Paul E. McKenney 1772947bd0 rcu: Handle NOCB callbacks from irq-disabled idle code ...

If an RCU callback is queued on a no-CBs CPU from idle code with irqs
disabled, and if that CPU stays idle forever after, the callback will
never be invoked.  This commit therefore adds a check for this situation
in ____call_rcu_nocb(), invoking the RCU core solely for the purpose
of the ensuing return-to-idle transition.  (If the CPU doesn't return
to idle, the next scheduling-clock interrupt will fix things up.)

Reported-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>

2014-09-16 10:08:03 -07:00

..

bpf

net: filter: split 'struct sk_filter' into socket and bpf parts

2014-08-02 15:03:58 -07:00

debug

kdb: Use ktime_get_ts()

2014-06-12 16:18:45 +02:00

events

Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-08-24 16:16:55 -07:00

gcov

kernel/gcov/fs.c: remove unnecessary null test before debugfs_remove

2014-08-08 15:57:24 -07:00

irq

Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2014-08-05 17:38:45 -07:00

locking

arch, locking: Ciao arch_mutex_cpu_relax()

2014-07-17 12:32:47 +02:00

power

Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle'

2014-08-11 23:19:48 +02:00

printk

printk: Add function to return log buffer address and size

2014-08-13 15:13:44 +10:00

rcu

rcu: Handle NOCB callbacks from irq-disabled idle code

2014-09-16 10:08:03 -07:00

sched

Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle'

2014-08-11 23:19:48 +02:00

time

timekeeping: Another fix to the VSYSCALL_OLD update_vsyscall

2014-08-14 11:04:11 -06:00

trace

ftrace: Use current addr when converting to nop in __ftrace_replace_code()

2014-08-22 21:04:35 -04:00

.gitignore

Ignore generated file kernel/x509_certificate_list

2013-12-10 18:21:34 +00:00

acct.c

kernel/acct.c: fix coding style warnings and errors

2014-08-08 15:57:27 -07:00

async.c

…

audit_tree.c

inotify: Fix reporting of cookies for inotify events

2014-02-18 11:17:17 +01:00

audit_watch.c

inotify: Fix reporting of cookies for inotify events

2014-02-18 11:17:17 +01:00

audit.c

CAPABILITIES: remove undefined caps from all processes

2014-07-24 21:53:47 +10:00

audit.h

audit: Use struct net not pid_t to remember the network namespce to reply in

2014-03-20 10:10:53 -04:00

auditfilter.c

kernel/auditfilter.c: replace count*size kmalloc by kcalloc

2014-08-06 18:01:12 -07:00

auditsc.c

auditsc: audit_krule mask accesses need bounds checking

2014-06-10 08:44:40 -07:00

backtracetest.c

kernel/backtracetest.c: replace no level printk by pr_info()

2014-06-04 16:54:14 -07:00

bounds.c

page-cgroup: get rid of NR_PCG_FLAGS

2014-08-08 15:57:18 -07:00

capability.c

CAPABILITIES: remove undefined caps from all processes

2014-07-24 21:53:47 +10:00

cgroup_freezer.c

cgroup: rename cgroup_subsys->base_cftypes to ->legacy_cftypes

2014-07-15 11:05:09 -04:00

cgroup.c

Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2014-08-04 10:11:28 -07:00

compat.c

kernel/compat.c: use sizeof() instead of sizeof

2014-06-04 16:54:19 -07:00

configs.c

…

context_tracking.c

x86/kprobes: Fix build errors and blacklist context_track_user

2014-06-14 09:07:44 +02:00

cpu_pm.c

…

cpu.c

sched: Rework check_for_tasks()

2014-07-05 11:17:45 +02:00

cpuset.c

Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2014-08-04 10:11:28 -07:00

crash_dump.c

…

cred.c

…

delayacct.c

delayacct: Remove braindamaged type conversions

2014-07-23 10:18:06 -07:00

dma.c

…

elfcore.c

switch elf_core_write_extra_phdrs() to dump_emit()

2013-11-09 00:16:23 -05:00

exec_domain.c

kernel/exec_domain.c: code clean-up

2014-06-04 16:54:15 -07:00

exit.c

kernel/exit.c: fix coding style warnings and errors

2014-08-08 15:57:22 -07:00

extable.c

asmlinkage: Make main_extable_sort_needed visible

2014-02-13 18:13:22 -08:00

fork.c

seccomp: Replace BUG(!spin_is_locked()) with assert_spin_lock

2014-08-11 13:29:12 -07:00

freezer.c

libata, freezer: avoid block device removal while system is frozen

2013-12-19 13:50:32 -05:00

futex_compat.c

compat: Get rid of (get|put)_compat_time(val|spec)

2014-02-02 14:09:12 -08:00

futex.c

futex: Simplify futex_lock_pi_atomic() and make it more robust

2014-06-21 22:26:24 +02:00

groups.c

kernel/groups.c: remove return value of set_groups

2014-04-03 16:21:05 -07:00

hung_task.c

kernel/hung_task.c: convert simple_strtoul to kstrtouint

2014-06-04 16:54:15 -07:00

irq_work.c

irq_work: Remove BUG_ON in irq_work_run()

2014-07-05 11:17:26 +02:00

jump_label.c

static_key: WARN on usage before jump_label_init was called

2013-10-19 19:45:35 -04:00

kallsyms.c

kernel/kallsyms.c: fix %pB when there's no symbol at the address

2014-08-08 15:57:18 -07:00

kcmp.c

…

Kconfig.freezer

…

Kconfig.hz

kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS

2013-11-15 09:32:22 +09:00

Kconfig.locks

locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER

2014-07-16 14:57:13 +02:00

Kconfig.preempt

…

kexec.c

kexec: verify the signature of signed PE bzImage

2014-08-08 15:57:33 -07:00

kmod.c

signals: change wait_for_helper() to use kernel_sigaction()

2014-06-06 16:08:12 -07:00

kprobes.c

kprobes: Skip kretprobe hit in NMI context to avoid deadlock

2014-08-08 10:38:04 +02:00

ksysfs.c

kobject: Make support for uevent_helper optional.

2014-04-25 12:00:49 -07:00

kthread.c

kthread_work: wake up worker only when the worker is idle

2014-07-28 14:07:52 -04:00

latencytop.c

kernel/latencytop.c: convert seq_printf to seq_puts

2014-06-04 16:54:15 -07:00

Makefile

bin2c: move bin2c in scripts/basic

2014-08-08 15:57:32 -07:00

module_signing.c

keys: change asymmetric keys to use common hash definitions

2013-10-25 17:15:18 -04:00

module-internal.h

KEYS: Separate the kernel signature checking keyring from module signing

2013-09-25 17:17:01 +01:00

module.c

module: Clean up ro/nx after early module load failures

2014-08-16 04:47:00 +09:30

notifier.c

kprobes, notifier: Use NOKPROBE_SYMBOL macro in notifier

2014-04-24 10:26:39 +02:00

nsproxy.c

namespaces: Use task_lock and not rcu to protect nsproxy

2014-07-29 18:08:50 -07:00

padata.c

padata: Fix wrong usage of rcu_dereference()

2013-12-05 21:28:42 +08:00

panic.c

panic: add TAINT_SOFTLOCKUP

2014-08-08 15:57:24 -07:00

params.c

Add module param type 'ullong'

2014-07-17 22:07:37 +02:00

pid_namespace.c

pid_namespace: pidns_get() should check task_active_pid_ns() != NULL

2014-04-02 16:20:21 -07:00

pid.c

pidns: fix free_pid() to handle the first fork failure

2013-09-30 14:31:03 -07:00

profile.c

kernel/profile.c: use static const char instead of static char

2014-06-06 16:08:13 -07:00

ptrace.c

sched: Remove proliferation of wait_on_bit() action functions

2014-07-16 15:10:39 +02:00

range.c

…

reboot.c

kernel/reboot.c: convert simple_strtoul to kstrtoint

2014-06-04 16:54:15 -07:00

relay.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2014-04-12 14:49:50 -07:00

res_counter.c

kernel/res_counter.c: replace simple_strtoull by kstrtoull

2014-06-04 16:54:15 -07:00

resource.c

resource: provide new functions to walk through resources

2014-08-08 15:57:32 -07:00

seccomp.c

seccomp: Replace BUG(!spin_is_locked()) with assert_spin_lock

2014-08-11 13:29:12 -07:00

signal.c

Merge branch 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc

2014-08-09 09:58:12 -07:00

smp.c

kernel/smp.c:on_each_cpu_cond(): fix warning in fallback path

2014-08-06 18:01:22 -07:00

smpboot.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

smpboot.h

…

softirq.c

Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

2014-05-22 11:36:10 +02:00

stacktrace.c

…

stop_machine.c

kernel/stop_machine.c: kernel-doc warning fix

2014-06-04 16:54:15 -07:00

sys_ni.c

kexec: new syscall kexec_file_load() declaration

2014-08-08 15:57:32 -07:00

sys.c

sched: move no_new_privs into new atomic flags

2014-07-18 12:13:38 -07:00

sysctl_binary.c

ipv6: Allow accepting RA from local IP addresses.

2014-07-01 12:16:24 -07:00

sysctl.c

mm, hugetlb: remove hugetlb_zero and hugetlb_infinity

2014-08-06 18:01:19 -07:00

system_certificates.S

KEYS: correct alignment of system_certificate_list content in assembly file

2013-12-10 18:25:28 +00:00

system_keyring.c

KEYS: validate certificate trust only with builtin keys

2014-07-17 09:35:17 -04:00

task_work.c

task_work: documentation

2013-09-11 15:58:27 -07:00

taskstats.c

genetlink: only pass array to genl_register_family_with_ops()

2013-11-19 16:39:05 -05:00

test_kprobes.c

kernel/test_kprobes.c: use current logging functions

2014-08-08 15:57:18 -07:00

torture.c

torture: Avoid format string leak to thead name

2014-07-07 10:12:56 -07:00

tracepoint.c

tracing: syscall_regfunc() should not skip kernel threads

2014-06-21 00:15:26 -04:00

tsacct.c

sched: Make task->start_time nanoseconds based

2014-07-23 10:18:05 -07:00

uid16.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

up.c

smp: Rename __smp_call_function_single() to smp_call_function_single_async()

2014-02-24 14:47:15 -08:00

user_namespace.c

proc: constify seq_operations

2014-08-08 15:57:22 -07:00

user-return-notifier.c

…

user.c

kernel/user.c: drop unused field 'files' from user_struct

2014-06-04 16:54:16 -07:00

utsname_sysctl.c

sysctl: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:16 -07:00

utsname.c

namespaces: Use task_lock and not rcu to protect nsproxy

2014-07-29 18:08:50 -07:00

watchdog.c

panic: add TAINT_SOFTLOCKUP

2014-08-08 15:57:24 -07:00

workqueue_internal.h

workqueue: rename manager_mutex to attach_mutex

2014-05-20 10:59:32 -04:00

workqueue.c

Merge branch 'for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

2014-08-04 10:09:27 -07:00