kernel_optimize_test/kernel
Rei Yamamoto 0275c75955 genirq/affinity: Consider that CPUs on nodes can be unbalanced
commit 08d835dff916bfe8f45acc7b92c7af6c4081c8a7 upstream.

If CPUs on a node are offline at boot time, the number of nodes is
different when building affinity masks for present cpus and when building
affinity masks for possible cpus. This causes the following problem:

In the case that the number of vectors is less than the number of nodes
there are cases where bits of masks for present cpus are overwritten when
building masks for possible cpus.

Fix this by excluding CPUs, which are not part of the current build mask
(present/possible).

[ tglx: Massaged changelog and added comment ]

Fixes: b825921990 ("genirq/affinity: Spread IRQs to all available NUMA nodes")
Signed-off-by: Rei Yamamoto <yamamoto.rei@jp.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220331003309.10891-1-yamamoto.rei@jp.fujitsu.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-20 09:23:29 +02:00
..
bpf bpf: Adjust BPF stack helper functions to accommodate skip > 0 2022-04-08 14:40:43 +02:00
cgroup cgroup: Use open-time credentials for process migraton perm checks 2022-04-13 21:01:10 +02:00
configs
debug kdb: Fix the putarea helper function 2022-04-08 14:40:29 +02:00
dma dma-debug: fix return value of __setup handlers 2022-04-08 14:40:25 +02:00
entry KVM: rseq: Update rseq when processing NOTIFY_RESUME on xfer to KVM guest 2021-10-06 15:55:49 +02:00
events perf/core: Fix address filter parser for multiple filters 2022-04-08 14:40:03 +02:00
gcov
irq genirq/affinity: Consider that CPUs on nodes can be unbalanced 2022-04-20 09:23:29 +02:00
kcsan
livepatch livepatch: Fix build failure on 32 bits processors 2022-04-08 14:40:15 +02:00
locking locking/lockdep: Iterate lock_classes directly when reading lockdep files 2022-04-08 14:40:32 +02:00
power PM: suspend: fix return value of __setup handler 2022-04-08 14:40:01 +02:00
printk printk: fix return value of printk.devkmsg __setup handler 2022-04-08 14:40:08 +02:00
rcu rcu: Don't deboost before reporting expedited quiescent state 2022-03-28 09:57:10 +02:00
sched sched/core: Export pelt_thermal_tp 2022-04-08 14:40:03 +02:00
time clocksource: Avoid accidental unstable marking of clocksources 2022-01-27 10:54:06 +01:00
trace tracing: Ensure trace buffer is at least 4096 bytes large 2022-03-16 14:16:00 +01:00
.gitignore
acct.c
async.c Revert "module, async: async_synchronize_full() on module init iff async is used" 2022-02-23 12:01:00 +01:00
audit_fsnotify.c
audit_tree.c
audit_watch.c
audit.c audit: improve audit queue handling when "audit=1" on cmdline 2022-02-08 18:30:34 +01:00
audit.h audit: log AUDIT_TIME_* records only from rules 2022-04-08 14:40:00 +02:00
auditfilter.c
auditsc.c audit: log AUDIT_TIME_* records only from rules 2022-04-08 14:40:00 +02:00
backtracetest.c
bounds.c
capability.c
compat.c
configs.c
context_tracking.c
cpu_pm.c
cpu.c sched/scs: Reset task stack state in bringup_cpu() 2021-12-01 09:19:08 +01:00
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c
extable.c
fail_function.c
fork.c copy_process(): Move fd_install() out of sighand->siglock critical section 2022-02-23 12:01:08 +01:00
freezer.c
futex.c
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec_core.c
kexec_elf.c
kexec_file.c
kexec_internal.h
kexec.c
kheaders.c
kmod.c
kprobes.c kprobes: Limit max data_size of the kretprobe instances 2021-12-08 09:03:20 +01:00
ksysfs.c
kthread.c
latencytop.c
Makefile
module_signature.c
module_signing.c
module-internal.h
module.c Revert "module, async: async_synchronize_full() on module init iff async is used" 2022-02-23 12:01:00 +01:00
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid_namespace.c memcg: enable accounting for pids in nested pid namespaces 2021-09-18 13:40:36 +02:00
pid.c
profile.c profiling: fix shift-out-of-bounds bugs 2021-09-26 14:08:58 +02:00
ptrace.c ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE 2022-04-08 14:39:50 +02:00
range.c
reboot.c
regset.c
relay.c
resource.c
rseq.c rseq: Remove broken uapi field layout on 32-bit little endian 2022-04-08 14:40:03 +02:00
scftorture.c
scs.c
seccomp.c
signal.c signal: Remove the bogus sigkill_pending in ptrace_stop 2021-11-18 14:03:47 +01:00
smp.c
smpboot.c
smpboot.h
softirq.c
stackleak.c gcc-plugins/stackleak: Use noinstr in favor of notrace 2022-02-23 12:01:00 +01:00
stacktrace.c
static_call.c
stop_machine.c
sys_ni.c
sys.c prctl: allow to setup brk for et_dyn executables 2021-09-26 14:08:57 +02:00
sysctl-test.c
sysctl.c x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting 2022-03-11 12:11:49 +01:00
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c
tsacct.c taskstats: Cleanup the use of task->exit_code 2022-01-27 10:54:33 +01:00
ucount.c
uid16.c
uid16.h
umh.c
up.c
user_namespace.c
user-return-notifier.c
user.c
usermode_driver.c
utsname_sysctl.c
utsname.c
watch_queue.c watch_queue: Free the page array when watch_queue is dismantled 2022-04-08 14:40:41 +02:00
watchdog_hld.c
watchdog.c
workqueue_internal.h
workqueue.c workqueue: Fix unbind_workers() VS wq_worker_running() race 2022-01-16 09:14:22 +01:00