David Vernet f1efe84d6f rcu_sync: Fix comment to properly reflect rcu_sync_exit() behavior ... The rcu_sync_enter() function is used by updaters to force RCU readers (e.g. percpu-rwsem) to use their slow paths during an update. This is accomplished by setting the ->gp_state of the rcu_sync structure to GP_ENTER. In the case of percpu-rwsem, the readers' slow path waits on a semaphore instead of just incrementing a reader count. Each updater invokes the rcu_sync_exit() function to signal to readers that they may again take their fastpaths. The rcu_sync_exit() function sets the ->gp_state of the rcu_sync structure to GP_EXIT, and if all goes well, after a grace period the ->gp_state reverts back to GP_IDLE. Unfortunately, the rcu_sync_enter() function currently has a comment incorrectly stating that rcu_sync_exit() (by an updater) will re-enable reader "slowpaths". This patch changes the comment to state that this function re-enables reader fastpaths. Signed-off-by: David Vernet <void@manifault.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>		2022-04-20 16:51:11 -07:00
..
bpf	bpf: Fix maximum permitted number of arguments check	2022-03-28 19:08:17 -07:00
cgroup	Driver core changes for 5.18-rc1	2022-03-28 12:41:28 -07:00
configs	Char/Misc and other driver updates for 5.18-rc1	2022-03-28 12:27:35 -07:00
debug	kdb: Fix the putarea helper function	2022-03-24 16:39:47 +00:00
dma	dma-mapping: move pgprot_decrypted out of dma_pgprot	2022-04-01 06:46:51 +02:00
entry	Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"	2022-03-31 10:36:55 +02:00
events	asm-generic updates for 5.18	2022-03-23 18:03:08 -07:00
futex	mm/truncate: Inline invalidate_complete_page() into its one caller	2022-03-21 12:59:01 -04:00
gcov	gcov: Remove compiler version check	2021-12-02 17:25:21 +09:00
irq	Changes in this cycle were:	2022-03-22 14:39:12 -07:00
kcsan	KCSAN updates for v5.17	2022-01-11 09:51:26 -08:00
livepatch	ptrace: Cleanups for v5.18	2022-03-28 17:29:53 -07:00
locking	Changes in this cycle were:	2022-03-22 13:44:21 -07:00
power	for-5.18/block-2022-03-18	2022-03-21 16:48:55 -07:00
printk	printk changes for 5.18	2022-03-23 10:54:27 -07:00
rcu	rcu_sync: Fix comment to properly reflect rcu_sync_exit() behavior	2022-04-20 16:51:11 -07:00
sched	preempt/dynamic: Introduce preemption model accessors	2022-04-05 10:24:42 +02:00
time	ptrace: Cleanups for v5.18	2022-03-28 17:29:53 -07:00
trace	Updates to Tracing:	2022-04-03 12:26:01 -07:00
.gitignore
acct.c	kernel: remove spurious blkdev.h includes	2021-10-18 06:17:01 -06:00
async.c	Revert "module, async: async_synchronize_full() on module init iff async is used"	2022-02-03 11:20:34 -08:00
audit_fsnotify.c	fsnotify: clarify contract for create event hooks	2021-10-27 12:32:34 +02:00
audit_tree.c	audit: use struct_size() helper in kmalloc()	2021-12-14 17:39:42 -05:00
audit_watch.c	\n	2021-11-06 16:43:20 -07:00
audit.c	audit: improve audit queue handling when "audit=1" on cmdline	2022-01-25 13:22:51 -05:00
audit.h	audit: log AUDIT_TIME_* records only from rules	2022-02-22 13:51:40 -05:00
auditfilter.c	audit/stable-5.17 PR 20220110	2022-01-11 13:08:21 -08:00
auditsc.c	audit/stable-5.18 PR 20220321	2022-03-21 20:53:11 -07:00
backtracetest.c
bounds.c
capability.c	xfs: don't generate selinux audit messages for capability testing	2022-03-09 10:32:06 -08:00
cfi.c	cfi: Use rcu_read_{un}lock_sched_notrace	2021-08-11 13:11:12 -07:00
compat.c	arch: remove compat_alloc_user_space	2021-09-08 15:32:35 -07:00
configs.c
context_tracking.c
cpu_pm.c	PM: cpu: Make notifier chain use a raw_spinlock_t	2021-08-16 18:55:32 +02:00
cpu.c	Changes in this cycle were:	2022-03-22 14:39:12 -07:00
crash_core.c	kernel/crash_core: suppress unknown crashkernel parameter warning	2021-12-25 12:20:55 -08:00
crash_dump.c
cred.c	x86: Mark __invalid_creds() __noreturn	2022-03-15 10:32:44 +01:00
delayacct.c	delayacct: track delays from memory compact	2022-01-20 08:52:55 +02:00
dma.c
exec_domain.c
exit.c	ptrace: Cleanups for v5.18	2022-03-28 17:29:53 -07:00
extable.c	lkdtm: Really write into kernel text in WRITE_KERN	2022-02-16 23:25:12 +11:00
fail_function.c
fork.c	kasan, arm64: reset pointer tags of vmapped stacks	2022-03-24 19:06:47 -07:00
freezer.c	sched: Add get_current_state()	2021-06-18 11:43:08 +02:00
gen_kheaders.sh
groups.c
hung_task.c	hung_task: move hung_task sysctl interface to hung_task.c	2022-01-22 08:33:34 +02:00
iomem.c
irq_work.c	irq_work: Also rcuwait for !IRQ_WORK_HARD_IRQ on PREEMPT_RT	2021-10-15 11:25:18 +02:00
jump_label.c	jump_label: Fix jump_label_text_reserved() vs __init	2021-07-05 10:46:20 +02:00
kallsyms.c	kallsyms: Skip the name search for empty string	2022-03-17 20:17:18 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks	locking/rwlock: Provide RT variant	2021-08-17 17:50:51 +02:00
Kconfig.preempt	Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"	2022-03-31 10:36:55 +02:00
kcov.c	kcov: properly handle subsequent mmap calls	2022-03-23 19:00:35 -07:00
kexec_core.c	exit: Move oops specific logic from do_exit into make_task_dead	2021-12-13 12:04:45 -06:00
kexec_elf.c
kexec_file.c	memblock: add MEMBLOCK_DRIVER_MANAGED to mimic IORESOURCE_SYSRAM_DRIVER_MANAGED	2021-11-06 13:30:42 -07:00
kexec_internal.h
kexec.c	kexec: avoid compat_alloc_user_space	2021-09-08 15:32:34 -07:00
kheaders.c
kmod.c
kprobes.c	kprobes: Use rethook for kretprobe if possible	2022-03-28 19:38:09 -07:00
ksysfs.c	kernel/ksysfs.c: use helper macro __ATTR_RW	2022-03-23 19:00:33 -07:00
kthread.c	asm-generic updates for 5.18	2022-03-23 18:03:08 -07:00
latencytop.c
Makefile	kprobes: Use rethook for kretprobe if possible	2022-03-28 19:38:09 -07:00
module_decompress.c	module: fix building with sysfs disabled	2022-02-16 12:51:32 -08:00
module_signature.c
module_signing.c
module-internal.h	module: add in-kernel support for decompressing	2022-01-11 18:45:02 -08:00
module.c	NFSD: Remove svc_serv_ops::svo_module	2022-02-28 10:26:40 -05:00
notifier.c	notifier: Return an error when a callback has already been registered	2021-12-29 10:37:33 +01:00
nsproxy.c	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
padata.c	padata: replace cpumask_weight with cpumask_empty in padata.c	2022-01-31 11:21:46 +11:00
panic.c	panic: move panic_print before kmsg dumpers	2022-03-23 19:00:35 -07:00
params.c	kobject: remove kset from struct kset_uevent_ops callbacks	2021-12-28 11:26:18 +01:00
pid_namespace.c	memcg: enable accounting for new namesapces and struct nsproxy	2021-09-03 09:58:12 -07:00
pid.c	pid: add pidfd_get_task() helper	2021-10-14 13:29:18 +02:00
profile.c	exit: Remove profile_handoff_task	2022-01-08 12:43:57 -06:00
ptrace.c	ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE	2022-03-22 13:06:05 -05:00
range.c
reboot.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2021-11-12 11:53:16 -08:00
regset.c
relay.c
resource_kunit.c
resource.c	kernel/resource: fix kfree() of bootmem memory again	2022-03-23 19:00:35 -07:00
rseq.c	rseq: Remove broken uapi field layout on 32-bit little endian	2022-02-02 13:11:34 +01:00
scftorture.c	scftorture: Always log error message	2021-12-07 16:36:17 -08:00
scs.c	kasan, vmalloc: only tag normal vmalloc allocations	2022-03-24 19:06:48 -07:00
seccomp.c	ptrace: Cleanups for v5.18	2022-03-28 17:29:53 -07:00
signal.c	Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"	2022-03-31 10:36:55 +02:00
smp.c	kernel/smp: Provide boot-time timeout for CSD lock diagnostics	2022-04-20 16:50:30 -07:00
smpboot.c	smpboot: Replace deprecated CPU-hotplug functions.	2021-08-10 14:57:42 +02:00
smpboot.h
softirq.c	genirq, softirq: Use in_hardirq() instead of in_irq()	2022-02-02 21:34:19 +01:00
stackleak.c	gcc-plugins/stackleak: Use noinstr in favor of notrace	2022-02-03 17:02:21 -08:00
stacktrace.c	uaccess: remove CONFIG_SET_FS	2022-02-25 09:36:06 +01:00
static_call.c	KVM: x86: allow defining return-0 static calls	2022-02-18 12:44:22 -05:00
stop_machine.c
sys_ni.c	mm/mempolicy: wire up syscall set_mempolicy_home_node	2022-01-15 16:30:30 +02:00
sys.c	prlimit: do not grab the tasklist_lock	2022-03-08 14:33:36 -06:00
sysctl-test.c	kernel/sysctl-test: Remove some casts which are no-longer required	2021-06-23 16:41:24 -06:00
sysctl.c	Merge branch 'akpm' (patches from Andrew)	2022-03-22 16:11:53 -07:00
task_work.c	resume_user_mode: Move to resume_user_mode.h	2022-03-10 16:51:50 -06:00
taskstats.c	taskstats: remove unneeded dead assignment	2022-03-23 19:00:35 -07:00
torture.c	torture: Wake up kthreads after storing task_struct pointer	2022-02-01 17:24:39 -08:00
tracepoint.c	tracepoint: Fix kerneldoc comments	2021-08-16 11:39:51 -04:00
tsacct.c	taskstats: Cleanup the use of task->exit_code	2022-01-08 12:43:57 -06:00
ucount.c	ucounts: Handle wrapping in is_ucounts_overlimit	2022-02-17 09:11:57 -06:00
uid16.c
uid16.h
umh.c
up.c
user_namespace.c	ucounts: Fix systemd LimitNPROC with private users regression	2022-02-25 10:40:14 -06:00
user-return-notifier.c
user.c	fs/epoll: use a per-cpu counter for user's watches count	2021-09-08 11:50:27 -07:00
usermode_driver.c	Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:41:14 -07:00
utsname_sysctl.c
utsname.c
watch_queue.c	watch_queue: Free the page array when watch_queue is dismantled	2022-04-02 10:37:39 -07:00
watchdog_hld.c
watchdog.c	sched/isolation: Use single feature type while referring to housekeeping cpumask	2022-02-16 15:57:55 +01:00
workqueue_internal.h	workqueue: Assign a color to barrier work items	2021-08-17 07:49:10 -10:00
workqueue.c	Merge branch 'for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2022-03-23 12:40:51 -07:00