Messages in this thread | | | Date | Tue, 11 Dec 2012 14:58:58 +0000 | From | Al Viro <> | Subject | Re: [Devel] [PATCH 2/6] nfsd: swap fs root in NFSd kthreads |
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On Tue, Dec 11, 2012 at 09:56:21AM -0500, J. Bruce Fields wrote:
> That looks simpler, but I still don't understand why we need it. > > I'm confused about how d_path works; I would have thought that > filesystem namespaces would have their own vfsmount trees and hence that > the (vfsmount, dentry) would be enough to specify the path. Is the root > argument for the case of chroot? Do we care about that?
__d_path() is relative pathname from here to there. Whether (and what for) is it wanted in case of nfsd patches is a separate question...
> Also, svc_export_request is called from mountd's read of > /proc/net/rpc/nfsd.export/channel. If mountd's root is wrong, then > nothing's going to work anyway.
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