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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-26 12:14:50 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-26 12:14:50 -0800 |
| commit | 0ce629b15d3c44b2faf6d0cf5122d7fae5ba89bb (patch) | |
| tree | 6cd5f7ea2ee98be94a7fa5926ef800d0138e79be /kernel | |
| parent | 925c94371c5532659f8eb5bcf3b71f78622e4f68 (diff) | |
| parent | 7803516dbe26518115408d53a500ccb4d6a7d1c7 (diff) | |
Merge tag 'pm-5.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These address three issues in the intel_pstate driver and fix two
problems related to hibernation.
Specifics:
- Make intel_pstate work correctly on Ice Lake server systems with
out-of-band performance control enabled (Adamos Ttofari).
- Fix EPP handling in intel_pstate during CPU offline and online in
the active mode (Rafael Wysocki).
- Make intel_pstate support ITMT on asymmetric systems with
overclocking enabled (Srinivas Pandruvada).
- Fix hibernation image saving when using the user space interface
based on the snapshot special device file (Evan Green).
- Make the hibernation code release the snapshot block device using
the same mode that was used when acquiring it (Thomas Zeitlhofer)"
* tag 'pm-5.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: hibernate: Fix snapshot partial write lengths
PM: hibernate: use correct mode for swsusp_close()
cpufreq: intel_pstate: ITMT support for overclocked system
cpufreq: intel_pstate: Fix active mode offline/online EPP handling
cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/power/hibernate.c | 6 | ||||
| -rw-r--r-- | kernel/power/user.c | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 9ed9b744876c..e6af502c2fd7 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -693,7 +693,7 @@ static int load_image_and_restore(void) goto Unlock; error = swsusp_read(&flags); - swsusp_close(FMODE_READ); + swsusp_close(FMODE_READ | FMODE_EXCL); if (!error) error = hibernation_restore(flags & SF_PLATFORM_MODE); @@ -983,7 +983,7 @@ static int software_resume(void) /* The snapshot device should not be opened while we're running */ if (!hibernate_acquire()) { error = -EBUSY; - swsusp_close(FMODE_READ); + swsusp_close(FMODE_READ | FMODE_EXCL); goto Unlock; } @@ -1018,7 +1018,7 @@ static int software_resume(void) pm_pr_dbg("Hibernation image not present or could not be loaded.\n"); return error; Close_Finish: - swsusp_close(FMODE_READ); + swsusp_close(FMODE_READ | FMODE_EXCL); goto Finish; } diff --git a/kernel/power/user.c b/kernel/power/user.c index 740723bb3885..ad241b4ff64c 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -177,7 +177,7 @@ static ssize_t snapshot_write(struct file *filp, const char __user *buf, if (res <= 0) goto unlock; } else { - res = PAGE_SIZE - pg_offp; + res = PAGE_SIZE; } if (!data_of(data->handle)) { |