Introduce write_threads, write_version and write_ports netlink commands similar to the ones available through the procfs. Changes since v6: - add the capability to pass sockaddr from userspace through listener-set command - rebase on top of nfsd-next Changes since v5: - for write_ports and write_version commands, userspace is expected to provide a NFS listeners/supported versions list it want to enable (all the other ports/versions will be disabled). - fix comments - rebase on top of nfsd-next Changes since v4: - rebase on top of nfsd-next tree Changes since v3: - drop write_maxconn and write_maxblksize for the moment - add write_version and write_ports commands Changes since v2: - use u32 to store nthreads in nfsd_nl_threads_set_doit - rename server-attr in control-plane in nfsd.yaml specs Changes since v1: - remove write_v4_end_grace command - add write_maxblksize and write_maxconn netlink commands This patch can be tested with user-space tool reported below: https://github.com/LorenzoBianconi/nfsdctl Jeff Layton (1): SUNRPC: add a new svc_find_listener helper Lorenzo Bianconi (4): NFSD: convert write_threads to netlink command NFSD: add write_version to netlink command SUNRPC: introduce svc_xprt_create_from_sa utility routine NFSD: add listener-{set,get} netlink command Documentation/netlink/specs/nfsd.yaml | 94 ++++++ fs/nfsd/netlink.c | 63 ++++ fs/nfsd/netlink.h | 10 + fs/nfsd/netns.h | 1 + fs/nfsd/nfsctl.c | 433 ++++++++++++++++++++++++++ fs/nfsd/nfssvc.c | 3 +- include/linux/sunrpc/svc_xprt.h | 5 + include/uapi/linux/nfsd_netlink.h | 44 +++ net/sunrpc/svc_xprt.c | 167 ++++++---- 9 files changed, 760 insertions(+), 60 deletions(-) -- 2.44.0
