diff options
| -rw-r--r-- | fs/afs/fs_probe.c | 25 | ||||
| -rw-r--r-- | include/trace/events/afs.h | 33 |
2 files changed, 56 insertions, 2 deletions
diff --git a/fs/afs/fs_probe.c b/fs/afs/fs_probe.c index 8008d3ecabab..c5702698b18b 100644 --- a/fs/afs/fs_probe.c +++ b/fs/afs/fs_probe.c @@ -102,7 +102,7 @@ void afs_fileserver_probe_result(struct afs_call *call) struct afs_address *addr = &alist->addrs[call->probe_index]; struct afs_server *server = call->server; unsigned int index = call->probe_index; - unsigned int rtt_us = 0, cap0; + unsigned int rtt_us = -1, cap0; int ret = call->error; _enter("%pU,%u", &server->uuid, index); @@ -182,6 +182,7 @@ responded: out: spin_unlock(&server->probe_lock); + trace_afs_fs_probe(server, false, alist, index, call->error, call->abort_code, rtt_us); _debug("probe %pU [%u] %pISpc rtt=%d ret=%d", &server->uuid, index, rxrpc_kernel_remote_addr(alist->addrs[index].peer), rtt_us, ret); @@ -207,6 +208,8 @@ void afs_fs_probe_fileserver(struct afs_net *net, struct afs_server *server, afs_get_addrlist(alist, afs_alist_trace_get_probe); read_unlock(&server->fs_lock); + afs_get_address_preferences(net, alist); + server->probed_at = jiffies; atomic_set(&server->probe_outstanding, all ? alist->nr_addrs : 1); memset(&server->probe, 0, sizeof(server->probe)); @@ -217,10 +220,28 @@ void afs_fs_probe_fileserver(struct afs_net *net, struct afs_server *server, all = true; if (all) { - for (index = 0; index < alist->nr_addrs; index++) + unsigned long unprobed = (1UL << alist->nr_addrs) - 1; + unsigned int i; + int best_prio; + + while (unprobed) { + best_prio = -1; + index = 0; + for (i = 0; i < alist->nr_addrs; i++) { + if (test_bit(i, &unprobed) && + alist->addrs[i].prio > best_prio) { + index = i; + best_prio = alist->addrs[i].prio; + } + } + __clear_bit(index, &unprobed); + + trace_afs_fs_probe(server, true, alist, index, 0, 0, 0); if (!afs_fs_get_capabilities(net, server, alist, index, key)) afs_fs_probe_not_done(net, server, alist, index); + } } else { + trace_afs_fs_probe(server, true, alist, index, 0, 0, 0); if (!afs_fs_get_capabilities(net, server, alist, index, key)) afs_fs_probe_not_done(net, server, alist, index); } diff --git a/include/trace/events/afs.h b/include/trace/events/afs.h index 0f68d67f52c8..81eb87fbcfa7 100644 --- a/include/trace/events/afs.h +++ b/include/trace/events/afs.h @@ -1387,6 +1387,39 @@ TRACE_EVENT(afs_alist, __entry->ref) ); +TRACE_EVENT(afs_fs_probe, + TP_PROTO(struct afs_server *server, bool tx, struct afs_addr_list *alist, + unsigned int addr_index, int error, s32 abort_code, unsigned int rtt_us), + + TP_ARGS(server, tx, alist, addr_index, error, abort_code, rtt_us), + + TP_STRUCT__entry( + __field(unsigned int, server) + __field(bool, tx) + __field(u16, addr_index) + __field(short, error) + __field(s32, abort_code) + __field(unsigned int, rtt_us) + __field_struct(struct sockaddr_rxrpc, srx) + ), + + TP_fast_assign( + __entry->server = server->debug_id; + __entry->tx = tx; + __entry->addr_index = addr_index; + __entry->error = error; + __entry->abort_code = abort_code; + __entry->rtt_us = rtt_us; + memcpy(&__entry->srx, rxrpc_kernel_remote_srx(alist->addrs[addr_index].peer), + sizeof(__entry->srx)); + ), + + TP_printk("s=%08x %s ax=%u e=%d ac=%d rtt=%d %pISpc", + __entry->server, __entry->tx ? "tx" : "rx", __entry->addr_index, + __entry->error, __entry->abort_code, __entry->rtt_us, + &__entry->srx.transport) + ); + #endif /* _TRACE_AFS_H */ /* This part must be outside protection */ |