Waiman Long aff7385b5a locking/mutexes/mcs: Correct barrier usage ... This patch corrects the way memory barriers are used in the MCS lock with smp_load_acquire and smp_store_release fucnctions. The previous barriers could leak critical sections if mcs lock is used by itself. It is not a problem when mcs lock is embedded in mutex but will be an issue when the mcs_lock is used elsewhere. The patch removes the incorrect barriers and put in correct barriers with the pair of functions smp_load_acquire and smp_store_release. Suggested-by: Michel Lespinasse <walken@google.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Waiman Long <Waiman.Long@hp.com> Signed-off-by: Jason Low <jason.low2@hp.com> Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1390347353.3138.62.camel@schen9-DESK Signed-off-by: Ingo Molnar <mingo@kernel.org>		2014-01-28 13:13:26 +01:00
..
cpu	sched/preempt: Fix up missed PREEMPT_NEED_RESCHED folding	2014-01-13 17:38:55 +01:00
debug	kgdb/kdb: Fix no KDB config problem	2014-01-25 08:55:09 +01:00
events	Merge branch 'perf/urgent' into perf/core	2014-01-16 09:33:30 +01:00
gcov	gcov: reuse kbasename helper	2013-11-13 12:09:34 +09:00
irq	Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-12-02 10:15:39 -08:00
locking	locking/mutexes/mcs: Correct barrier usage	2014-01-28 13:13:26 +01:00
power	PM / sleep: Fix memory leak in pm_vt_switch_unregister().	2013-12-22 00:56:35 +01:00
printk	printk.c: comments should refer to /proc/vmcore instead of /proc/vmcoreinfo	2013-11-13 12:09:14 +09:00
rcu	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-01-20 10:25:12 -08:00
sched	sched: Fix __sched_setscheduler() nice test	2014-01-16 18:07:08 +01:00
time	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-01-20 11:34:26 -08:00
trace	sched/clock, x86: Use a static_key for sched_clock_stable	2014-01-13 15:13:13 +01:00
.gitignore	Ignore generated file kernel/x509_certificate_list	2013-12-10 18:21:34 +00:00
acct.c
async.c
audit_tree.c
audit_watch.c
audit.c	Merge git://git.infradead.org/users/eparis/audit	2013-11-21 19:18:14 -08:00
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c	mm: do not allocate page->ptl dynamically, if spinlock_t fits to long	2013-12-20 12:25:45 -08:00
capability.c
cgroup_freezer.c
cgroup.c	cgroup: don't recycle cgroup id until all csses' have been destroyed	2013-12-17 08:11:52 -05:00
compat.c
configs.c
context_tracking.c	context_tracking: Wrap static key check into more intuitive function name	2013-12-02 20:43:14 +01:00
cpu_pm.c
cpu.c	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-11-14 16:55:11 +09:00
cpuset.c	cpuset: Fix memory allocator deadlock	2013-11-27 13:52:47 -05:00
crash_dump.c
cred.c
delayacct.c	kernel/delayacct.c: remove redundant checking in __delayacct_add_tsk()	2013-11-13 12:09:12 +09:00
dma.c
elfcore.c	switch elf_core_write_extra_phdrs() to dump_emit()	2013-11-09 00:16:23 -05:00
exec_domain.c
exit.c
extable.c	kernel/extable: fix address-checks for core_kernel and init areas	2013-11-28 09:49:41 -08:00
fork.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-01-20 10:42:08 -08:00
freezer.c	libata, freezer: avoid block device removal while system is frozen	2013-12-19 13:50:32 -05:00
futex_compat.c
futex.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-01-20 10:42:08 -08:00
groups.c
hrtimer.c	sched/deadline: Add SCHED_DEADLINE structures & implementation	2014-01-13 13:41:06 +01:00
hung_task.c	hung_task: Display every hung task warning	2014-01-25 12:13:33 +01:00
irq_work.c
itimer.c
jump_label.c
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz	kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS	2013-11-15 09:32:22 +09:00
Kconfig.locks
Kconfig.preempt
kexec.c	kexec: migrate to reboot cpu	2013-12-18 19:04:50 -08:00
kmod.c
kprobes.c	kprobes: use KSYM_NAME_LEN to size identifier buffers	2013-11-13 12:09:26 +09:00
ksysfs.c
kthread.c	kthread: make kthread_create() killable	2013-11-13 12:08:59 +09:00
latencytop.c
Makefile	KEYS: Remove files generated when SYSTEM_TRUSTED_KEYRING=y	2013-12-13 15:59:11 +00:00
module_signing.c
module-internal.h
module.c	Mainly boring here, too. rmmod --wait finally removed, though.	2013-11-15 13:27:50 +09:00
notifier.c
nsproxy.c
padata.c
panic.c	panic: Make panic_timeout configurable	2013-11-26 12:12:26 +01:00
params.c
pid_namespace.c
pid.c
posix-cpu-timers.c	posix-timers: Convert abuses of BUG_ON to WARN_ON	2013-12-09 16:56:29 +01:00
posix-timers.c
profile.c
ptrace.c	exec/ptrace: fix get_dumpable() incorrect tests	2013-11-13 12:09:33 +09:00
range.c
reboot.c	kexec: migrate to reboot cpu	2013-12-18 19:04:50 -08:00
relay.c
res_counter.c
resource.c
seccomp.c
signal.c	constify copy_siginfo_to_user{,32}()	2013-11-09 00:16:29 -05:00
smp.c	kernel: fix generic_exec_single indentation	2013-11-15 09:32:22 +09:00
smpboot.c
smpboot.h
softirq.c	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-01-20 11:34:26 -08:00
stacktrace.c
stop_machine.c	stop_machine: Fix race between stop_two_cpus() and stop_cpus()	2013-11-11 12:43:38 +01:00
sys_ni.c
sys.c	kernel/sys.c: remove obsolete #include <linux/kexec.h>	2013-11-13 12:09:13 +09:00
sysctl_binary.c	kernel/sysctl_binary.c: use scnprintf() instead of snprintf()	2013-11-13 12:09:33 +09:00
sysctl.c	hung_task: Display every hung task warning	2014-01-25 12:13:33 +01:00
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: correct alignment of system_certificate_list content in assembly file	2013-12-10 18:25:28 +00:00
task_work.c
taskstats.c	genetlink: only pass array to genl_register_family_with_ops()	2013-11-19 16:39:05 -05:00
test_kprobes.c
time.c
timeconst.bc
timer.c	timer: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)	2013-11-19 14:59:50 +01:00
tracepoint.c
tsacct.c
uid16.c
up.c	kernel: provide a __smp_call_function_single stub for !CONFIG_SMP	2013-11-15 09:32:22 +09:00
user_namespace.c
user-return-notifier.c
user.c	KEYS: fix uninitialized persistent_keyring_register_sem	2013-12-13 15:59:11 +00:00
utsname_sysctl.c
utsname.c
watchdog.c
workqueue_internal.h
workqueue.c	PCI updates for v3.13:	2013-12-15 11:45:27 -08:00