diff options
Diffstat (limited to 'include/linux/sunrpc/svc.h')
| -rw-r--r-- | include/linux/sunrpc/svc.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 5eabded1106..c27d806af31 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -17,6 +17,25 @@ #include <linux/wait.h> #include <linux/mm.h> + +/* + * + * RPC service thread pool. + * + * Pool of threads and temporary sockets. Generally there is only + * a single one of these per RPC service, but on NUMA machines those + * services that can benefit from it (i.e. nfs but not lockd) will + * have one pool per NUMA node. This optimisation reduces cross- + * node traffic on multi-node NUMA NFS servers. + */ +struct svc_pool { + unsigned int sp_id; /* pool id; also node id on NUMA */ + spinlock_t sp_lock; /* protects all fields */ + struct list_head sp_threads; /* idle server threads */ + struct list_head sp_sockets; /* pending sockets */ + unsigned int sp_nrthreads; /* # of threads in pool */ +} ____cacheline_aligned_in_smp; + /* * RPC service. * @@ -28,8 +47,6 @@ * We currently do not support more than one RPC program per daemon. */ struct svc_serv { - struct list_head sv_threads; /* idle server threads */ - struct list_head sv_sockets; /* pending sockets */ struct svc_program * sv_program; /* RPC program */ struct svc_stat * sv_stats; /* RPC statistics */ spinlock_t sv_lock; @@ -44,6 +61,9 @@ struct svc_serv { char * sv_name; /* service name */ + unsigned int sv_nrpools; /* number of thread pools */ + struct svc_pool * sv_pools; /* array of thread pools */ + void (*sv_shutdown)(struct svc_serv *serv); /* Callback to use when last thread * exits. @@ -138,6 +158,7 @@ struct svc_rqst { int rq_addrlen; struct svc_serv * rq_server; /* RPC service definition */ + struct svc_pool * rq_pool; /* thread pool */ struct svc_procedure * rq_procinfo; /* procedure info */ struct auth_ops * rq_authop; /* authentication flavour */ struct svc_cred rq_cred; /* auth info */ |