On Aug 19, 2011, at 5:46 AM, Stanislav Kinsbursky wrote: > 18.08.2011 19:54, Chuck Lever пишет: >> >> On Aug 16, 2011, at 7:00 AM, Stanislav Kinsbursky wrote: >> >>> Hello. >>> I'm going to virtualize NFS in mainline and here is my plan for NFS client part. >>> Any suggestions or criticism are welcome. >> >> What are you going to do about statd? >> > > Do you mean user-space statd? > If so, what are the problems with it do you see? You go to the trouble of setting up multiple transports for rpcbind upcalls. This suggests you plan to have an rpcbind in each net namespace. On behalf of NFS, the kernel also performs idmapd, gssd, and statd (NSM) upcalls. Do you intend to have separate instances of these daemons for each net namespace? > >>> ============================================================================== >>> >>> "NFS client" virtualization plan: >>> >>> _RPC layer_: >>> >>> 1) Make rpcbind clients (rpcb_local_clnt and rpcb_local4_clnt) to be >>> per net namespace. >>> >>> _NFS layer_: >>> >>> 1) Net namespace inheritance (current->nsproxy->net have to be used instead >>> of init_net). >>> Pointer to net namespace can be stored on nfs_client structure, which will >>> give easy access to proper net namespace during RPC transports creation. >>> >>> 2) Make Lockd kthread able to handle requests from different net namespaces. >>> >>> 3) Make NFS callbacks kthreads (nfs4_callback_svc and nfs4.1_callback_svc) able >>> to handle requests from different net namespaces. >>> >>> 4) Make NFS info lists (nfs_volume_list and nfs_client_list) to be per >>> net namespace in addition to global ones. >>> >>> 5) Make NFS proc variables and it's internal content variables to be per >>> net namespace in addition to global ones. >>> >>> 6) Make NFS sysctl variables and it's internal content variables to be per >>> net namespace in addition to global ones. >>> >>> >>> >>> -- >>> Best regards, >>> Stanislav Kinsbursky >>> -- >>> 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 >> > > > -- > Best regards, > Stanislav Kinsbursky > -- > 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 -- Chuck Lever chuck[dot]lever[at]oracle[dot]com -- 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
