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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-10 09:10:28 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-10 09:10:28 -0700 |
commit | 30c999937f69abf935b0228b8411713737377d9e (patch) | |
tree | 1ae97b8df4d61e83bdba2388b2254bb407418385 /drivers/acpi/x86 | |
parent | 493ffd6605b2d3d4dc7008ab927dba319f36671f (diff) | |
parent | fdf756f7127185eeffe00e918e66dfee797f3625 (diff) | |
download | linux-30c999937f69abf935b0228b8411713737377d9e.tar.gz linux-30c999937f69abf935b0228b8411713737377d9e.tar.bz2 linux-30c999937f69abf935b0228b8411713737377d9e.zip |
Merge tag 'sched-core-2022-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Debuggability:
- Change most occurances of BUG_ON() to WARN_ON_ONCE()
- Reorganize & fix TASK_ state comparisons, turn it into a bitmap
- Update/fix misc scheduler debugging facilities
Load-balancing & regular scheduling:
- Improve the behavior of the scheduler in presence of lot of
SCHED_IDLE tasks - in particular they should not impact other
scheduling classes.
- Optimize task load tracking, cleanups & fixes
- Clean up & simplify misc load-balancing code
Freezer:
- Rewrite the core freezer to behave better wrt thawing and be
simpler in general, by replacing PF_FROZEN with TASK_FROZEN &
fixing/adjusting all the fallout.
Deadline scheduler:
- Fix the DL capacity-aware code
- Factor out dl_task_is_earliest_deadline() &
replenish_dl_new_period()
- Relax/optimize locking in task_non_contending()
Cleanups:
- Factor out the update_current_exec_runtime() helper
- Various cleanups, simplifications"
* tag 'sched-core-2022-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
sched: Fix more TASK_state comparisons
sched: Fix TASK_state comparisons
sched/fair: Move call to list_last_entry() in detach_tasks
sched/fair: Cleanup loop_max and loop_break
sched/fair: Make sure to try to detach at least one movable task
sched: Show PF_flag holes
freezer,sched: Rewrite core freezer logic
sched: Widen TAKS_state literals
sched/wait: Add wait_event_state()
sched/completion: Add wait_for_completion_state()
sched: Add TASK_ANY for wait_task_inactive()
sched: Change wait_task_inactive()s match_state
freezer,umh: Clean up freezer/initrd interaction
freezer: Have {,un}lock_system_sleep() save/restore flags
sched: Rename task_running() to task_on_cpu()
sched/fair: Cleanup for SIS_PROP
sched/fair: Default to false in test_idle_cores()
sched/fair: Remove useless check in select_idle_core()
sched/fair: Avoid double search on same cpu
sched/fair: Remove redundant check in select_idle_smt()
...
Diffstat (limited to 'drivers/acpi/x86')
-rw-r--r-- | drivers/acpi/x86/s2idle.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c index 42f249070c09..5350c73564b6 100644 --- a/drivers/acpi/x86/s2idle.c +++ b/drivers/acpi/x86/s2idle.c @@ -654,12 +654,14 @@ void __init acpi_s2idle_setup(void) int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg) { + unsigned int sleep_flags; + if (!lps0_device_handle || sleep_no_lps0) return -ENODEV; - lock_system_sleep(); + sleep_flags = lock_system_sleep(); list_add(&arg->list_node, &lps0_s2idle_devops_head); - unlock_system_sleep(); + unlock_system_sleep(sleep_flags); return 0; } @@ -667,12 +669,14 @@ EXPORT_SYMBOL_GPL(acpi_register_lps0_dev); void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg) { + unsigned int sleep_flags; + if (!lps0_device_handle || sleep_no_lps0) return; - lock_system_sleep(); + sleep_flags = lock_system_sleep(); list_del(&arg->list_node); - unlock_system_sleep(); + unlock_system_sleep(sleep_flags); } EXPORT_SYMBOL_GPL(acpi_unregister_lps0_dev); |