Paul E. McKenney cb88f7f51b rcu-tasks: Permit use of debug-objects with RCU Tasks flavors ... Currently, cblist_init_generic() holds a raw spinlock when invoking INIT_WORK(). This fails in kernels built with CONFIG_DEBUG_OBJECTS=y due to memory allocation being forbidden while holding a raw spinlock. But the only reason for holding the raw spinlock is to synchronize with early boot calls to call_rcu_tasks(), call_rcu_tasks_rude, and, last but not least, call_rcu_tasks_trace(). These calls also invoke cblist_init_generic() in order to support early boot queueing of callbacks. Except that there are no early boot calls to either of these three functions, and the BPF guys confirm that they have no plans to add any such calls. This commit therefore removes the synchronization and adds a WARN_ON_ONCE() to catch the case of now-prohibited early boot RCU Tasks callback queueing. If early boot queueing is needed, an "initialized" flag may be added to the rcu_tasks structure. Then queueing a callback before this flag is set would initialize the callback list (if needed) and queue the callback. The decision as to where to queue the callback given the possibility of non-zero boot CPUs is left as an exercise for the reader. Reported-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>		2023-07-31 16:06:57 -07:00
..
bpf	bpf, btf: Warn but return no error for NULL btf from __register_btf_kfunc_id_set()	2023-07-03 18:48:09 +02:00
cgroup	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
configs	mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED	2023-05-26 19:01:47 +02:00
debug	kdb: move kdb_send_sig() declaration to a better header file	2023-07-03 09:27:12 +01:00
dma	dma-mapping fixes for Linux 6.5	2023-07-09 10:24:22 -07:00
entry	ptrace: Provide set/get interface for syscall user dispatch	2023-04-16 14:23:07 +02:00
events	cxl for v6.5	2023-07-01 08:58:41 -07:00
futex
gcov
irq	irqdomain: Use return value of strreplace()	2023-06-30 11:13:44 +02:00
kcsan	kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures	2023-06-09 23:29:50 +10:00
livepatch	livepatch: Make 'klp_stack_entries' static	2023-06-05 13:56:52 +02:00
locking	- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in	2023-06-28 10:59:38 -07:00
module	module: fix init_module_from_file() error handling	2023-07-04 10:17:11 -07:00
power	- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.	2023-06-28 10:28:11 -07:00
printk	seqlock/latch: Provide raw_read_seqcount_latch_retry()	2023-06-05 21:11:03 +02:00
rcu	rcu-tasks: Permit use of debug-objects with RCU Tasks flavors	2023-07-31 16:06:57 -07:00
sched	cgroup: Changes for v6.5	2023-06-27 16:54:21 -07:00
time	hardening updates for v6.5-rc1	2023-06-27 21:24:18 -07:00
trace	Tracing fixes for 6.5:	2023-07-06 19:07:15 -07:00
.gitignore
acct.c
async.c
audit.c
audit.h	audit: avoid missing-prototype warnings	2023-05-17 11:34:55 -04:00
audit_fsnotify.c
audit_tree.c
audit_watch.c
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
capability.c	capability: fix kernel-doc warnings in capability.c	2023-05-22 14:30:52 -04:00
cfi.c
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	locking/atomic: treewide: use raw_atomic*_<op>()	2023-06-05 09:57:20 +02:00
cpu.c	cpu/hotplug: Fix off by one in cpuhp_bringup_mask()	2023-05-23 18:06:40 +02:00
cpu_pm.c
crash_core.c	mm, treewide: redefine MAX_ORDER sanely	2023-04-05 19:42:46 -07:00
crash_dump.c
cred.c
delayacct.c	delayacct: track delays from IRQ/SOFTIRQ	2023-04-18 16:39:34 -07:00
dma.c
exec_domain.c
exit.c	fork, vhost: Use CLONE_THREAD to fix freezer/ps regression	2023-06-01 17:15:33 -04:00
extable.c
fail_function.c	kernel/fail_function: fix memory leak with using debugfs_lookup()	2023-02-08 13:36:22 +01:00
fork.c	fork: lock VMAs of the parent process when forking	2023-07-08 14:08:02 -07:00
freezer.c
gen_kheaders.sh	Revert "kheaders: substituting --sort in archive creation"	2023-05-28 16:20:21 +09:00
groups.c
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
kallsyms.c	v6.5-rc1-modules-next	2023-06-28 15:51:08 -07:00
kallsyms_internal.h
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
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: add prototypes for helper functions	2023-06-09 17:44:17 -07:00
kexec.c	kexec: introduce sysctl parameters kexec_load_limit_*	2023-02-02 22:50:05 -08:00
kexec_core.c	kexec: enable kexec_crash_size to support two crash kernel regions	2023-06-09 17:44:24 -07:00
kexec_elf.c
kexec_file.c	- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in	2023-06-28 10:59:38 -07:00
kexec_internal.h
kheaders.c	kheaders: Use array declaration instead of char	2023-03-24 20:10:59 -07:00
kprobes.c	fprobe: Pass return address to the handlers	2023-06-06 21:39:55 +09:00
ksyms_common.c	kallsyms: make kallsyms_show_value() as generic function	2023-06-08 12:27:20 -07:00
ksysfs.c	kernel/ksysfs.c: use sysfs_emit for sysfs show handlers	2023-03-24 17:09:14 +01:00
kthread.c	- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in	2023-06-28 10:59:38 -07:00
latencytop.c
Makefile	v6.5-rc1-modules-next	2023-06-28 15:51:08 -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	panic: hide unused global functions	2023-06-09 17:44:15 -07:00
params.c	kallsyms: Replace all non-returning strlcpy with strscpy	2023-06-14 12:27:38 -07:00
pid.c	pid: use struct_size_t() helper	2023-07-01 08:26:23 -07:00
pid_namespace.c	pid: use struct_size_t() helper	2023-07-01 08:26:23 -07:00
pid_sysctl.h	kernel: pid_namespace: remove unused set_memfd_noexec_scope()	2023-06-19 16:19:28 -07:00
profile.c
ptrace.c	ptrace: Provide set/get interface for syscall user dispatch	2023-04-16 14:23:07 +02:00
range.c
reboot.c
regset.c
relay.c	relayfs: fix out-of-bounds access in relay_file_read	2023-05-02 17:23:27 -07:00
resource.c	dax/kmem: Fix leak of memory-hotplug resources	2023-02-17 14:58:01 -08:00
resource_kunit.c
rseq.c
scftorture.c
scs.c
seccomp.c	seccomp: simplify sysctls with register_sysctl_init()	2023-04-13 11:49:20 -07:00
signal.c	v6.5-rc1-sysctl-next	2023-06-28 16:05:21 -07:00
smp.c	trace,smp: Add tracepoints for scheduling remotelly called functions	2023-06-16 22:08:09 +02:00
smpboot.c	cpu/hotplug: Remove unused state functions	2023-05-15 13:45:00 +02:00
smpboot.h
softirq.c	Revert "softirq: Let ksoftirqd do its job"	2023-05-09 21:50:27 +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.c
static_call_inline.c
stop_machine.c
sys.c	riscv: Add prctl controls for userspace vector management	2023-06-08 07:16:53 -07:00
sys_ni.c	asm-generic updates for 6.5	2023-07-06 10:06:04 -07:00
sysctl-test.c
sysctl.c	v6.5-rc1-sysctl-next	2023-06-28 16:05:21 -07:00
task_work.c
taskstats.c
torture.c
tracepoint.c	tracepoint: Allow livepatch module add trace event	2023-02-18 14:34:36 -05:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c	sysctl: fix unused proc_cap_handler() function warning	2023-06-29 15:19:43 -07:00
up.c
user-return-notifier.c
user.c
user_namespace.c	userns: fix a struct's kernel-doc notation	2023-02-02 22:50:04 -08:00
usermode_driver.c
utsname.c
utsname_sysctl.c	utsname: simplify one-level sysctl registration for uts_kern_table	2023-04-13 11:49:35 -07:00
vhost_task.c	vhost: Fix worker hangs due to missed wake up calls	2023-06-08 15:43:09 -04:00
watch_queue.c	watch_queue: prevent dangling pipe pointer	2023-06-06 10:47:04 +02:00
watchdog.c	watchdog/sparc64: define HARDLOCKUP_DETECTOR_SPARC64	2023-06-19 16:25:29 -07:00
watchdog_buddy.c	watchdog/hardlockup: move SMP barriers from common code to buddy code	2023-06-19 16:25:28 -07:00
watchdog_perf.c	watchdog/perf: add a weak function for an arch to detect if perf can use NMIs	2023-06-09 17:44:21 -07:00
workqueue.c	workqueue: Changes for v6.5	2023-06-27 16:32:52 -07:00
workqueue_internal.h	workqueue: Automatically mark CPU-hogging work items CPU_INTENSIVE	2023-05-17 17:02:08 -10:00