mnt_flags? It doesn't look as if do_remount() guarantees that currently. Miklos - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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