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Shivnandan Kumar 8d36694245 PM: QoS: Add check to make sure CPU freq is non-negative 
CPU frequency should never be negative.

If some client driver calls freq_qos_update_request with a
negative value which will be very high in absolute terms,
then frequency QoS sets max CPU freq at fmax as it considers
it's absolute value but it will add plist node with negative
priority.

plist node has priority from INT_MIN (highest) to INT_MAX(lowest).
Once priority is set as negative, another client will not be able
to reduce CPU frequency.

Adding check to make sure CPU freq is non-negative will fix
this problem.

Signed-off-by: Shivnandan Kumar <quic_kshivnan@quicinc.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-07-26 20:48:33 +02:00
..
bpf
bpf: Add flags arg to bpf_dynptr_read and bpf_dynptr_write APIs
2022-07-08 10:55:53 +02:00
cgroup
cgroup: Use separate src/dst nodes when preloading css_sets for migration
2022-06-16 09:37:02 -10:00
configs
x86/configs: Add x86 debugging Kconfig fragment plus docs
2022-04-06 19:56:29 +02:00
debug
Modules updates for v5.19-rc1
2022-05-26 17:13:43 -07:00
dma
dma-direct: use the correct size for dma_set_encrypted()
2022-06-23 15:26:59 +02:00
entry
* Fix syzkaller NULL pointer dereference
2022-06-08 09:16:31 -07:00
events
perf/core: Fix data race between perf_event_set_output() and perf_mmap_close()
2022-07-13 11:29:12 +02:00
futex
drm for 5.19-rc1
2022-05-25 16:18:27 -07:00
gcov
gcov: Remove compiler version check
2021-12-02 17:25:21 +09:00
irq
genirq: PM: Use runtime PM for chained interrupts
2022-06-09 15:58:13 +01:00
kcsan
linux-kselftest-kunit-5.19-rc1
2022-05-25 11:32:53 -07:00
livepatch
Livepatching changes for 5.19
2022-06-02 08:55:01 -07:00
locking
locking/lockdep: Use sched_clock() for random numbers
2022-06-13 10:29:57 +02:00
module
module: kallsyms: Ensure preemption in add_kallsyms() with PREEMPT_RT
2022-07-11 10:19:09 -07:00
power
PM: QoS: Add check to make sure CPU freq is non-negative
2022-07-26 20:48:33 +02:00
printk
printk: do not wait for consoles when suspended
2022-07-15 10:52:11 +02:00
rcu
Urgent RCU pull request for v5.19
2022-07-22 10:01:20 -07:00
sched
sched/deadline: Fix BUG_ON condition for deboosted tasks
2022-07-21 10:35:28 +02:00
time
fix race between exit_itimers() and /proc/pid/timers
2022-07-11 09:52:59 -07:00
trace
ftrace: Be more specific about arch impact when function tracer is enabled
2022-07-12 16:36:34 -04:00
.gitignore
…
acct.c
kernel/acct: move acct sysctls to its own file
2022-04-06 13:43:44 -07:00
async.c
Revert "module, async: async_synchronize_full() on module init iff async is used"
2022-02-03 11:20:34 -08:00
audit_fsnotify.c
fsnotify: make allow_dups a property of the group
2022-04-25 14:37:18 +02:00
audit_tree.c
audit: use fsnotify group lock helpers
2022-04-25 14:37:28 +02:00
audit_watch.c
fsnotify: pass flags argument to fsnotify_alloc_group()
2022-04-25 14:37:12 +02:00
audit.c
audit: improve audit queue handling when "audit=1" on cmdline
2022-01-25 13:22:51 -05:00
audit.h
audit: log AUDIT_TIME_* records only from rules
2022-02-22 13:51:40 -05:00
auditfilter.c
audit/stable-5.17 PR 20220110
2022-01-11 13:08:21 -08:00
auditsc.c
audit: free module name
2022-06-15 19:28:44 -04:00
backtracetest.c
…
bounds.c
…
capability.c
xfs: don't generate selinux audit messages for capability testing
2022-03-09 10:32:06 -08:00
cfi.c
cfi: Fix __cfi_slowpath_diag RCU usage with cpuidle
2022-06-13 09:18:46 -07:00
compat.c
…
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
Intel Trust Domain Extensions
2022-05-23 17:51:12 -07:00
crash_core.c
Not a lot of material this cycle. Many singleton patches against various
2022-05-27 11:22:03 -07:00
crash_dump.c
…
cred.c
x86: Mark __invalid_creds() __noreturn
2022-03-15 10:32:44 +01:00
delayacct.c
delayacct: track delays from write-protect copy
2022-06-01 15:55:25 -07:00
dma.c
…
exec_domain.c
…
exit.c
fix race between exit_itimers() and /proc/pid/timers
2022-07-11 09:52:59 -07:00
extable.c
lkdtm: Really write into kernel text in WRITE_KERN
2022-02-16 23:25:12 +11:00
fail_function.c
…
fork.c
This set of changes updates init and user mode helper tasks to be
2022-06-03 16:03:05 -07:00
freezer.c
…
gen_kheaders.sh
kheaders: Have cpio unconditionally replace files
2022-05-08 03:16:59 +09:00
groups.c
…
hung_task.c
Merge branch 'rework/kthreads' into for-linus
2022-06-23 19:11:28 +02:00
iomem.c
…
irq_work.c
irq_work: use kasan_record_aux_stack_noalloc() record callstack
2022-04-15 14:49:55 -07:00
jump_label.c
…
kallsyms.c
ftrace: Add ftrace_lookup_symbols function
2022-05-10 14:42:06 -07:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"
2022-03-31 10:36:55 +02:00
kcov.c
kcov: update pos before writing pc in trace function
2022-05-25 13:05:42 -07:00
kexec_core.c
Not a lot of material this cycle. Many singleton patches against various
2022-05-27 11:22:03 -07:00
kexec_elf.c
…
kexec_file.c
ima: force signature verification when CONFIG_KEXEC_SIG is configured
2022-07-13 10:13:41 -04:00
kexec_internal.h
…
kexec.c
…
kheaders.c
…
kmod.c
…
kprobes.c
tracing updates for 5.19:
2022-05-29 10:31:36 -07:00
ksysfs.c
kernel/ksysfs.c: use helper macro __ATTR_RW
2022-03-23 19:00:33 -07:00
kthread.c
kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal
2022-06-16 19:11:30 -07:00
latencytop.c
latencytop: move sysctl to its own file
2022-04-21 11:40:59 -07:00
Makefile
kernel: add platform_has() infrastructure
2022-06-06 08:06:00 +02:00
module_signature.c
…
notifier.c
notifier: Add blocking/atomic_notifier_chain_register_unique_prio()
2022-05-19 19:30:30 +02:00
nsproxy.c
…
padata.c
padata: replace cpumask_weight with cpumask_empty in padata.c
2022-01-31 11:21:46 +11:00
panic.c
Merge branch 'rework/kthreads' into for-linus
2022-06-23 19:11:28 +02:00
params.c
kobject: remove kset from struct kset_uevent_ops callbacks
2021-12-28 11:26:18 +01:00
pid_namespace.c
kernel: pid_namespace: use NULL instead of using plain integer as pointer
2022-04-29 14:38:00 -07:00
pid.c
…
platform-feature.c
kernel: add platform_has() infrastructure
2022-06-06 08:06:00 +02:00
profile.c
exit: Remove profile_handoff_task
2022-01-08 12:43:57 -06:00
ptrace.c
ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()
2022-07-09 11:06:19 -07:00
range.c
…
reboot.c
Merge branch 'rework/kthreads' into for-linus
2022-06-23 19:11:28 +02:00
regset.c
…
relay.c
relay: remove redundant assignment to pointer buf
2022-05-12 20:38:37 -07:00
resource_kunit.c
…
resource.c
kernel/resource: fix kfree() of bootmem memory again
2022-03-23 19:00:35 -07:00
rseq.c
rseq: Remove broken uapi field layout on 32-bit little endian
2022-02-02 13:11:34 +01:00
scftorture.c
scftorture: Fix distribution of short handler delays
2022-04-11 17:07:29 -07:00
scs.c
kasan, vmalloc: only tag normal vmalloc allocations
2022-03-24 19:06:48 -07:00
seccomp.c
seccomp: Add wait_killable semantic to seccomp user notifier
2022-05-03 14:11:58 -07:00
signal.c
signal handling: don't use BUG_ON() for debugging
2022-07-07 09:53:43 -07:00
smp.c
Scheduler changes in this cycle were:
2022-05-24 11:11:13 -07:00
smpboot.c
cpu/hotplug: Allow the CPU in CPU_UP_PREPARE state to be brought up again.
2022-04-12 14:13:01 +02:00
smpboot.h
…
softirq.c
smp: Make softirq handling RT safe in flush_smp_call_function_queue()
2022-05-01 10:03:43 +02:00
stackleak.c
stackleak: add on/off stack variants
2022-05-08 01:33:09 -07:00
stacktrace.c
uaccess: remove CONFIG_SET_FS
2022-02-25 09:36:06 +01:00
static_call_inline.c
static_call: Don't make __static_call_return0 static
2022-04-05 09:59:38 +02:00
static_call.c
static_call: Don't make __static_call_return0 static
2022-04-05 09:59:38 +02:00
stop_machine.c
Scheduler changes in this cycle were:
2022-05-24 11:11:13 -07:00
sys_ni.c
mm/mempolicy: wire up syscall set_mempolicy_home_node
2022-01-15 16:30:30 +02:00
sys.c
arm64/sme: Implement vector length configuration prctl()s
2022-04-22 18:50:54 +01:00
sysctl-test.c
…
sysctl.c
Only one fix for sysctl
2022-07-15 09:52:35 -07:00
task_work.c
task_work: allow TWA_SIGNAL without a rescheduling IPI
2022-04-30 08:39:32 -06:00
taskstats.c
kernel: make taskstats available from all net namespaces
2022-04-29 14:38:03 -07:00
torture.c
torture: Wake up kthreads after storing task_struct pointer
2022-02-01 17:24:39 -08:00
tracepoint.c
…
tsacct.c
taskstats: version 12 with thread group and exe info
2022-04-29 14:38:03 -07:00
ucount.c
ucounts: Handle wrapping in is_ucounts_overlimit
2022-02-17 09:11:57 -06:00
uid16.c
…
uid16.h
…
umh.c
kthread: Don't allocate kthread_struct for init and umh
2022-05-06 14:49:44 -05:00
up.c
…
user_namespace.c
ucounts: Fix systemd LimitNPROC with private users regression
2022-02-25 10:40:14 -06:00
user-return-notifier.c
…
user.c
…
usermode_driver.c
blob_to_mnt(): kern_unmount() is needed to undo kern_mount()
2022-05-19 23:25:47 -04:00
utsname_sysctl.c
…
utsname.c
…
watch_queue.c
watch-queue: remove spurious double semicolon
2022-07-21 10:30:14 -07:00
watchdog_hld.c
Revert "printk: add functions to prefer direct printing"
2022-06-23 18:41:40 +02:00
watchdog.c
Merge branch 'rework/kthreads' into for-linus
2022-06-23 19:11:28 +02:00
workqueue_internal.h
…
workqueue.c
workqueue: Wrap flush_workqueue() using a macro
2022-06-07 07:07:14 -10:00