On Dec 2, 2013, at 11:27, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > On Mon, Dec 02, 2013 at 11:00:50AM -0500, Trond Myklebust wrote: >>> Except for the non-rpc_client users of rpc_pipefs? >> >> There is the idmapper pipe which is created as part of setting up a NFSv4 mount: that could either call rpc_get_mount(), or just rely on the fact that the nfs_client has an rpc_client. Ditto for the DNS resolver pipe. > > We got idmapper, dns, pnfs-block upcall. > > idmapper seems per-nfs_client, the other two are created on module load > and removed at unload time. Do they need to be? AFAICS, we can trivially convert the DNS resolver to be created on mount. The pnfs block upcall looks to be a little more difficult, but we should be able to do it in ld_type->set_layoutdriver()/clear_layoutdriver(). > Similarly the pipe in nfsd works globally as well. Mount the rpc_pipefs in nfs4_state_create_net() and unmount it in nfs4_state_destroy_net()? Cheers Trond-- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
