android/android_kernel_asus_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
e4e4d4abb8
android_kernel_asus_sm8350/kernel
History
Chen Yu 09ce728c9e genirq/matrix: Exclude managed interrupts in irq_matrix_allocated() 
[ Upstream commit a0b0bad10587ae2948a7c36ca4ffc206007fbcf3 ]

When a CPU is about to be offlined, x86 validates that all active
interrupts which are targeted to this CPU can be migrated to the remaining
online CPUs. If not, the offline operation is aborted.

The validation uses irq_matrix_allocated() to retrieve the number of
vectors which are allocated on the outgoing CPU. The returned number of
allocated vectors includes also vectors which are associated to managed
interrupts.

That's overaccounting because managed interrupts are:

  - not migrated when the affinity mask of the interrupt targets only
    the outgoing CPU

  - migrated to another CPU, but in that case the vector is already
    pre-allocated on the potential target CPUs and must not be taken into
    account.

As a consequence the check whether the remaining online CPUs have enough
capacity for migrating the allocated vectors from the outgoing CPU might
fail incorrectly.

Let irq_matrix_allocated() return only the number of allocated non-managed
interrupts to make this validation check correct.

[ tglx: Amend changelog and fixup kernel-doc comment ]

Fixes: 2f75d9e1c9 ("genirq: Implement bitmap matrix allocator")
Reported-by: Wendy Wang <wendy.wang@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20231020072522.557846-1-yu.c.chen@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-11-20 10:30:08 +01:00
..
bpf bpf: Avoid deadlock when using queue and stack maps from NMI 2023-10-10 21:46:36 +02:00
cgroup cgroup: Remove duplicates in cgroup v1 tasks file 2023-10-25 11:53:19 +02:00
configs
debug treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD() 2023-04-20 12:07:32 +02:00
dma treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
events perf/core: Fix potential NULL deref 2023-11-08 11:23:37 +01:00
gcov gcov: add support for checksum field 2023-01-18 11:41:42 +01:00
irq genirq/matrix: Exclude managed interrupts in irq_matrix_allocated() 2023-11-20 10:30:08 +01:00
livepatch livepatch: fix race between fork and KLP transition 2022-10-26 13:22:18 +02:00
locking treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
power PM: hibernate: Fix mistake in kerneldoc comment 2023-01-18 11:40:53 +01:00
printk printk: fix return value of printk.devkmsg __setup handler 2022-04-15 14:18:08 +02:00
rcu rcu: Suppress smp_processor_id() complaint in synchronize_rcu_expedited_wait() 2023-03-11 16:43:54 +01:00
sched sched/fair: Don't balance task to its current running CPU 2023-07-27 08:37:42 +02:00
time posix-timers: Ensure timer ID search-loop limit is valid 2023-07-27 08:37:42 +02:00
trace tracing: relax trace_event_eval_update() execution with cond_resched() 2023-10-25 11:53:23 +02:00
.gitignore kbuild: update config_data.gz only when the content of .config is changed 2021-05-11 14:04:16 +02:00
acct.c acct: fix potential integer overflow in encode_comp_t() 2023-01-18 11:41:34 +01:00
async.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
audit_fsnotify.c audit: fix potential double free on error path from fsnotify_add_inode_mark 2022-09-05 10:27:38 +02:00
audit_tree.c audit: move put_tree() to avoid trim_trees refcount underflow and UAF 2021-09-03 10:08:16 +02:00
audit_watch.c audit: CONFIG_CHANGE don't log internal bookkeeping as an event 2020-10-01 13:17:32 +02:00
audit.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
audit.h audit: log AUDIT_TIME_* records only from rules 2022-04-15 14:18:04 +02:00
auditfilter.c audit: fix a net reference leak in audit_list_rules_send() 2020-06-22 09:30:59 +02:00
auditsc.c audit: fix possible soft lockup in __audit_inode_child() 2023-09-23 10:59:46 +02:00
backtracetest.c treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD() 2023-04-20 12:07:32 +02:00
bounds.c
capability.c
compat.c sched_getaffinity: don't assume 'cpumask_size()' is fully initialized 2023-04-05 11:16:42 +02:00
configs.c kernel/configs: Replace GPL boilerplate code with SPDX identifier 2019-07-30 18:34:15 +02:00
context_tracking.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
cpu_pm.c kernel/cpu_pm: Fix uninitted local in cpu_pm 2020-06-22 09:31:22 +02:00
cpu.c random: clear fast pool, crng, and batches in cpuhp bring up 2022-06-22 14:11:12 +02:00
crash_core.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230 2019-06-19 17:09:06 +02:00
crash_dump.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
cred.c keys: Fix request_key() cache 2020-01-17 19:48:42 +01:00
delayacct.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 25 2019-05-21 11:52:39 +02:00
dma.c
exec_domain.c
exit.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
extable.c kernel/extable.c: use address-of operator on section symbols 2023-06-09 10:29:01 +02:00
fail_function.c kernel/fail_function: fix memory leak with using debugfs_lookup() 2023-03-11 16:44:15 +01:00
fork.c kernel/fork: beware of __put_task_struct() calling context 2023-09-23 11:00:03 +02:00
freezer.c Revert "libata, freezer: avoid block device removal while system is frozen" 2019-10-06 09:11:37 -06:00
futex.c treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
gen_kheaders.sh kbuild: add variables for compression tools 2020-09-03 11:27:10 +02:00
groups.c
hung_task.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
iomem.c mm/nvdimm: add is_ioremap_addr and use that to check ioremap address 2019-07-12 11:05:40 -07:00
irq_work.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
jump_label.c jump_label: Don't warn on __exit jump entries 2019-08-29 15:10:10 +01:00
kallsyms.c kallsyms: Refactor kallsyms_show_value() to take cred 2020-07-16 08:16:44 +02:00
kcmp.c exec: Transform exec_update_mutex into a rw_semaphore 2021-01-09 13:44:55 +01:00
Kconfig.freezer treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Kconfig.hz treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Kconfig.locks treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Kconfig.preempt sched/rt, Kconfig: Unbreak def/oldconfig with CONFIG_PREEMPT=y 2019-07-22 18:05:11 +02:00
kcov.c
kexec_core.c kexec: fix a memory leak in crash_shrink_memory() 2023-07-27 08:37:10 +02:00
kexec_elf.c kexec_elf: support 32 bit ELF files 2019-09-06 23:58:44 +02:00
kexec_file.c kexec: support purgatories with .text.hot sections 2023-06-21 15:44:10 +02:00
kexec_internal.h
kexec.c kexec_load: Disable at runtime if the kernel is locked down 2019-08-19 21:54:15 -07:00
kheaders.c kheaders: Use array declaration instead of char 2023-05-17 11:35:33 +02:00
kmod.c kmod: make request_module() return an error when autoloading is disabled 2020-04-17 10:50:22 +02:00
kprobes.c x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range 2023-03-11 16:44:02 +01:00
ksysfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 170 2019-05-30 11:26:39 -07:00
kthread.c kthread: Fix PF_KTHREAD vs to_kthread() race 2021-09-12 08:56:39 +02:00
latencytop.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
Makefile kbuild: update config_data.gz only when the content of .config is changed 2021-05-11 14:04:16 +02:00
module_signature.c module: harden ELF info handling 2021-04-07 14:47:38 +02:00
module_signing.c module: harden ELF info handling 2021-04-07 14:47:38 +02:00
module-internal.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
module.c modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules 2023-09-23 10:59:36 +02:00
notifier.c kernel/notifier.c: intercept duplicate registrations to avoid infinite loops 2020-10-01 13:17:23 +02:00
nsproxy.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
padata.c padata: add separate cpuhp node for CPUHP_PADATA_DEAD 2020-06-17 16:40:22 +02:00
panic.c exit: Use READ_ONCE() for all oops/warn limit reads 2023-02-06 07:52:50 +01:00
params.c lockdown: Lock down module params that specify hardware parameters (eg. ioport) 2019-08-19 21:54:16 -07:00
pid_namespace.c memcg: enable accounting for pids in nested pid namespaces 2021-09-22 12:26:37 +02:00
pid.c kernel/pid.c: convert struct pid count to refcount_t 2019-07-16 19:23:24 -07:00
profile.c profiling: fix shift too large makes kernel panic 2022-08-25 11:18:02 +02:00
ptrace.c ptrace: Reimplement PTRACE_KILL by always sending SIGKILL 2022-06-14 18:11:24 +02:00
range.c
reboot.c reboot: fix overflow parsing reboot cpu number 2020-11-18 19:20:30 +01:00
relay.c relayfs: fix out-of-bounds access in relay_file_read 2023-05-17 11:35:58 +02:00
resource.c /dev/mem: Revoke mappings when a driver claims the region 2020-06-24 17:50:35 +02:00
rseq.c signal: Remove task parameter from force_sig 2019-05-27 09:36:28 -05:00
seccomp.c seccomp: Invalidate seccomp mode to catch death failures 2022-02-16 12:52:53 +01:00
signal.c signal handling: don't use BUG_ON() for debugging 2022-07-21 20:59:27 +02:00
smp.c smp: Fix offline cpu check in flush_smp_call_function_queue() 2022-04-20 09:19:39 +02:00
smpboot.c kthread: Extract KTHREAD_IS_PER_CPU 2021-02-07 15:35:49 +01:00
smpboot.h
softirq.c Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 11:01:13 -07:00
stackleak.c
stacktrace.c stacktrace: Don't skip first entry on noncurrent tasks 2019-11-04 21:19:25 +01:00
stop_machine.c stop_machine: Avoid potential race behaviour 2019-10-17 12:47:12 +02:00
sys_ni.c kernel/sys_ni: add compat entry for fadvise64_64 2022-09-05 10:27:38 +02:00
sys.c prlimit: do_prlimit needs to have a speculation check 2023-01-24 07:17:59 +01:00
sysctl_binary.c
sysctl-test.c kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec() 2020-10-01 13:17:10 +02:00
sysctl.c mm: allow a controlled amount of unfairness in the page lock 2023-08-30 16:27:26 +02:00
task_work.c
taskstats.c taskstats: fix data-race 2020-01-09 10:19:54 +01:00
test_kprobes.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 25 2019-05-21 11:52:39 +02:00
torture.c torture: Remove exporting of internal functions 2019-08-01 14:30:22 -07:00
tracepoint.c tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing 2021-07-14 16:53:08 +02:00
tsacct.c taskstats: Cleanup the use of task->exit_code 2022-02-23 11:59:57 +01:00
ucount.c proc/sysctl: add shared variables for range check 2019-07-18 17:08:07 -07:00
uid16.c
uid16.h
umh.c usermodehelper: reset umask to default before executing user process 2020-10-14 10:32:58 +02:00
up.c smp: Fix smp_call_function_single_async prototype 2021-05-14 09:44:33 +02:00
user_namespace.c Keyrings namespacing 2019-07-08 19:36:47 -07:00
user-return-notifier.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
user.c Keyrings namespacing 2019-07-08 19:36:47 -07:00
utsname_sysctl.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
utsname.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
watchdog_hld.c watchdog/perf: more properly prevent false positives with turbo modes 2023-07-27 08:37:10 +02:00
watchdog.c watchdog: export lockup_detector_reconfigure 2022-08-25 11:18:37 +02:00
workqueue_internal.h
workqueue.c workqueue: Override implicit ordered attribute in workqueue_apply_unbound_cpumask() 2023-10-25 11:53:18 +02:00