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Rafael J. Wysocki a61dec7447 cpufreq: schedutil: Avoid missing updates for one-CPU policies 
Commit 152db033d775 (schedutil: Allow cpufreq requests to be made
even when kthread kicked) made changes to prevent utilization updates
from being discarded during processing a previous request, but it
left a small window in which that still can happen in the one-CPU
policy case.  Namely, updates coming in after setting work_in_progress
in sugov_update_commit() and clearing it in sugov_work() will still
be dropped due to the work_in_progress check in sugov_update_single().

To close that window, rearrange the code so as to acquire the update
lock around the deferred update branch in sugov_update_single()
and drop the work_in_progress check from it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Juri Lelli <juri.lelli@redhat.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
2018-05-24 10:21:18 +02:00
..
bpf
bpf: use array_index_nospec in find_prog_type
2018-05-03 19:29:35 -07:00
cgroup
Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2018-04-03 18:00:13 -07:00
configs
KVM changes for 4.16
2018-02-10 13:16:35 -08:00
debug
* Fix 2032 time access issues and new compiler warnings
2018-04-12 10:21:19 -07:00
events
perf/core: Fix possible Spectre-v1 indexing for ->aux_pages[]
2018-05-05 08:37:27 +02:00
gcov
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
irq
genirq/affinity: Spread irq vectors among present CPUs as far as possible
2018-04-06 12:19:51 +02:00
livepatch
livepatch: Allow to call a custom callback when freeing shadow variables
2018-04-17 13:42:48 +02:00
locking
locking/rwsem: Add DEBUG_RWSEMS to look for lock/unlock mismatches
2018-03-31 07:30:50 +02:00
power
PM / QoS: mark expected switch fall-throughs
2018-04-09 13:49:40 +02:00
printk
New features:
2018-04-10 11:27:30 -07:00
rcu
Merge branches 'fixes.2018.02.23a', 'srcu.2018.02.20a' and 'torture.2018.02.20a' into HEAD
2018-02-23 15:15:41 -08:00
sched
cpufreq: schedutil: Avoid missing updates for one-CPU policies
2018-05-24 10:21:18 +02:00
time
clocksource: Rework stale comment
2018-05-02 16:10:41 +02:00
trace
tracing: Fix regex_match_front() to not over compare the test string
2018-05-11 10:56:42 -04:00
.gitignore
…
acct.c
kernel/acct.c: fix the acct->needcheck check in check_free_space()
2018-01-04 16:45:09 -08:00
async.c
kernel/async.c: revert "async: simplify lowest_in_progress()"
2018-02-06 18:32:44 -08:00
audit_fsnotify.c
…
audit_tree.c
audit: track the owner of the command mutex ourselves
2018-02-23 11:22:22 -05:00
audit_watch.c
…
audit.c
audit/stable-4.17 PR 20180403
2018-04-06 15:01:25 -07:00
audit.h
audit: track the owner of the command mutex ourselves
2018-02-23 11:22:22 -05:00
auditfilter.c
audit: deprecate the AUDIT_FILTER_ENTRY filter
2018-02-15 14:36:29 -05:00
auditsc.c
audit: bail before bug check if audit disabled
2018-02-15 14:40:25 -05:00
backtracetest.c
…
bounds.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
capability.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
compat.c
compat: fix 4-byte infoleak via uninitialized struct field
2018-05-10 17:51:58 -07:00
configs.c
…
context_tracking.c
…
cpu_pm.c
…
cpu.c
cpu/hotplug: Fix unused function warning
2018-03-15 20:34:40 +01:00
crash_core.c
kexec: export PG_swapbacked to VMCOREINFO
2018-04-13 17:10:27 -07:00
crash_dump.c
…
cred.c
…
delayacct.c
delayacct: Account blkio completion on the correct task
2018-01-16 03:29:36 +01:00
dma.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
elfcore.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
exec_domain.c
get rid of pointless includes of fs_struct.h
2018-02-22 14:28:50 -05:00
exit.c
kernel: use kernel_wait4() instead of sys_wait4()
2018-04-02 20:14:51 +02:00
extable.c
extable: Make init_kernel_text() global
2018-02-21 16:54:06 +01:00
fail_function.c
error-injection: Fix to prohibit jump optimization
2018-03-12 16:16:00 +01:00
fork.c
fork: unconditionally clear stack on fork
2018-04-20 17:18:35 -07:00
freezer.c
…
futex_compat.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
futex.c
pids: introduce find_get_task_by_vpid() helper
2018-02-06 18:32:46 -08:00
groups.c
kernel: make groups_sort calling a responsibility group_info allocators
2017-12-14 16:00:49 -08:00
hung_task.c
…
irq_work.c
irq/work: Improve the flag definitions
2018-01-08 19:43:15 +01:00
jump_label.c
jump_label: Disable jump labels in __exit code
2018-03-20 08:57:17 +01:00
kallsyms.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
2018-02-01 13:36:15 -08:00
kcmp.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: detect double association with a single task
2018-02-06 18:32:46 -08:00
kexec_core.c
…
kexec_file.c
kernel/kexec_file.c: allow archs to set purgatory load address
2018-04-13 17:10:28 -07:00
kexec_internal.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
kexec.c
kexec: call do_kexec_load() in compat syscall directly
2018-04-02 20:15:01 +02:00
kmod.c
kmod: move #ifdef CONFIG_MODULES wrapper to Makefile
2017-09-08 18:26:51 -07:00
kprobes.c
kprobes: Fix random address output of blacklist file
2018-04-25 10:27:56 -04:00
ksysfs.c
…
kthread.c
kthread, sched/wait: Fix kthread_parkme() completion issue
2018-05-03 07:38:05 +02:00
latencytop.c
…
Makefile
error-injection: Support fault injection framework
2018-01-12 17:33:38 -08:00
memremap.c
kernel/memremap: Remove stale devres_free() call
2018-03-06 10:58:54 -08:00
module_signing.c
…
module-internal.h
…
module.c
init: fix false positives in W+X checking
2018-05-11 17:28:45 -07:00
notifier.c
…
nsproxy.c
…
padata.c
padata: add SPDX identifier
2018-01-05 18:43:00 +11:00
panic.c
taint: add taint for randstruct
2018-04-11 10:28:35 -07:00
params.c
kernel/params.c: downgrade warning for unsafe parameters
2018-04-11 10:28:37 -07:00
pid_namespace.c
Merge branch 'userns-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2018-04-03 19:15:32 -07:00
pid.c
xarray: add the xa_lock to the radix_tree_root
2018-04-11 10:28:39 -07:00
profile.c
…
ptrace.c
pids: introduce find_get_task_by_vpid() helper
2018-02-06 18:32:46 -08:00
range.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
reboot.c
kernel/reboot.c: add devm_register_reboot_notifier()
2017-11-17 16:10:04 -08:00
relay.c
kernel/relay.c: limit kmalloc size to KMALLOC_MAX_SIZE
2018-02-21 15:35:43 -08:00
resource.c
resource: fix integer overflow at reallocation
2018-04-13 17:10:27 -07:00
seccomp.c
- Fix seccomp GET_METADATA to deal with field sizes correctly (Tycho Andersen)
2018-02-22 10:50:24 -08:00
signal.c
sched/core: Introduce set_special_state()
2018-05-04 07:54:54 +02:00
smp.c
smp/core: Use lockdep to assert IRQs are disabled/enabled
2017-11-08 11:13:50 +01:00
smpboot.c
watchdog/core, powerpc: Lock cpus across reconfiguration
2017-10-04 10:53:54 +02:00
smpboot.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
softirq.c
softirq: Consolidate common code in tasklet_[hi]_action()
2018-03-09 11:50:55 +01:00
stacktrace.c
…
stop_machine.c
stop_machine, sched: Fix migrate_swap() vs. active_balance() deadlock
2018-05-03 07:38:03 +02:00
sys_ni.c
syscalls/core: Prepare CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y for compat syscalls
2018-04-05 16:59:38 +02:00
sys.c
kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid()
2018-04-02 20:16:06 +02:00
sysctl_binary.c
staging: irda: remove remaining remants of irda code removal
2018-04-16 11:26:49 +02:00
sysctl.c
kernel/sysctl.c: add kdoc comments to do_proc_do{u}intvec_minmax_conv_param
2018-04-11 10:28:38 -07:00
task_work.c
locking/barriers: Convert users of lockless_dereference() to READ_ONCE()
2017-12-17 13:57:15 +01:00
taskstats.c
pids: introduce find_get_task_by_vpid() helper
2018-02-06 18:32:46 -08:00
test_kprobes.c
kprobes: Disable the jprobes test code
2017-10-20 11:02:54 +02:00
torture.c
torture: Save a line in stutter_wait(): while -> for
2017-12-11 09:18:30 -08:00
tracepoint.c
tracepoint: Do not warn on ENOMEM
2018-04-30 12:09:56 -04:00
tsacct.c
…
ucount.c
headers: untangle kmemleak.h from mm.h
2018-04-05 21:36:27 -07:00
uid16.c
fs: add do_fchownat(), ksys_fchown() helpers and ksys_{,l}chown() wrappers
2018-04-02 20:15:59 +02:00
uid16.h
kernel: provide ksys_*() wrappers for syscalls called by kernel/uid16.c
2018-04-02 20:15:30 +02:00
umh.c
kernel: use kernel_wait4() instead of sys_wait4()
2018-04-02 20:14:51 +02:00
up.c
smp: Avoid using two cache lines for struct call_single_data
2017-08-29 15:14:38 +02:00
user_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2017-11-16 12:20:15 -08:00
user-return-notifier.c
…
user.c
efivarfs: Limit the rate for non-root to read files
2018-02-22 10:21:02 -08:00
utsname_sysctl.c
…
utsname.c
uts: create "struct uts_namespace" from kmem_cache
2018-04-11 10:28:35 -07:00
watchdog_hld.c
Merge branch 'linus' into core/urgent, to pick up dependent commits
2017-11-04 08:53:04 +01:00
watchdog.c
Merge branch 'linus' into sched/core, to pick up fixes
2017-11-08 10:17:15 +01:00
workqueue_internal.h
Merge branch 'for-4.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2017-11-06 12:26:49 -08:00
workqueue.c
Merge branch 'for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2018-04-03 18:00:13 -07:00