Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
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.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
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
auditfilter.c
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
context_tracking.c
cpu.c	random: clear fast pool, crng, and batches in cpuhp bring up	2022-06-22 14:11:12 +02:00
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
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
futex.c	treewide: Remove uninitialized_var() usage	2023-06-09 10:29:01 +02:00
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c
kcmp.c	exec: Transform exec_update_mutex into a rw_semaphore	2021-01-09 13:44:55 +01:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.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_file.c	kexec: support purgatories with .text.hot sections	2023-06-21 15:44:10 +02:00
kexec_internal.h
kheaders.c	kheaders: Use array declaration instead of char	2023-05-17 11:35:33 +02:00
kmod.c
kprobes.c	x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range	2023-03-11 16:44:02 +01:00
ksysfs.c
kthread.c	kthread: Fix PF_KTHREAD vs to_kthread() race	2021-09-12 08:56:39 +02:00
latencytop.c
Makefile	kbuild: update config_data.gz only when the content of .config is changed	2021-05-11 14:04:16 +02:00
module-internal.h
module.c	modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules	2023-09-23 10:59:36 +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
notifier.c
nsproxy.c
padata.c
panic.c	exit: Use READ_ONCE() for all oops/warn limit reads	2023-02-06 07:52:50 +01:00
params.c
pid.c
pid_namespace.c	memcg: enable accounting for pids in nested pid namespaces	2021-09-22 12:26:37 +02:00
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
relay.c	relayfs: fix out-of-bounds access in relay_file_read	2023-05-17 11:35:58 +02:00
resource.c
rseq.c
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
stackleak.c
stacktrace.c
stop_machine.c
sys.c	prlimit: do_prlimit needs to have a speculation check	2023-01-24 07:17:59 +01:00
sys_ni.c	kernel/sys_ni: add compat entry for fadvise64_64	2022-09-05 10:27:38 +02:00
sysctl-test.c
sysctl.c	mm: allow a controlled amount of unfairness in the page lock	2023-08-30 16:27:26 +02:00
sysctl_binary.c
task_work.c
taskstats.c
test_kprobes.c
torture.c
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
uid16.c
uid16.h
umh.c
up.c	smp: Fix smp_call_function_single_async prototype	2021-05-14 09:44:33 +02:00
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
watchdog.c	watchdog: export lockup_detector_reconfigure	2022-08-25 11:18:37 +02:00
watchdog_hld.c	watchdog/perf: more properly prevent false positives with turbo modes	2023-07-27 08:37:10 +02:00
workqueue.c	workqueue: Override implicit ordered attribute in workqueue_apply_unbound_cpumask()	2023-10-25 11:53:18 +02:00
workqueue_internal.h