Evolution-X-Devices/kernel_xiaomi_raphael
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kernel_xiaomi_raphael/kernel
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Peter Zijlstra 880c8ae64d sched/swait: Switch to full exclusive mode 
Linus noted that swait basically implements exclusive mode -- because
swake_up() only wakes a single waiter. And because of that it should
take care to properly deal with the interruptible case.

In short, the problem is that swake_up() can race with a signal. In
this this case it is possible the swake_up() 'wakes' the waiter that
is already on the way out because it just got a signal and the wakeup
gets lost.

The normal wait code is very careful and avoids this situation, make
sure we do too.

Copy the exact exclusive semantics from wait.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: bigeasy@linutronix.de
Cc: oleg@redhat.com
Cc: paulmck@linux.vnet.ibm.com
Cc: pbonzini@redhat.com
Link: https://lkml.kernel.org/r/20180612083909.209762413@infradead.org
2022-09-22 17:33:18 +03:00
..
bpf
Merge remote-tracking branch 'android-stable/android-4.14-stable' into 12.1
2022-09-14 19:56:07 +08:00
cgroup
uclamp_assist: Tune parameters
2022-09-22 17:33:18 +03:00
configs
…
debug
Merge 4.14.223 into android-4.14-stable
2021-03-03 18:58:56 +01:00
events
Merge remote-tracking branch 'android-stable/android-4.14-stable' into 12.1
2022-09-14 19:56:07 +08:00
gcov
Merge 4.14.199 into android-4.14-stable
2020-09-24 12:45:16 +02:00
irq
treewide: extend f09f56f893a4
2022-07-18 06:38:16 +00:00
livepatch
rcu: Squash backport from v5.4
2022-01-22 14:28:43 +00:00
locking
rtmutex: Handle non enqueued waiters gracefully
2022-04-28 07:14:51 +00:00
power
Merge remote-tracking branch 'android-stable/android-4.14-stable' into 12.1
2022-09-14 19:56:16 +08:00
printk
treewide: remove Ofast
2022-05-27 08:51:18 +00:00
rcu
rcu/update: ensure rcu expedited cannot be changed
2022-06-27 14:30:56 +00:00
sched
sched/swait: Switch to full exclusive mode
2022-09-22 17:33:18 +03:00
time
Merge remote-tracking branch 'android-stable/android-4.14-stable' into dev-base-up
2022-07-08 09:13:29 +00:00
trace
kernel: sched: Provide a pointer to the valid CPU mask
2022-09-22 17:33:17 +03:00
.gitignore
…
acct.c
locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()
2022-04-11 08:52:28 +00:00
async.c
Merge branch 'android-4.14-stable' of https://android.googlesource.com/kernel/common into dev/12.0
2022-03-11 09:35:52 +00:00
audit_fsnotify.c
Merge remote-tracking branch 'android-stable/android-4.14-stable' into 12.1
2022-09-14 19:56:21 +08:00
audit_tree.c
…
audit_watch.c
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:12:33 +02:00
audit.c
audit: improve audit queue handling when "audit=1" on cmdline
2022-02-08 18:16:28 +01:00
audit.h
audit: fix a net reference leak in audit_list_rules_send()
2020-06-20 10:25:10 +02:00
auditfilter.c
sm8150: squashed commit for code-quality fixes using gcc-9.3.0 with -O3
2021-04-12 07:17:55 +00:00
auditsc.c
…
backtracetest.c
…
bounds.c
FROMLIST: mm: multi-gen LRU: minimal implementation
2022-06-27 14:32:38 +00:00
capability.c
…
cfi.c
ANDROID: cfi: remove unnecessary <asm/memory.h> include
2020-04-30 10:08:09 -07:00
compat.c
sched: Improve the scheduler
2022-04-18 11:35:55 +00:00
configs.c
…
context_tracking.c
…
cpu_pm.c
Merge android-4.14-stable.190 (d2d05bc) into msm-4.14
2020-09-06 01:12:33 +05:30
cpu.c
Merge remote-tracking branch 'android-stable/android-4.14-stable' into dev-base-up
2022-07-08 09:13:29 +00:00
crash_core.c
…
crash_dump.c
…
cred.c
…
delayacct.c
…
dma.c
…
exec_domain.c
…
exit.c
FROMLIST: mm: multi-gen LRU: support page table walks
2022-06-27 14:32:38 +00:00
extable.c
extable: Make init_kernel_text() global
2021-07-19 08:19:56 +00:00
fork.c
kernel: sched: Provide a pointer to the valid CPU mask
2022-09-22 17:33:17 +03:00
freezer.c
…
futex.c
futex: use hrtimer_init_sleeper_on_stack in futex_setup_timer
2022-04-11 07:23:25 +00:00
gen_kheaders.sh
kheaders: include only headers into kheaders_data.tar.xz
2020-07-12 21:32:07 -07:00
groups.c
…
hung_task.c
…
irq_work.c
…
jump_label.c
jump_label: Fix jump_label_text_reserved() vs __init
2022-04-07 07:38:43 +00:00
kallsyms.c
…
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/rwsem: Remove rwsem-spinlock.c & use rwsem-xadd.c for all archs
2022-04-03 15:29:08 +00:00
Kconfig.preempt
…
kcov.c
…
kexec_core.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2021-08-16 12:59:17 +00:00
kexec_file.c
Merge remote-tracking branch 'android-stable/android-4.14-stable' into dev-base
2022-07-08 09:16:54 +00:00
kexec_internal.h
…
kexec.c
…
kheaders.c
…
kmod.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2021-08-16 12:59:17 +00:00
kprobes.c
Merge remote-tracking branch 'android-stable/android-4.14-stable' into 12.1
2022-09-14 19:56:21 +08:00
ksysfs.c
…
kthread.c
kthread: use buffer from the stack space
2021-10-20 22:09:20 +00:00
latencytop.c
…
Makefile
treewide: remove Ofast
2022-05-27 08:51:18 +00:00
memremap.c
BACKPORT: mm: remove superfluous __ClearPageActive()
2022-06-27 14:32:38 +00:00
module_signing.c
…
module-internal.h
…
module.c
Merge branch 'android-4.14-stable' of https://android.googlesource.com/kernel/common into dev/12.0
2022-03-11 09:35:52 +00:00
notifier.c
…
nsproxy.c
…
padata.c
padata: purge get_cpu and reorder_via_wq from padata_do_serial
2020-05-27 16:43:05 +02:00
panic.c
…
params.c
…
pid_namespace.c
memcg: enable accounting for pids in nested pid namespaces
2021-09-22 11:45:32 +02:00
pid.c
…
profile.c
Merge remote-tracking branch 'android-stable/android-4.14-stable' into 12.1
2022-09-14 19:56:16 +08:00
ptrace.c
Merge remote-tracking branch 'android-stable/android-4.14-stable' into dev-base
2022-06-29 08:06:55 +00:00
range.c
…
reboot.c
reboot: fix overflow parsing reboot cpu number
2020-11-18 18:28:02 +01:00
relay.c
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:29:54 +02:00
resource.c
…
scs.c
ANDROID: scs: fix recursive spinlock in scs_check_usage
2020-06-02 16:13:43 +00:00
seccomp.c
seccomp: Invalidate seccomp mode to catch death failures
2022-02-16 12:44:52 +01:00
signal.c
Merge remote-tracking branch 'android-stable/android-4.14-stable' into dev-base
2022-07-25 07:09:46 +00:00
smp.c
smp: Process pending softirqs in flush_smp_call_function_from_idle()
2022-07-19 06:39:34 +00:00
smpboot.c
kthread: Extract KTHREAD_IS_PER_CPU
2021-02-07 14:47:41 +01:00
smpboot.h
…
softirq.c
softirq: Remove tasklet_hrtimer
2022-04-28 07:14:51 +00:00
stacktrace.c
…
stop_machine.c
…
sys_ni.c
…
sys.c
Merge branch 'android11-base' of github.com:UtsavBalar1231/kernel_xiaomi_raphael into 11.0
2021-09-30 06:40:43 +00:00
sysctl_binary.c
…
sysctl.c
Revert "Revert "sched: separate capacity margin for boosted tasks""
2022-09-22 17:33:17 +03:00
task_work.c
…
taskstats.c
taskstats: extended taskstats2 with acct fields
2020-06-17 12:53:11 +05:30
test_kprobes.c
…
torture.c
rcu: Squash backport from v5.4
2022-01-22 14:28:43 +00:00
tracepoint.c
rcu: Squash backport from v5.4
2022-01-22 14:28:43 +00:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2022-02-23 11:57:34 +01:00
ucount.c
…
uid16.c
…
umh.c
usermodehelper: reset umask to default before executing user process
2020-10-14 09:51:10 +02:00
up.c
smp: Fix smp_call_function_single_async prototype
2021-05-22 10:57:35 +02:00
user_namespace.c
locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()
2022-04-11 08:52:28 +00:00
user-return-notifier.c
…
user.c
…
utsname_sysctl.c
…
utsname.c
…
watchdog_hld.c
…
watchdog.c
Merge android-4.14-stable.180 (816f245) into msm-4.14
2020-08-05 11:41:56 +05:30
workqueue_internal.h
…
workqueue.c
workqueue: Use lockdep to assert IRQs are disabled/enabled
2022-04-11 07:23:25 +00:00