X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lnet%2Finclude%2Flnet%2Flib-lnet.h;h=b71941446efffb60a376bff722e4a3e1d84939b0;hp=3199853925c86a1c4c9684be5500426d177ca3d0;hb=fd32cd817cba336c684fe3ab7aac79705061e8b5;hpb=728822f4b73cd9ca31f9800dfdd013d86cb44faf diff --git a/lnet/include/lnet/lib-lnet.h b/lnet/include/lnet/lib-lnet.h index 3199853..b719414 100644 --- a/lnet/include/lnet/lib-lnet.h +++ b/lnet/include/lnet/lib-lnet.h @@ -74,9 +74,10 @@ extern struct lnet the_lnet; /* THE network */ /** exclusive lock */ #define LNET_LOCK_EX CFS_PERCPT_LOCK_EX -/* default timeout */ +/* default timeout and credits */ #define DEFAULT_PEER_TIMEOUT 180 -#define LNET_LND_DEFAULT_TIMEOUT 5 +#define DEFAULT_PEER_CREDITS 8 +#define DEFAULT_CREDITS 256 #ifdef HAVE_KERN_SOCK_GETNAME_2ARGS #define lnet_kernel_getpeername(sock, addr, addrlen) \ @@ -90,6 +91,25 @@ extern struct lnet the_lnet; /* THE network */ kernel_getsockname(sock, addr, addrlen) #endif +/* + * kernel 5.3: commit ef11db3310e272d3d8dbe8739e0770820dd20e52 + * kernel 4.18.0-193.el8: + * added in_dev_for_each_ifa_rtnl and in_dev_for_each_ifa_rcu + * and removed for_ifa and endfor_ifa. + * Use the _rntl variant as the current locking is rtnl. + */ +#ifdef HAVE_IN_DEV_FOR_EACH_IFA_RTNL +#define DECLARE_CONST_IN_IFADDR(ifa) const struct in_ifaddr *ifa +#define endfor_ifa(in_dev) +#else +#define DECLARE_CONST_IN_IFADDR(ifa) +#define in_dev_for_each_ifa_rtnl(ifa, in_dev) for_ifa((in_dev)) +#define in_dev_for_each_ifa_rcu(ifa, in_dev) for_ifa((in_dev)) +#endif + +int choose_ipv4_src(__u32 *ret, + int interface, __u32 dst_ipaddr, struct net *ns); + bool lnet_is_route_alive(struct lnet_route *route); bool lnet_is_gateway_alive(struct lnet_peer *gw); @@ -183,74 +203,73 @@ lnet_net_lock_current(void) #define lnet_ptl_lock(ptl) spin_lock(&(ptl)->ptl_lock) #define lnet_ptl_unlock(ptl) spin_unlock(&(ptl)->ptl_lock) -#define lnet_eq_wait_lock() spin_lock(&the_lnet.ln_eq_wait_lock) -#define lnet_eq_wait_unlock() spin_unlock(&the_lnet.ln_eq_wait_lock) #define lnet_ni_lock(ni) spin_lock(&(ni)->ni_lock) #define lnet_ni_unlock(ni) spin_unlock(&(ni)->ni_lock) #define MAX_PORTALS 64 -#define LNET_SMALL_MD_SIZE offsetof(struct lnet_libmd, md_iov.iov[1]) +#define LNET_SMALL_MD_SIZE offsetof(struct lnet_libmd, md_kiov[1]) extern struct kmem_cache *lnet_mes_cachep; /* MEs kmem_cache */ extern struct kmem_cache *lnet_small_mds_cachep; /* <= LNET_SMALL_MD_SIZE bytes * MDs kmem_cache */ +extern struct kmem_cache *lnet_udsp_cachep; extern struct kmem_cache *lnet_rspt_cachep; extern struct kmem_cache *lnet_msg_cachep; -static inline struct lnet_eq * -lnet_eq_alloc (void) +static inline bool +lnet_ni_set_status_locked(struct lnet_ni *ni, __u32 status) +__must_hold(&ni->ni_lock) { - struct lnet_eq *eq; - - LIBCFS_ALLOC(eq, sizeof(*eq)); - return (eq); -} + bool update = false; + + if (ni->ni_status && ni->ni_status->ns_status != status) { + CDEBUG(D_NET, "ni %s status changed from %#x to %#x\n", + libcfs_nid2str(ni->ni_nid), + ni->ni_status->ns_status, status); + ni->ni_status->ns_status = status; + update = true; + } -static inline void -lnet_eq_free(struct lnet_eq *eq) -{ - LIBCFS_FREE(eq, sizeof(*eq)); + return update; } -static inline struct lnet_libmd * -lnet_md_alloc(struct lnet_md *umd) +static inline bool +lnet_ni_set_status(struct lnet_ni *ni, __u32 status) { - struct lnet_libmd *md; - unsigned int size; - unsigned int niov; + bool update; - if ((umd->options & LNET_MD_KIOV) != 0) { - niov = umd->length; - size = offsetof(struct lnet_libmd, md_iov.kiov[niov]); - } else { - niov = ((umd->options & LNET_MD_IOVEC) != 0) ? - umd->length : 1; - size = offsetof(struct lnet_libmd, md_iov.iov[niov]); - } + lnet_ni_lock(ni); + update = lnet_ni_set_status_locked(ni, status); + lnet_ni_unlock(ni); - if (size <= LNET_SMALL_MD_SIZE) { - md = kmem_cache_alloc(lnet_small_mds_cachep, - GFP_NOFS | __GFP_ZERO); - if (md) { - CDEBUG(D_MALLOC, "slab-alloced 'md' of size %u at " - "%p.\n", size, md); - } else { - CDEBUG(D_MALLOC, "failed to allocate 'md' of size %u\n", - size); - return NULL; - } - } else { - LIBCFS_ALLOC(md, size); - } + return update; +} - if (md != NULL) { - /* Set here in case of early free */ - md->md_options = umd->options; - md->md_niov = niov; - INIT_LIST_HEAD(&md->md_list); +static inline void lnet_md_wait_handling(struct lnet_libmd *md, int cpt) +{ + wait_queue_head_t *wq = __var_waitqueue(md); +#ifdef HAVE_WAIT_QUEUE_ENTRY + struct wait_bit_queue_entry entry; + wait_queue_entry_t *wqe = &entry.wq_entry; +#else + struct wait_bit_queue entry; + wait_queue_entry_t *wqe = &entry.wait; +#endif + init_wait_var_entry(&entry, md, 0); + prepare_to_wait_event(wq, wqe, TASK_IDLE); + if (md->md_flags & LNET_MD_FLAG_HANDLING) { + /* Race with unlocked call to ->md_handler. + * It is safe to drop the res_lock here as the + * caller has only just claimed it. + */ + lnet_res_unlock(cpt); + schedule(); + /* Cannot check md now, it might be freed. Caller + * must reclaim reference and check. + */ + lnet_res_lock(cpt); } - - return md; + finish_wait(wq, wqe); } static inline void @@ -260,10 +279,7 @@ lnet_md_free(struct lnet_libmd *md) LASSERTF(md->md_rspt_ptr == NULL, "md %p rsp %p\n", md, md->md_rspt_ptr); - if ((md->md_options & LNET_MD_KIOV) != 0) - size = offsetof(struct lnet_libmd, md_iov.kiov[md->md_niov]); - else - size = offsetof(struct lnet_libmd, md_iov.iov[md->md_niov]); + size = offsetof(struct lnet_libmd, md_kiov[md->md_niov]); if (size <= LNET_SMALL_MD_SIZE) { CDEBUG(D_MALLOC, "slab-freed 'md' at %p.\n", md); @@ -418,7 +434,7 @@ lnet_msg_alloc(void) { struct lnet_msg *msg; - msg = kmem_cache_alloc(lnet_msg_cachep, GFP_NOFS | __GFP_ZERO); + msg = kmem_cache_zalloc(lnet_msg_cachep, GFP_NOFS); return (msg); } @@ -435,7 +451,7 @@ lnet_rspt_alloc(int cpt) { struct lnet_rsp_tracker *rspt; - rspt = kmem_cache_alloc(lnet_rspt_cachep, GFP_NOFS | __GFP_ZERO); + rspt = kmem_cache_zalloc(lnet_rspt_cachep, GFP_NOFS); if (rspt) { lnet_net_lock(cpt); the_lnet.ln_counters[cpt]->lct_health.lch_rst_alloc++; @@ -498,11 +514,14 @@ struct lnet_net *lnet_get_net_locked(__u32 net_id); int lnet_lib_init(void); void lnet_lib_exit(void); +extern unsigned int lnet_response_tracking; extern unsigned lnet_transaction_timeout; extern unsigned lnet_retry_count; +extern unsigned int lnet_lnd_timeout; extern unsigned int lnet_numa_range; extern unsigned int lnet_health_sensitivity; extern unsigned int lnet_recovery_interval; +extern unsigned int lnet_recovery_limit; extern unsigned int lnet_peer_discovery_disabled; extern unsigned int lnet_drop_asym_route; extern unsigned int router_sensitivity_percentage; @@ -520,6 +539,8 @@ void lnet_notify_locked(struct lnet_peer_ni *lp, int notifylnd, int alive, int lnet_add_route(__u32 net, __u32 hops, lnet_nid_t gateway_nid, __u32 priority, __u32 sensitivity); int lnet_del_route(__u32 net, lnet_nid_t gw_nid); +void lnet_move_route(struct lnet_route *route, struct lnet_peer *lp, + struct list_head *rt_list); void lnet_destroy_routes(void); int lnet_get_route(int idx, __u32 *net, __u32 *hops, lnet_nid_t *gateway, __u32 *alive, __u32 *priority, @@ -528,6 +549,7 @@ int lnet_get_rtr_pool_cfg(int idx, struct lnet_ioctl_pool_cfg *pool_cfg); struct lnet_ni *lnet_get_next_ni_locked(struct lnet_net *mynet, struct lnet_ni *prev); struct lnet_ni *lnet_get_ni_idx_locked(int idx); +int lnet_get_net_healthv_locked(struct lnet_net *net); extern int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, struct libcfs_ioctl_hdr __user *uparam); @@ -535,6 +557,11 @@ extern int lnet_get_peer_list(__u32 *countp, __u32 *sizep, struct lnet_process_id __user *ids); extern void lnet_peer_ni_set_healthv(lnet_nid_t nid, int value, bool all); extern void lnet_peer_ni_add_to_recoveryq_locked(struct lnet_peer_ni *lpni); +extern int lnet_peer_add_pref_nid(struct lnet_peer_ni *lpni, lnet_nid_t nid); +extern void lnet_peer_clr_pref_nids(struct lnet_peer_ni *lpni); +extern int lnet_peer_del_pref_nid(struct lnet_peer_ni *lpni, lnet_nid_t nid); +void lnet_peer_ni_set_selection_priority(struct lnet_peer_ni *lpni, + __u32 priority); void lnet_router_debugfs_init(void); void lnet_router_debugfs_fini(void); @@ -553,6 +580,8 @@ int lnet_dyn_add_ni(struct lnet_ioctl_config_ni *conf); int lnet_dyn_del_ni(struct lnet_ioctl_config_ni *conf); int lnet_clear_lazy_portal(struct lnet_ni *ni, int portal, char *reason); struct lnet_net *lnet_get_net_locked(__u32 net_id); +void lnet_net_clr_pref_rtrs(struct lnet_net *net); +int lnet_net_add_pref_rtr(struct lnet_net *net, lnet_nid_t gw_nid); int lnet_islocalnid(lnet_nid_t nid); int lnet_islocalnet(__u32 net); @@ -565,13 +594,12 @@ void lnet_build_msg_event(struct lnet_msg *msg, enum lnet_event_kind ev_type); void lnet_msg_commit(struct lnet_msg *msg, int cpt); void lnet_msg_decommit(struct lnet_msg *msg, int cpt, int status); -void lnet_eq_enqueue_event(struct lnet_eq *eq, struct lnet_event *ev); void lnet_prep_send(struct lnet_msg *msg, int type, struct lnet_process_id target, unsigned int offset, unsigned int len); int lnet_send(lnet_nid_t nid, struct lnet_msg *msg, lnet_nid_t rtr_nid); int lnet_send_ping(lnet_nid_t dest_nid, struct lnet_handle_md *mdh, int nnis, - void *user_ptr, struct lnet_eq *eq, bool recovery); + void *user_ptr, lnet_handler_t handler, bool recovery); void lnet_return_tx_credits_locked(struct lnet_msg *msg); void lnet_return_rx_credits_locked(struct lnet_msg *msg); void lnet_schedule_blocked_locked(struct lnet_rtrbufpool *rbp); @@ -651,6 +679,7 @@ void lnet_set_reply_msg_len(struct lnet_ni *ni, struct lnet_msg *msg, void lnet_detach_rsp_tracker(struct lnet_libmd *md, int cpt); void lnet_clean_zombie_rstqs(void); +bool lnet_md_discarded(struct lnet_libmd *md); void lnet_finalize(struct lnet_msg *msg, int rc); bool lnet_send_error_simulation(struct lnet_msg *msg, enum lnet_msg_hstatus *hstatus); @@ -668,7 +697,6 @@ int lnet_msg_containers_create(void); char *lnet_health_error2str(enum lnet_msg_hstatus hstatus); char *lnet_msgtyp2str(int type); -void lnet_print_hdr(struct lnet_hdr *hdr); int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold); /** \addtogroup lnet_fault_simulation @{ */ @@ -691,50 +719,46 @@ bool lnet_delay_rule_match_locked(struct lnet_hdr *hdr, struct lnet_msg *msg); /** @} lnet_fault_simulation */ void lnet_counters_get_common(struct lnet_counters_common *common); -void lnet_counters_get(struct lnet_counters *counters); +int lnet_counters_get(struct lnet_counters *counters); void lnet_counters_reset(void); +static inline void +lnet_ni_set_sel_priority_locked(struct lnet_ni *ni, __u32 priority) +{ + ni->ni_sel_priority = priority; +} + +static inline void +lnet_net_set_sel_priority_locked(struct lnet_net *net, __u32 priority) +{ + net->net_sel_priority = priority; +} unsigned int lnet_iov_nob(unsigned int niov, struct kvec *iov); -int lnet_extract_iov(int dst_niov, struct kvec *dst, - int src_niov, struct kvec *src, +unsigned int lnet_kiov_nob(unsigned int niov, struct bio_vec *iov); +int lnet_extract_kiov(int dst_niov, struct bio_vec *dst, + int src_niov, struct bio_vec *src, unsigned int offset, unsigned int len); -unsigned int lnet_kiov_nob (unsigned int niov, lnet_kiov_t *iov); -int lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst, - int src_niov, lnet_kiov_t *src, - unsigned int offset, unsigned int len); - void lnet_copy_iov2iov(unsigned int ndiov, struct kvec *diov, unsigned int doffset, unsigned int nsiov, struct kvec *siov, unsigned int soffset, unsigned int nob); void lnet_copy_kiov2iov(unsigned int niov, struct kvec *iov, unsigned int iovoffset, - unsigned int nkiov, lnet_kiov_t *kiov, + unsigned int nkiov, struct bio_vec *kiov, unsigned int kiovoffset, unsigned int nob); -void lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov, +void lnet_copy_iov2kiov(unsigned int nkiov, struct bio_vec *kiov, unsigned int kiovoffset, unsigned int niov, struct kvec *iov, unsigned int iovoffset, unsigned int nob); -void lnet_copy_kiov2kiov(unsigned int ndkiov, lnet_kiov_t *dkiov, +void lnet_copy_kiov2kiov(unsigned int ndkiov, struct bio_vec *dkiov, unsigned int doffset, - unsigned int nskiov, lnet_kiov_t *skiov, + unsigned int nskiov, struct bio_vec *skiov, unsigned int soffset, unsigned int nob); static inline void -lnet_copy_iov2flat(int dlen, void *dest, unsigned int doffset, - unsigned int nsiov, struct kvec *siov, unsigned int soffset, - unsigned int nob) -{ - struct kvec diov = { .iov_base = dest, .iov_len = dlen }; - - lnet_copy_iov2iov(1, &diov, doffset, - nsiov, siov, soffset, nob); -} - -static inline void lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset, - unsigned int nsiov, lnet_kiov_t *skiov, + unsigned int nsiov, struct bio_vec *skiov, unsigned int soffset, unsigned int nob) { struct kvec diov = { .iov_base = dest, .iov_len = dlen }; @@ -744,17 +768,7 @@ lnet_copy_kiov2flat(int dlen, void *dest, unsigned int doffset, } static inline void -lnet_copy_flat2iov(unsigned int ndiov, struct kvec *diov, unsigned int doffset, - int slen, void *src, unsigned int soffset, - unsigned int nob) -{ - struct kvec siov = { .iov_base = src, .iov_len = slen }; - lnet_copy_iov2iov(ndiov, diov, doffset, - 1, &siov, soffset, nob); -} - -static inline void -lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov, +lnet_copy_flat2kiov(unsigned int ndiov, struct bio_vec *dkiov, unsigned int doffset, int slen, void *src, unsigned int soffset, unsigned int nob) { @@ -766,7 +780,7 @@ lnet_copy_flat2kiov(unsigned int ndiov, lnet_kiov_t *dkiov, void lnet_me_unlink(struct lnet_me *me); void lnet_md_unlink(struct lnet_libmd *md); -void lnet_md_deconstruct(struct lnet_libmd *lmd, struct lnet_md *umd); +void lnet_md_deconstruct(struct lnet_libmd *lmd, struct lnet_event *ev); struct page *lnet_kvaddr_to_page(unsigned long vaddr); int lnet_cpt_of_md(struct lnet_libmd *md, unsigned int offset); @@ -774,10 +788,10 @@ unsigned int lnet_get_lnd_timeout(void); void lnet_register_lnd(const struct lnet_lnd *lnd); void lnet_unregister_lnd(const struct lnet_lnd *lnd); -int lnet_connect(struct socket **sockp, lnet_nid_t peer_nid, - __u32 local_ip, __u32 peer_ip, int peer_port, struct net *ns); +struct socket *lnet_connect(lnet_nid_t peer_nid, int interface, + struct sockaddr *peeraddr, struct net *ns); void lnet_connect_console_error(int rc, lnet_nid_t peer_nid, - __u32 peer_ip, int port); + struct sockaddr *sa); int lnet_count_acceptor_nets(void); int lnet_acceptor_timeout(void); int lnet_acceptor_port(void); @@ -795,15 +809,16 @@ struct lnet_inetdev { int lnet_inet_enumerate(struct lnet_inetdev **dev_list, struct net *ns); int lnet_sock_setbuf(struct socket *socket, int txbufsize, int rxbufsize); int lnet_sock_getbuf(struct socket *socket, int *txbufsize, int *rxbufsize); -int lnet_sock_getaddr(struct socket *socket, bool remote, __u32 *ip, int *port); +int lnet_sock_getaddr(struct socket *socket, bool remote, + struct sockaddr_storage *peer); int lnet_sock_write(struct socket *sock, void *buffer, int nob, int timeout); int lnet_sock_read(struct socket *sock, void *buffer, int nob, int timeout); -int lnet_sock_listen(struct socket **sockp, __u32 ip, int port, int backlog, - struct net *ns); -int lnet_sock_connect(struct socket **sockp, int *fatal, - __u32 local_ip, int local_port, - __u32 peer_ip, int peer_port, struct net *ns); +struct socket *lnet_sock_listen(int port, int backlog, + struct net *ns); +struct socket *lnet_sock_connect(int interface, int local_port, + struct sockaddr *peeraddr, + struct net *ns); int lnet_peers_start_down(void); int lnet_peer_buffer_credits(struct lnet_net *net); @@ -831,8 +846,10 @@ static inline void lnet_ping_buffer_addref(struct lnet_ping_buffer *pbuf) static inline void lnet_ping_buffer_decref(struct lnet_ping_buffer *pbuf) { - if (atomic_dec_and_test(&pbuf->pb_refcnt)) + if (atomic_dec_and_test(&pbuf->pb_refcnt)) { + wake_up_var(&pbuf->pb_refcnt); lnet_ping_buffer_free(pbuf); + } } static inline int lnet_push_target_resize_needed(void) @@ -841,11 +858,13 @@ static inline int lnet_push_target_resize_needed(void) } int lnet_push_target_resize(void); +int lnet_push_target_post(struct lnet_ping_buffer *pbuf, + struct lnet_handle_md *mdh); void lnet_peer_push_event(struct lnet_event *ev); -int lnet_parse_ip2nets(char **networksp, char *ip2nets); -int lnet_parse_routes(char *route_str, int *im_a_router); -int lnet_parse_networks(struct list_head *nilist, char *networks, +int lnet_parse_ip2nets(const char **networksp, const char *ip2nets); +int lnet_parse_routes(const char *route_str, int *im_a_router); +int lnet_parse_networks(struct list_head *nilist, const char *networks, bool use_tcp_bonding); bool lnet_net_unique(__u32 net_id, struct list_head *nilist, struct lnet_net **net); @@ -880,6 +899,11 @@ void lnet_debug_peer(lnet_nid_t nid); struct lnet_peer_net *lnet_peer_get_net_locked(struct lnet_peer *peer, __u32 net_id); bool lnet_peer_is_pref_nid_locked(struct lnet_peer_ni *lpni, lnet_nid_t nid); +int lnet_peer_add_pref_nid(struct lnet_peer_ni *lpni, lnet_nid_t nid); +void lnet_peer_clr_pref_nids(struct lnet_peer_ni *lpni); +bool lnet_peer_is_pref_rtr_locked(struct lnet_peer_ni *lpni, lnet_nid_t gw_nid); +void lnet_peer_clr_pref_rtrs(struct lnet_peer_ni *lpni); +int lnet_peer_add_pref_rtr(struct lnet_peer_ni *lpni, lnet_nid_t nid); int lnet_peer_ni_set_non_mr_pref_nid(struct lnet_peer_ni *lpni, lnet_nid_t nid); int lnet_add_peer_ni(lnet_nid_t key_nid, lnet_nid_t nid, bool mr); int lnet_del_peer_ni(lnet_nid_t key_nid, lnet_nid_t nid); @@ -892,6 +916,13 @@ int lnet_get_peer_ni_info(__u32 peer_index, __u64 *nid, __u32 *peer_tx_qnob); int lnet_get_peer_ni_hstats(struct lnet_ioctl_peer_ni_hstats *stats); +static inline void +lnet_peer_net_set_sel_priority_locked(struct lnet_peer_net *lpn, __u32 priority) +{ + lpn->lpn_sel_priority = priority; +} + + static inline struct lnet_peer_net * lnet_find_peer_net_locked(struct lnet_peer *peer, __u32 net_id) { @@ -938,6 +969,8 @@ lnet_peer_needs_push(struct lnet_peer *lp) { if (!(lp->lp_state & LNET_PEER_MULTI_RAIL)) return false; + if (lp->lp_state & LNET_PEER_MARK_DELETED) + return false; if (lp->lp_state & LNET_PEER_FORCE_PUSH) return true; if (lp->lp_state & LNET_PEER_NO_DISCOVERY) @@ -951,8 +984,8 @@ lnet_peer_needs_push(struct lnet_peer *lp) } /* - * A peer is alive if it satisfies the following two conditions: - * 1. peer health >= LNET_MAX_HEALTH_VALUE * router_sensitivity_percentage + * A peer NI is alive if it satisfies the following two conditions: + * 1. peer NI health >= LNET_MAX_HEALTH_VALUE * router_sensitivity_percentage * 2. the cached NI status received when we discover the peer is UP */ static inline bool @@ -992,18 +1025,62 @@ lnet_set_lpni_healthv_locked(struct lnet_peer_ni *lpni, int value) lnet_update_peer_net_healthv(lpni); } +static inline bool +lnet_atomic_add_unless_max(atomic_t *v, int a, int u) +{ + int c = atomic_read(v); + bool mod = false; + int old; + int m; + + if (c == u) + return mod; + + for (;;) { + if (c + a >= u) + m = u; + else + m = c + a; + old = atomic_cmpxchg(v, c, m); + + if (old == u) + break; + + if (old == c) { + mod = true; + break; + } + c = old; + } + + return mod; +} + static inline void -lnet_inc_lpni_healthv_locked(struct lnet_peer_ni *lpni) +lnet_inc_lpni_healthv_locked(struct lnet_peer_ni *lpni, int value) { /* only adjust the net health if the lpni health value changed */ - if (atomic_add_unless(&lpni->lpni_healthv, 1, LNET_MAX_HEALTH_VALUE)) + if (lnet_atomic_add_unless_max(&lpni->lpni_healthv, value, + LNET_MAX_HEALTH_VALUE)) lnet_update_peer_net_healthv(lpni); } static inline void -lnet_inc_healthv(atomic_t *healthv) +lnet_inc_healthv(atomic_t *healthv, int value) +{ + lnet_atomic_add_unless_max(healthv, value, LNET_MAX_HEALTH_VALUE); +} + +static inline int +lnet_get_list_len(struct list_head *list) { - atomic_add_unless(healthv, 1, LNET_MAX_HEALTH_VALUE); + struct list_head *l; + int count = 0; + + list_for_each(l, list) + count++; + + return count; } void lnet_incr_stats(struct lnet_element_stats *stats,