On Sep 12, 2011, at 9:59 AM, Stanislav Kinsbursky wrote: > Hello. > This is an update for this plan. Added rpc_pipefs and NFS cache virtualization. You may need a per-net namespace NSM monitor list as well. That means running a per-namespace statd, each with its own local sm and sm.bak directories, and keeping the in-kernel monitor information sorted by namespace. The caller_name argument of NLM_LOCK needs to be the namespace's local utsname, and this string should be used as the my_name argument when sending an SM_MON upcall. I've got a patch or two that make this simpler. > ============================================================================== > > "NFS client" virtualization plan: > > _RPC layer_: > > 1) Make rpcbind clients (rpcb_local_clnt and rpcb_local4_clnt) to be > per net namespace. > > 2) Make RPC pipefs 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. > > 7) Make NFS cache per net namespace. > > > > -- > 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 > -- > 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
