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d5e1586617be7093ea3419e3fa9387ed833cdbb1
linux/kernel
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Peter Zijlstra d5e1586617 sched: Unconditionally use full-fat wait_task_inactive() 
While modifying wait_task_inactive() for PREEMPT_RT; the build robot
noted that UP got broken. This led to audit and consideration of the
UP implementation of wait_task_inactive().

It looks like the UP implementation is also broken for PREEMPT;
consider task_current_syscall() getting preempted between the two
calls to wait_task_inactive().

Therefore move the wait_task_inactive() implementation out of
CONFIG_SMP and unconditionally use it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230602103731.GA630648%40hirez.programming.kicks-ass.net
2023-06-05 21:11:02 +02:00
..
bpf
Merge tag 'cgroup-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2023-04-29 10:05:22 -07:00
cgroup
psi: remove 500ms min window size limitation for triggers
2023-05-08 10:58:38 +02:00
configs
Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2023-04-27 12:07:50 -07:00
debug
kdb: use srcu console list iterator
2022-12-02 11:25:00 +01:00
dma
Merge tag 'dma-mapping-6.4-2023-04-28' of git://git.infradead.org/users/hch/dma-mapping
2023-04-29 10:29:57 -07:00
entry
ptrace: Provide set/get interface for syscall user dispatch
2023-04-16 14:23:07 +02:00
events
Merge tag 'perf-core-2023-04-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-04-28 14:41:53 -07:00
futex
Merge tag 'locking_urgent_for_v6.2_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-01-01 11:15:05 -08:00
gcov
gcov: add support for checksum field
2022-12-21 14:31:52 -08:00
irq
genirq: Update affinity of secondary threads
2023-04-15 10:17:16 +02:00
kcsan
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-04-27 19:42:02 -07:00
livepatch
Merge tag 'sched-core-2023-04-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-04-28 14:53:30 -07:00
locking
Merge tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-05-05 12:56:55 -07:00
module
module: include internal.h in module/dups.c
2023-05-02 20:33:36 -07:00
power
Merge tag 'pm-6.4-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2023-05-03 12:01:05 -07:00
printk
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-04-27 19:42:02 -07:00
rcu
Merge tag 'rcu.6.4.april5.2023.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux
2023-04-24 12:16:14 -07:00
sched
sched: Unconditionally use full-fat wait_task_inactive()
2023-06-05 21:11:02 +02:00
time
Merge tag 'timers-core-2023-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2023-04-29 10:24:30 -07:00
trace
Merge tag 'trace-v6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2023-05-05 13:11:02 -07:00
.gitignore
…
acct.c
acct: fix potential integer overflow in encode_comp_t()
2022-11-30 16:13:18 -08:00
async.c
…
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-08-22 18:50:06 -04:00
audit_tree.c
audit: use fsnotify group lock helpers
2022-04-25 14:37:28 +02:00
audit_watch.c
audit_init_parent(): constify path
2022-09-01 17:39:30 -04:00
audit.c
audit: use time_after to compare time
2022-08-29 19:47:03 -04:00
audit.h
audit: remove selinux_audit_rule_update() declaration
2022-09-07 11:30:15 -04:00
auditfilter.c
…
auditsc.c
capability: just use a 'u64' instead of a 'u32[2]' array
2023-03-01 10:01:22 -08:00
backtracetest.c
…
bounds.c
mm: multi-gen LRU: minimal implementation
2022-09-26 19:46:09 -07:00
capability.c
capability: just use a 'u64' instead of a 'u32[2]' array
2023-03-01 10:01:22 -08:00
cfi.c
cfi: Switch to -fsanitize=kcfi
2022-09-26 10:13:13 -07:00
compat.c
sched_getaffinity: don't assume 'cpumask_size()' is fully initialized
2023-03-14 19:32:38 -07:00
configs.c
…
context_tracking.c
context_tracking: Fix noinstr vs KASAN
2023-01-13 11:48:18 +01:00
cpu_pm.c
cpuidle, cpu_pm: Remove RCU fiddling from cpu_pm_{enter,exit}()
2023-01-13 11:48:15 +01:00
cpu.c
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-04-27 19:42:02 -07:00
crash_core.c
mm, treewide: redefine MAX_ORDER sanely
2023-04-05 19:42:46 -07:00
crash_dump.c
…
cred.c
cred: Do not default to init_cred in prepare_kernel_cred()
2022-11-01 10:04:52 -07:00
delayacct.c
delayacct: track delays from IRQ/SOFTIRQ
2023-04-18 16:39:34 -07:00
dma.c
…
exec_domain.c
…
exit.c
Merge tag 'trace-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2023-04-28 15:57:53 -07:00
extable.c
context_tracking: Take NMI eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
fail_function.c
kernel/fail_function: fix memory leak with using debugfs_lookup()
2023-02-08 13:36:22 +01:00
fork.c
Merge tag 'iommu-updates-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
2023-04-30 13:00:38 -07:00
freezer.c
freezer,sched: Rewrite core freezer logic
2022-09-07 21:53:50 +02:00
gen_kheaders.sh
kheaders: use standard naming for the temporary directory
2023-01-22 23:43:34 +09:00
groups.c
security: Add LSM hook to setgroups() syscall
2022-07-15 18:21:49 +00:00
hung_task.c
kernel/hung_task.c: set some hung_task.c variables storage-class-specifier to static
2023-04-08 13:45:37 -07:00
iomem.c
…
irq_work.c
trace: Add trace_ipi_send_cpu()
2023-03-24 11:01:29 +01:00
jump_label.c
jump_label: Prevent key->enabled int overflow
2022-12-01 15:53:05 -08:00
kallsyms_internal.h
kallsyms: Reduce the memory occupied by kallsyms_seqs_of_names[]
2022-11-12 18:47:36 -08:00
kallsyms_selftest.c
kallsyms: Delete an unused parameter related to {module_}kallsyms_on_each_symbol()
2023-03-19 13:27:19 -07:00
kallsyms_selftest.h
kallsyms: Add self-test facility
2022-11-15 00:42:02 -08:00
kallsyms.c
kallsyms: Delete an unused parameter related to {module_}kallsyms_on_each_symbol()
2023-03-19 13:27:19 -07:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
mm: replace vma->vm_flags direct modifications with modifier calls
2023-02-09 16:51:39 -08:00
kexec_core.c
Merge tag 'mm-nonmm-stable-2023-02-20-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-02-23 17:55:40 -08:00
kexec_elf.c
…
kexec_file.c
kexec: remove unnecessary arch_kexec_kernel_image_load()
2023-04-08 13:45:38 -07:00
kexec_internal.h
panic, kexec: make __crash_kexec() NMI safe
2022-09-11 21:55:06 -07:00
kexec.c
kexec: introduce sysctl parameters kexec_load_limit_*
2023-02-02 22:50:05 -08:00
kheaders.c
kheaders: Use array declaration instead of char
2023-03-24 20:10:59 -07:00
kprobes.c
x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range
2023-02-21 08:49:16 +09:00
ksysfs.c
kernel/ksysfs.c: use sysfs_emit for sysfs show handlers
2023-03-24 17:09:14 +01:00
kthread.c
Merge tag 'mm-stable-2023-04-27-15-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2023-04-27 19:42:02 -07:00
latencytop.c
latencytop: use the last element of latency_record of system
2022-09-11 21:55:12 -07:00
Makefile
Merge tag 'modules-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
2023-04-27 16:36:55 -07:00
module_signature.c
…
notifier.c
notifiers: add tracepoints to the notifiers infrastructure
2023-04-08 13:45:38 -07:00
nsproxy.c
convert setns(2) to fdget()/fdput()
2023-04-20 22:55:35 -04:00
padata.c
padata: use alignment when calculating the number of worker threads
2023-03-14 17:06:44 +08:00
panic.c
cpu: Mark nmi_panic_self_stop() __noreturn
2023-04-14 17:31:26 +02:00
params.c
module: make module_ktype structure constant
2023-03-09 12:55:15 -08:00
pid_namespace.c
kernel: pid_namespace: simplify sysctls with register_sysctl()
2023-05-02 19:23:29 -07:00
pid_sysctl.h
kernel: pid_namespace: simplify sysctls with register_sysctl()
2023-05-02 19:23:29 -07:00
pid.c
pid: add pidfd_prepare()
2023-04-03 11:16:56 +02:00
profile.c
kernel/profile.c: simplify duplicated code in profile_setup()
2022-09-11 21:55:12 -07:00
ptrace.c
ptrace: Provide set/get interface for syscall user dispatch
2023-04-16 14:23:07 +02:00
range.c
…
reboot.c
kernel/reboot: Add SYS_OFF_MODE_RESTART_PREPARE mode
2022-10-04 15:59:36 +02:00
regset.c
…
relay.c
relayfs: fix out-of-bounds access in relay_file_read
2023-05-02 17:23:27 -07:00
resource_kunit.c
…
resource.c
dax/kmem: Fix leak of memory-hotplug resources
2023-02-17 14:58:01 -08:00
rseq.c
rseq: Extend struct rseq with per-memory-map concurrency ID
2022-12-27 12:52:12 +01:00
scftorture.c
…
scs.c
scs: add support for dynamic shadow call stacks
2022-11-09 18:06:35 +00:00
seccomp.c
seccomp: simplify sysctls with register_sysctl_init()
2023-04-13 11:49:20 -07:00
signal.c
posix-timers: Prefer delivery of signals to the current thread
2023-04-16 09:00:18 +02:00
smp.c
trace,smp: Trace all smp_function_call*() invocations
2023-03-24 11:01:30 +01:00
smpboot.c
smpboot: use atomic_try_cmpxchg in cpu_wait_death and cpu_report_death
2022-09-11 21:55:10 -07:00
smpboot.h
…
softirq.c
softirq: Add trace points for tasklet entry/exit
2023-04-15 10:17:16 +02:00
stackleak.c
stackleak: allow to specify arch specific stackleak poison function
2023-04-20 11:36:35 +02:00
stacktrace.c
…
static_call_inline.c
static_call: Add call depth tracking support
2022-10-17 16:41:16 +02:00
static_call.c
…
stop_machine.c
Merge tag 'sched-core-2022-05-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2022-05-24 11:11:13 -07:00
sys_ni.c
kernel/sys_ni: add compat entry for fadvise64_64
2022-08-20 15:17:45 -07:00
sys.c
mm/ksm: unmerge and clear VM_MERGEABLE when setting PR_SET_MEMORY_MERGE=0
2023-05-02 17:21:49 -07:00
sysctl-test.c
kernel/sysctl-test: use SYSCTL_{ZERO/ONE_HUNDRED} instead of i_{zero/one_hundred}
2022-09-08 16:56:45 -07:00
sysctl.c
mm: compaction: move compaction sysctl to its own file
2023-04-13 11:49:35 -07:00
task_work.c
task_work: use try_cmpxchg in task_work_add, task_work_cancel_match and task_work_run
2022-09-11 21:55:10 -07:00
taskstats.c
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
torture.c
torture: Fix hang during kthread shutdown phase
2023-01-05 12:10:35 -08:00
tracepoint.c
tracepoint: Allow livepatch module add trace event
2023-02-18 14:34:36 -05:00
tsacct.c
taskstats: version 12 with thread group and exe info
2022-04-29 14:38:03 -07:00
ucount.c
ucounts: Split rlimit and ucount values and max values
2022-05-18 18:24:57 -05:00
uid16.c
…
uid16.h
…
umh.c
umh: simplify the capability pointer logic
2023-03-03 16:18:19 -08:00
up.c
…
user_namespace.c
userns: fix a struct's kernel-doc notation
2023-02-02 22:50:04 -08:00
user-return-notifier.c
…
user.c
kernel/user: Allow user_struct::locked_vm to be usable for iommufd
2022-11-30 20:16:49 -04:00
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: simplify one-level sysctl registration for uts_kern_table
2023-04-13 11:49:35 -07:00
utsname.c
…
vhost_task.c
vhost_task: Allow vhost layer to use copy_process
2023-03-23 12:45:36 +01:00
watch_queue.c
Merge tag 'modules-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
2023-04-27 16:36:55 -07:00
watchdog_hld.c
Revert "printk: add functions to prefer direct printing"
2022-06-23 18:41:40 +02:00
watchdog.c
Merge tag 'powerpc-6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2022-08-06 16:38:17 -07:00
workqueue_internal.h
…
workqueue.c
Merge tag 'wq-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2023-04-29 09:48:52 -07:00