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Thomas Gleixner b45696340f futex: Sanitize exit state handling 
commit 4a8e991b91aca9e20705d434677ac013974e0e30 upstream

Instead of having a smp_mb() and an empty lock/unlock of task::pi_lock move
the state setting into to the lock section.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191106224556.645603214@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-30 13:32:12 +01:00
..
bpf
bpf: Fix a rcu warning for bpffs map pretty-print
2020-10-01 13:14:52 +02:00
cgroup
cgroup: add missing skcd->no_refcnt check in cgroup_sk_clone()
2020-08-19 08:14:47 +02:00
configs
kconfig: tinyconfig: remove stale stack protector fixups
2018-06-15 07:15:28 +09:00
debug
kgdb: Make "kgdbcon" work properly with "kgdb_earlycon"
2020-11-05 11:08:41 +01:00
dma
swiotlb: fix "x86: Don't panic if can not alloc buffer for swiotlb"
2020-11-18 19:18:51 +01:00
events
perf/core: Fix race in the perf_mmap_close() function
2020-11-18 19:18:52 +01:00
gcov
gcov: add support for GCC 10.1
2020-09-17 13:45:31 +02:00
irq
genirq/irqdomain: Don't try to free an interrupt that has no mapping
2020-12-30 11:25:58 +01:00
livepatch
livepatch: Nullify obj->mod in klp_module_coming()'s error path
2019-10-07 18:57:10 +02:00
locking
locking/lockdep: Fix overflow in presentation of average lock-time
2020-09-03 11:24:21 +02:00
power
PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
2020-10-30 10:38:28 +01:00
printk
printk: handle blank console arguments passed in.
2020-10-01 13:14:45 +02:00
rcu
rcu: Avoid data-race in rcu_gp_fqs_check_wake()
2020-02-11 04:33:55 -08:00
sched
sched: Reenable interrupts in do_sched_yield()
2020-12-30 11:25:50 +01:00
time
random32: make prandom_u32() output unpredictable
2020-11-18 19:18:52 +01:00
trace
tracing/kprobes: Do the notrace functions check without kprobes on ftrace
2021-01-19 18:22:35 +01:00
.gitignore
…
acct.c
acct_on(): don't mess with freeze protection
2019-05-31 06:46:05 -07:00
async.c
…
audit_fsnotify.c
fsnotify: add fsnotify_add_inode_mark() wrappers
2018-05-18 14:58:22 +02:00
audit_tree.c
audit: Embed key into chunk
2019-12-13 08:51:11 +01:00
audit_watch.c
audit: CONFIG_CHANGE don't log internal bookkeeping as an event
2020-10-01 13:14:33 +02:00
audit.c
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:05:13 +02:00
audit.h
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:05:13 +02:00
auditfilter.c
audit: fix a net reference leak in audit_list_rules_send()
2020-06-22 09:05:13 +02:00
auditsc.c
audit: print empty EXECVE args
2019-12-01 09:17:17 +01:00
backtracetest.c
…
bounds.c
kbuild: fix kernel/bounds.c 'W=1' warning
2018-11-13 11:08:47 -08:00
capability.c
LSM: generalize flag passing to security_capable
2020-01-23 08:21:29 +01:00
compat.c
make 'user_access_begin()' do 'access_ok()'
2020-06-22 09:04:58 +02:00
configs.c
…
context_tracking.c
…
cpu_pm.c
kernel/cpu_pm: Fix uninitted local in cpu_pm
2020-06-22 09:05:28 +02:00
cpu.c
kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling
2020-12-30 11:25:45 +01:00
crash_core.c
kernel/crash_core.c: print timestamp using time64_t
2018-08-22 10:52:47 -07:00
crash_dump.c
…
cred.c
memcg: account security cred as well to kmemcg
2020-01-09 10:19:00 +01:00
delayacct.c
delayacct: Use raw_spinlocks
2018-04-27 14:34:51 +02:00
dma.c
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
elfcore.c
kernel/elfcore.c: include proper prototypes
2019-10-11 18:21:23 +02:00
exec_domain.c
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
exit.c
futex: Mark the begin of futex exit explicitly
2021-01-30 13:32:11 +01:00
extable.c
…
fail_function.c
fail_function: Remove a redundant mutex unlock
2020-11-24 13:27:23 +01:00
fork.c
futex: Split futex_mm_release() for exit/exec
2021-01-30 13:32:11 +01:00
freezer.c
PM / reboot: Eliminate race between reboot and suspend
2018-08-06 12:35:20 +02:00
futex.c
futex: Sanitize exit state handling
2021-01-30 13:32:12 +01:00
groups.c
…
hung_task.c
kernel: hung_task.c: disable on suspend
2019-04-20 09:16:02 +02:00
iomem.c
memremap: split devm_memremap_pages() and memremap() infrastructure
2018-05-15 23:08:33 -07:00
irq_work.c
irq_work: Do not raise an IPI when queueing work on the local CPU
2019-05-31 06:46:19 -07:00
jump_label.c
jump_label: move 'asm goto' support test to Kconfig
2019-06-04 08:02:34 +02:00
kallsyms.c
kallsyms: Refactor kallsyms_show_value() to take cred
2020-07-16 08:17:26 +02:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
kconfig: include kernel/Kconfig.preempt from init/Kconfig
2018-08-02 08:06:54 +09:00
kcov.c
kernel/kcov.c: mark write_comp_data() as notrace
2019-02-12 19:47:20 +01:00
kexec_core.c
kexec: Allocate decrypted control pages for kdump if SME is enabled
2019-11-24 08:20:29 +01:00
kexec_file.c
treewide: Use array_size() in vzalloc()
2018-06-12 16:19:22 -07:00
kexec_internal.h
…
kexec.c
kexec: add call to LSM hook in original kexec_load syscall
2018-07-16 12:31:57 -07:00
kmod.c
kmod: make request_module() return an error when autoloading is disabled
2020-04-17 10:48:52 +02:00
kprobes.c
kprobes: Fix compiler warning for !CONFIG_KPROBES_ON_FTRACE
2020-10-01 13:14:54 +02:00
ksysfs.c
…
kthread.c
kthread_worker: prevent queuing delayed work from timer_fn when it is being canceled
2020-11-10 12:35:58 +01:00
latencytop.c
…
Makefile
y2038: futex: Move compat implementation into futex.c
2019-12-01 09:17:38 +01:00
memremap.c
mm/memory_hotplug: shrink zones when offlining memory
2020-01-29 16:43:27 +01:00
module_signing.c
modsign: log module name in the event of an error
2018-07-02 11:36:17 +02:00
module-internal.h
modsign: log module name in the event of an error
2018-07-02 11:36:17 +02:00
module.c
module: delay kobject uevent until after module init call
2021-01-06 14:45:01 +01:00
notifier.c
x86/mm: split vmalloc_sync_all()
2020-03-25 08:06:13 +01:00
nsproxy.c
…
padata.c
padata: purge get_cpu and reorder_via_wq from padata_do_serial
2020-05-27 17:37:36 +02:00
panic.c
kernel/panic.c: do not append newline to the stack protector panic string
2019-12-01 09:17:10 +01:00
params.c
…
pid_namespace.c
signal/pid_namespace: Fix reboot_pid_ns to use send_sig not force_sig
2019-07-26 09:14:01 +02:00
pid.c
Fix failure path in alloc_pid()
2019-01-13 09:51:06 +01:00
profile.c
…
ptrace.c
ptrace: Set PF_SUPERPRIV when checking capability
2020-11-24 13:27:26 +01:00
range.c
…
reboot.c
reboot: fix overflow parsing reboot cpu number
2020-11-18 19:18:52 +01:00
relay.c
kernel/relay.c: fix memleak on destroy relay channel
2020-08-26 10:30:59 +02:00
resource.c
resource: fix locking in find_next_iomem_res()
2019-09-16 08:22:20 +02:00
rseq.c
rseq: uapi: Declare rseq_cs field as union, update includes
2018-07-10 22:18:52 +02:00
seccomp.c
seccomp: Set PF_SUPERPRIV when checking capability
2020-11-24 13:27:26 +01:00
signal.c
ptrace: fix task_join_group_stop() for the case when current is traced
2020-11-10 12:35:53 +01:00
smp.c
cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
2019-02-12 19:47:25 +01:00
smpboot.c
smpboot: Remove cpumask from the API
2018-07-03 09:20:44 +02:00
smpboot.h
…
softirq.c
nohz: Fix missing tick reprogram when interrupting an inline softirq
2018-08-03 15:52:10 +02:00
stacktrace.c
…
stop_machine.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-08-13 11:25:07 -07:00
sys_ni.c
Merge branch 'core-rseq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-06-10 10:17:09 -07:00
sys.c
kernel/sys.c: avoid copying possible padding bytes in copy_to_user
2020-10-01 13:14:29 +02:00
sysctl_binary.c
…
sysctl.c
kernel: sysctl: make drop_caches write-only
2020-01-04 19:13:17 +01:00
task_work.c
…
taskstats.c
taskstats: fix data-race
2020-01-09 10:18:59 +01:00
test_kprobes.c
kprobes: Remove jprobe API implementation
2018-06-21 12:33:05 +02:00
torture.c
torture: Keep old-school dmesg format
2018-06-25 11:30:10 -07:00
tracepoint.c
tracepoint: Fix tracepoint array element size mismatch
2018-10-17 15:35:29 -04:00
tsacct.c
…
ucount.c
…
uid16.c
…
uid16.h
…
umh.c
usermodehelper: reset umask to default before executing user process
2020-10-14 10:31:21 +02:00
up.c
…
user_namespace.c
userns: also map extents in the reverse map to kernel IDs
2018-11-13 11:09:00 -08:00
user-return-notifier.c
…
user.c
userns: use irqsave variant of refcount_dec_and_lock()
2018-08-22 10:52:47 -07:00
utsname_sysctl.c
sys: don't hold uts_sem while accessing userspace memory
2018-08-11 02:05:53 -05:00
utsname.c
…
watchdog_hld.c
watchdog: Mark watchdog touch functions as notrace
2018-08-30 12:56:40 +02:00
watchdog.c
watchdog/softlockup: Enforce that timestamp is valid on boot
2020-02-24 08:34:49 +01:00
workqueue_internal.h
workqueue: Set worker->desc to workqueue name by default
2018-05-18 08:47:13 -07:00
workqueue.c
workqueue: Kick a worker based on the actual activation of delayed works
2021-01-12 20:10:16 +01:00