From: Jason A. Donenfeld Date: Fri, 21 Jun 2019 20:32:48 +0000 (+0200) Subject: timekeeping: Use proper clock specifier names in functions X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=9285ec4c8b61d4930a575081abeba2cd4f449a74;p=openwrt%2Fstaging%2Fblogic.git timekeeping: Use proper clock specifier names in functions This makes boot uniformly boottime and tai uniformly clocktai, to address the remaining oversights. Signed-off-by: Jason A. Donenfeld Signed-off-by: Thomas Gleixner Reviewed-by: Arnd Bergmann Link: https://lkml.kernel.org/r/20190621203249.3909-2-Jason@zx2c4.com --- diff --git a/Documentation/core-api/timekeeping.rst b/Documentation/core-api/timekeeping.rst index 93cbeb9daec0..4d92b1ac8024 100644 --- a/Documentation/core-api/timekeeping.rst +++ b/Documentation/core-api/timekeeping.rst @@ -65,7 +65,7 @@ different format depending on what is required by the user: .. c:function:: u64 ktime_get_ns( void ) u64 ktime_get_boottime_ns( void ) u64 ktime_get_real_ns( void ) - u64 ktime_get_tai_ns( void ) + u64 ktime_get_clocktai_ns( void ) u64 ktime_get_raw_ns( void ) Same as the plain ktime_get functions, but returning a u64 number diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index dd745b58ffd8..1aea628ef6b8 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -264,10 +264,10 @@ static int kvm_pmu_rdpmc_vmware(struct kvm_vcpu *vcpu, unsigned idx, u64 *data) ctr_val = rdtsc(); break; case VMWARE_BACKDOOR_PMC_REAL_TIME: - ctr_val = ktime_get_boot_ns(); + ctr_val = ktime_get_boottime_ns(); break; case VMWARE_BACKDOOR_PMC_APPARENT_TIME: - ctr_val = ktime_get_boot_ns() + + ctr_val = ktime_get_boottime_ns() + vcpu->kvm->arch.kvmclock_offset; break; default: diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 83aefd759846..81a0914a1ec1 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1731,7 +1731,7 @@ void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr) raw_spin_lock_irqsave(&kvm->arch.tsc_write_lock, flags); offset = kvm_compute_tsc_offset(vcpu, data); - ns = ktime_get_boot_ns(); + ns = ktime_get_boottime_ns(); elapsed = ns - kvm->arch.last_tsc_nsec; if (vcpu->arch.virtual_tsc_khz) { @@ -2073,7 +2073,7 @@ u64 get_kvmclock_ns(struct kvm *kvm) spin_lock(&ka->pvclock_gtod_sync_lock); if (!ka->use_master_clock) { spin_unlock(&ka->pvclock_gtod_sync_lock); - return ktime_get_boot_ns() + ka->kvmclock_offset; + return ktime_get_boottime_ns() + ka->kvmclock_offset; } hv_clock.tsc_timestamp = ka->master_cycle_now; @@ -2089,7 +2089,7 @@ u64 get_kvmclock_ns(struct kvm *kvm) &hv_clock.tsc_to_system_mul); ret = __pvclock_read_cycles(&hv_clock, rdtsc()); } else - ret = ktime_get_boot_ns() + ka->kvmclock_offset; + ret = ktime_get_boottime_ns() + ka->kvmclock_offset; put_cpu(); @@ -2188,7 +2188,7 @@ static int kvm_guest_time_update(struct kvm_vcpu *v) } if (!use_master_clock) { host_tsc = rdtsc(); - kernel_ns = ktime_get_boot_ns(); + kernel_ns = ktime_get_boottime_ns(); } tsc_timestamp = kvm_read_l1_tsc(v, host_tsc); @@ -9018,7 +9018,7 @@ int kvm_arch_hardware_enable(void) * before any KVM threads can be running. Unfortunately, we can't * bring the TSCs fully up to date with real time, as we aren't yet far * enough into CPU bringup that we know how much real time has actually - * elapsed; our helper function, ktime_get_boot_ns() will be using boot + * elapsed; our helper function, ktime_get_boottime_ns() will be using boot * variables that haven't been updated yet. * * So we simply find the maximum observed TSC above, then record the @@ -9246,7 +9246,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) mutex_init(&kvm->arch.apic_map_lock); spin_lock_init(&kvm->arch.pvclock_gtod_sync_lock); - kvm->arch.kvmclock_offset = -ktime_get_boot_ns(); + kvm->arch.kvmclock_offset = -ktime_get_boottime_ns(); pvclock_update_vm_gtod_copy(kvm); kvm->arch.guest_can_read_msr_platform_info = true; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 083bd8114db1..dd6b4b0b5f30 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -837,7 +837,7 @@ static int kfd_ioctl_get_clock_counters(struct file *filep, /* No access to rdtsc. Using raw monotonic time */ args->cpu_clock_counter = ktime_get_raw_ns(); - args->system_clock_counter = ktime_get_boot_ns(); + args->system_clock_counter = ktime_get_boottime_ns(); /* Since the counter is in nano-seconds we use 1GHz frequency */ args->system_clock_freq = 1000000000; diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c index c8159205c77d..4e22b3c3e488 100644 --- a/drivers/iio/humidity/dht11.c +++ b/drivers/iio/humidity/dht11.c @@ -149,7 +149,7 @@ static int dht11_decode(struct dht11 *dht11, int offset) return -EIO; } - dht11->timestamp = ktime_get_boot_ns(); + dht11->timestamp = ktime_get_boottime_ns(); if (hum_int < 4) { /* DHT22: 100000 = (3*256+232)*100 */ dht11->temperature = (((temp_int & 0x7f) << 8) + temp_dec) * ((temp_int & 0x80) ? -100 : 100); @@ -177,7 +177,7 @@ static irqreturn_t dht11_handle_irq(int irq, void *data) /* TODO: Consider making the handler safe for IRQ sharing */ if (dht11->num_edges < DHT11_EDGES_PER_READ && dht11->num_edges >= 0) { - dht11->edges[dht11->num_edges].ts = ktime_get_boot_ns(); + dht11->edges[dht11->num_edges].ts = ktime_get_boottime_ns(); dht11->edges[dht11->num_edges++].value = gpio_get_value(dht11->gpio); @@ -196,7 +196,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev, int ret, timeres, offset; mutex_lock(&dht11->lock); - if (dht11->timestamp + DHT11_DATA_VALID_TIME < ktime_get_boot_ns()) { + if (dht11->timestamp + DHT11_DATA_VALID_TIME < ktime_get_boottime_ns()) { timeres = ktime_get_resolution_ns(); dev_dbg(dht11->dev, "current timeresolution: %dns\n", timeres); if (timeres > DHT11_MIN_TIMERES) { @@ -322,7 +322,7 @@ static int dht11_probe(struct platform_device *pdev) return -EINVAL; } - dht11->timestamp = ktime_get_boot_ns() - DHT11_DATA_VALID_TIME - 1; + dht11->timestamp = ktime_get_boottime_ns() - DHT11_DATA_VALID_TIME - 1; dht11->num_edges = -1; platform_set_drvdata(pdev, iio); diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index f5a4581302f4..16008f862d19 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -231,9 +231,9 @@ s64 iio_get_time_ns(const struct iio_dev *indio_dev) ktime_get_coarse_ts64(&tp); return timespec64_to_ns(&tp); case CLOCK_BOOTTIME: - return ktime_get_boot_ns(); + return ktime_get_boottime_ns(); case CLOCK_TAI: - return ktime_get_tai_ns(); + return ktime_get_clocktai_ns(); default: BUG(); } diff --git a/drivers/infiniband/hw/mlx4/alias_GUID.c b/drivers/infiniband/hw/mlx4/alias_GUID.c index 2a0b59a4b6eb..cca414ecfcd5 100644 --- a/drivers/infiniband/hw/mlx4/alias_GUID.c +++ b/drivers/infiniband/hw/mlx4/alias_GUID.c @@ -310,7 +310,7 @@ static void aliasguid_query_handler(int status, if (status) { pr_debug("(port: %d) failed: status = %d\n", cb_ctx->port, status); - rec->time_to_run = ktime_get_boot_ns() + 1 * NSEC_PER_SEC; + rec->time_to_run = ktime_get_boottime_ns() + 1 * NSEC_PER_SEC; goto out; } @@ -416,7 +416,7 @@ next_entry: be64_to_cpu((__force __be64)rec->guid_indexes), be64_to_cpu((__force __be64)applied_guid_indexes), be64_to_cpu((__force __be64)declined_guid_indexes)); - rec->time_to_run = ktime_get_boot_ns() + + rec->time_to_run = ktime_get_boottime_ns() + resched_delay_sec * NSEC_PER_SEC; } else { rec->status = MLX4_GUID_INFO_STATUS_SET; @@ -709,7 +709,7 @@ static int get_low_record_time_index(struct mlx4_ib_dev *dev, u8 port, } } if (resched_delay_sec) { - u64 curr_time = ktime_get_boot_ns(); + u64 curr_time = ktime_get_boottime_ns(); *resched_delay_sec = (low_record_time < curr_time) ? 0 : div_u64((low_record_time - curr_time), NSEC_PER_SEC); diff --git a/drivers/leds/trigger/ledtrig-activity.c b/drivers/leds/trigger/ledtrig-activity.c index bcbf41c90c30..0f130dd998b3 100644 --- a/drivers/leds/trigger/ledtrig-activity.c +++ b/drivers/leds/trigger/ledtrig-activity.c @@ -73,7 +73,7 @@ static void led_activity_function(struct timer_list *t) * down to 16us, ensuring we won't overflow 32-bit computations below * even up to 3k CPUs, while keeping divides cheap on smaller systems. */ - curr_boot = ktime_get_boot_ns() * cpus; + curr_boot = ktime_get_boottime_ns() * cpus; diff_boot = (curr_boot - activity_data->last_boot) >> 16; diff_used = (curr_used - activity_data->last_used) >> 16; activity_data->last_boot = curr_boot; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c index fec38a47696e..9f4b117db9d7 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c @@ -93,7 +93,7 @@ void iwl_mvm_ftm_restart(struct iwl_mvm *mvm) struct cfg80211_pmsr_result result = { .status = NL80211_PMSR_STATUS_FAILURE, .final = 1, - .host_time = ktime_get_boot_ns(), + .host_time = ktime_get_boottime_ns(), .type = NL80211_PMSR_TYPE_FTM, }; int i; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c index fbd3014e8b82..160b0db27103 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c @@ -555,7 +555,7 @@ void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi, if (unlikely(ieee80211_is_beacon(hdr->frame_control) || ieee80211_is_probe_resp(hdr->frame_control))) - rx_status->boottime_ns = ktime_get_boot_ns(); + rx_status->boottime_ns = ktime_get_boottime_ns(); /* Take a reference briefly to kick off a d0i3 entry delay so * we can handle bursts of RX packets without toggling the diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c index 1824566d08fc..64f950501287 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c @@ -1684,7 +1684,7 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, if (unlikely(ieee80211_is_beacon(hdr->frame_control) || ieee80211_is_probe_resp(hdr->frame_control))) - rx_status->boottime_ns = ktime_get_boot_ns(); + rx_status->boottime_ns = ktime_get_boottime_ns(); } if (iwl_mvm_create_skb(mvm, skb, hdr, len, crypt_len, rxb)) { diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c index b9914efc55c4..724a25ab32f2 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c @@ -1443,7 +1443,7 @@ void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime) } *gp2 = iwl_mvm_get_systime(mvm); - *boottime = ktime_get_boot_ns(); + *boottime = ktime_get_boottime_ns(); if (!ps_disabled) { mvm->ps_disabled = ps_disabled; diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 60ca13e0f15b..52ee165d6f1d 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -1274,7 +1274,7 @@ static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw, */ if (ieee80211_is_beacon(hdr->frame_control) || ieee80211_is_probe_resp(hdr->frame_control)) { - rx_status.boottime_ns = ktime_get_boot_ns(); + rx_status.boottime_ns = ktime_get_boottime_ns(); now = data->abs_bcn_ts; } else { now = mac80211_hwsim_get_tsf_raw(); diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index c9a485ecee7b..b74dc8bc9755 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -483,7 +483,7 @@ static int wlcore_fw_status(struct wl1271 *wl, struct wl_fw_status *status) } /* update the host-chipset time offset */ - wl->time_offset = (ktime_get_boot_ns() >> 10) - + wl->time_offset = (ktime_get_boottime_ns() >> 10) - (s64)(status->fw_localtime); wl->fw_fast_lnk_map = status->link_fast_bitmap; diff --git a/drivers/net/wireless/ti/wlcore/rx.c b/drivers/net/wireless/ti/wlcore/rx.c index d96bb602fae6..307fab21050b 100644 --- a/drivers/net/wireless/ti/wlcore/rx.c +++ b/drivers/net/wireless/ti/wlcore/rx.c @@ -93,7 +93,7 @@ static void wl1271_rx_status(struct wl1271 *wl, } if (beacon || probe_rsp) - status->boottime_ns = ktime_get_boot_ns(); + status->boottime_ns = ktime_get_boottime_ns(); if (beacon) wlcore_set_pending_regdomain_ch(wl, (u16)desc->channel, diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c index 057c6be330e7..90e56d4c3df3 100644 --- a/drivers/net/wireless/ti/wlcore/tx.c +++ b/drivers/net/wireless/ti/wlcore/tx.c @@ -273,7 +273,7 @@ static void wl1271_tx_fill_hdr(struct wl1271 *wl, struct wl12xx_vif *wlvif, } /* configure packet life time */ - hosttime = (ktime_get_boot_ns() >> 10); + hosttime = (ktime_get_boottime_ns() >> 10); desc->start_time = cpu_to_le32(hosttime - wl->time_offset); is_dummy = wl12xx_is_dummy_packet(wl, skb); diff --git a/drivers/net/wireless/virt_wifi.c b/drivers/net/wireless/virt_wifi.c index 606999f102eb..be92e1220284 100644 --- a/drivers/net/wireless/virt_wifi.c +++ b/drivers/net/wireless/virt_wifi.c @@ -172,7 +172,7 @@ static void virt_wifi_scan_result(struct work_struct *work) informed_bss = cfg80211_inform_bss(wiphy, &channel_5ghz, CFG80211_BSS_FTYPE_PRESP, fake_router_bssid, - ktime_get_boot_ns(), + ktime_get_boottime_ns(), WLAN_CAPABILITY_ESS, 0, (void *)&ssid, sizeof(ssid), DBM_TO_MBM(-50), GFP_KERNEL); diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h index a8ab0f143ac4..fd6123722ea8 100644 --- a/include/linux/timekeeping.h +++ b/include/linux/timekeeping.h @@ -131,12 +131,12 @@ static inline u64 ktime_get_real_ns(void) return ktime_to_ns(ktime_get_real()); } -static inline u64 ktime_get_boot_ns(void) +static inline u64 ktime_get_boottime_ns(void) { return ktime_to_ns(ktime_get_boottime()); } -static inline u64 ktime_get_tai_ns(void) +static inline u64 ktime_get_clocktai_ns(void) { return ktime_to_ns(ktime_get_clocktai()); } diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 87dae868707e..f8058e92f59d 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -2010,7 +2010,7 @@ enum cfg80211_signal_type { * received by the device (not just by the host, in case it was * buffered on the device) and be accurate to about 10ms. * If the frame isn't buffered, just passing the return value of - * ktime_get_boot_ns() is likely appropriate. + * ktime_get_boottime_ns() is likely appropriate. * @parent_tsf: the time at the start of reception of the first octet of the * timestamp field of the frame. The time is the TSF of the BSS specified * by %parent_bssid. diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index ef63d26622f2..96c8928b468b 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -1666,7 +1666,7 @@ static int bpf_prog_load(union bpf_attr *attr, union bpf_attr __user *uattr) if (err < 0) goto free_prog; - prog->aux->load_time = ktime_get_boot_ns(); + prog->aux->load_time = ktime_get_boottime_ns(); err = bpf_obj_name_cpy(prog->aux->name, attr->prog_name); if (err) goto free_prog; diff --git a/kernel/events/core.c b/kernel/events/core.c index abbd4b3b96c2..e2d014395fc6 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -10680,11 +10680,11 @@ static int perf_event_set_clock(struct perf_event *event, clockid_t clk_id) break; case CLOCK_BOOTTIME: - event->clock = &ktime_get_boot_ns; + event->clock = &ktime_get_boottime_ns; break; case CLOCK_TAI: - event->clock = &ktime_get_tai_ns; + event->clock = &ktime_get_clocktai_ns; break; default: diff --git a/kernel/fork.c b/kernel/fork.c index 75675b9bf6df..4722f1a320bf 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2139,7 +2139,7 @@ static __latent_entropy struct task_struct *copy_process( */ p->start_time = ktime_get_ns(); - p->real_start_time = ktime_get_boot_ns(); + p->real_start_time = ktime_get_boottime_ns(); /* * Make it visible to the rest of the system, but dont wake it up yet.