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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-05-02 13:45:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-05-02 13:45:30 -0700 |
| commit | 743f05732f49bacd196306de87864aa074492026 (patch) | |
| tree | 6491d2ceb7a5bdb2583ca1baf5205a9de94d7e65 | |
| parent | f66ed1ebbfde37631fba289f7c399eaa70632abf (diff) | |
| parent | a53839963ee22470a716de665bca39d2dae63c27 (diff) | |
| download | lwn-743f05732f49bacd196306de87864aa074492026.tar.gz lwn-743f05732f49bacd196306de87864aa074492026.zip | |
Merge tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
- prevent the intel_pstate driver from printing excessive diagnostic
messages in some cases (Chris Wilson)
- make the hibernation restore kernel freeze kernel threads as well as
user space tasks (Dexuan Cui)
- fix the ACPI device PM disagnostic messages to include the correct
power state name (Kai-Heng Feng).
* tag 'pm-5.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: ACPI: Output correct message on target power state
PM: hibernate: Freeze kernel threads in software_resume()
cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once
| -rw-r--r-- | drivers/acpi/device_pm.c | 4 | ||||
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 2 | ||||
| -rw-r--r-- | kernel/power/hibernate.c | 7 |
3 files changed, 10 insertions, 3 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index b2263ec67b43..5832bc10aca8 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -273,13 +273,13 @@ int acpi_device_set_power(struct acpi_device *device, int state) end: if (result) { dev_warn(&device->dev, "Failed to change power state to %s\n", - acpi_power_state_string(state)); + acpi_power_state_string(target_state)); } else { device->power.state = target_state; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] transitioned to %s\n", device->pnp.bus_id, - acpi_power_state_string(state))); + acpi_power_state_string(target_state))); } return result; diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 4d1e25d1ced1..4d3429b2058f 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -1059,7 +1059,7 @@ static ssize_t store_no_turbo(struct kobject *a, struct kobj_attribute *b, update_turbo_state(); if (global.turbo_disabled) { - pr_warn("Turbo disabled by BIOS or unavailable on processor\n"); + pr_notice_once("Turbo disabled by BIOS or unavailable on processor\n"); mutex_unlock(&intel_pstate_limits_lock); mutex_unlock(&intel_pstate_driver_lock); return -EPERM; diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 86aba8706b16..30bd28d1d418 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -898,6 +898,13 @@ static int software_resume(void) error = freeze_processes(); if (error) goto Close_Finish; + + error = freeze_kernel_threads(); + if (error) { + thaw_processes(); + goto Close_Finish; + } + error = load_image_and_restore(); thaw_processes(); Finish: |