liu chuansheng 5c53d819c7 printk: replacing the raw_spin_lock/unlock with raw_spin_lock/unlock_irq ... In function devkmsg_read/writev/llseek/poll/open()..., the function raw_spin_lock/unlock is used, there is potential deadlock case happening. CPU1: thread1 doing the cat /dev/kmsg: raw_spin_lock(&logbuf_lock); while (user->seq == log_next_seq) { when thread1 run here, at this time one interrupt is coming on CPU1 and running based on this thread,if the interrupt handle called the printk which need the logbuf_lock spin also, it will cause deadlock. So we should use raw_spin_lock/unlock_irq here. Acked-by: Kay Sievers <kay@vrfy.org> Signed-off-by: liu chuansheng <chuansheng.liu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2012-07-06 09:50:08 -07:00
..
debug
events	perf: Use css_tryget() to avoid propping up css refcount	2012-06-18 11:45:57 +02:00
gcov
irq	Merge branches 'irq-urgent-for-linus' and 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-06-04 11:36:51 -07:00
power	PM / Hibernate: Use get_gendisk to verify partition if resume_file is integer format	2012-05-18 20:44:59 +02:00
sched	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-06-08 14:59:29 -07:00
time	Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-06-15 16:52:35 -07:00
trace	tracing: Have tracing_off() actually turn tracing off	2012-06-06 22:15:14 -04:00
.gitignore
acct.c
async.c
audit_tree.c
audit_watch.c
audit.c
audit.h
auditfilter.c
auditsc.c
backtracetest.c
bounds.c
capability.c	userns: Teach inode_capable to understand inodes whose uids map to other namespaces.	2012-05-15 14:59:24 -07:00
cgroup_freezer.c
cgroup.c	cgroups: Account for CSS_DEACT_BIAS in __css_put	2012-06-18 15:38:02 -07:00
compat.c	new helper: sigsuspend()	2012-05-21 23:52:30 -04:00
configs.c
cpu_pm.c	kernel/cpu_pm.c: fix various typos	2012-05-31 17:49:27 -07:00
cpu.c	kernel/cpu.c: document clear_tasks_mm_cpumask()	2012-05-31 17:49:30 -07:00
cpuset.c	Merge branch 'for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2012-05-22 17:40:19 -07:00
crash_dump.c
cred.c	keys: kill task_struct->replacement_session_keyring	2012-05-23 22:11:41 -04:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	pidns: find_new_reaper() can no longer switch to init_pid_ns.child_reaper	2012-06-20 14:39:36 -07:00
extable.c
fork.c	Revert "mm: correctly synchronize rss-counters at exit/exec"	2012-06-07 17:54:07 -07:00
freezer.c
futex_compat.c
futex.c
groups.c
hrtimer.c
hung_task.c
irq_work.c
itimer.c
jump_label.c
kallsyms.c	vsprintf: fix %ps on non symbols when using kallsyms	2012-05-29 16:22:32 -07:00
kcmp.c	syscalls, x86: add __NR_kcmp syscall	2012-05-31 17:49:32 -07:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kexec.c
kfifo.c
kmod.c	kmod.c: fix kernel-doc warning	2012-05-31 17:49:28 -07:00
kprobes.c
ksysfs.c
kthread.c
latencytop.c
lglock.c	brlocks/lglocks: turn into functions	2012-05-29 23:28:41 -04:00
lockdep_internals.h
lockdep_proc.c
lockdep_states.h
lockdep.c
Makefile	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-06-01 10:34:35 -07:00
module.c	Guard check in module loader against integer overflow	2012-05-23 22:28:53 +09:30
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
notifier.c
nsproxy.c
padata.c
panic.c	kdump: Execute kmsg_dump(KMSG_DUMP_PANIC) after smp_send_stop()	2012-05-18 14:02:10 +02:00
params.c
pid_namespace.c	pidns: guarantee that the pidns init will be the last pidns process reaped	2012-06-20 14:39:36 -07:00
pid.c	mm: add a low limit to alloc_large_system_hash	2012-05-24 00:28:21 -04:00
posix-cpu-timers.c
posix-timers.c
printk.c	printk: replacing the raw_spin_lock/unlock with raw_spin_lock/unlock_irq	2012-07-06 09:50:08 -07:00
profile.c
ptrace.c
range.c
rcu.h
rcupdate.c
rcutiny_plugin.h
rcutiny.c
rcutorture.c
rcutree_plugin.h	rcu: Precompute RCU_FAST_NO_HZ timer offsets	2012-06-06 20:43:28 -07:00
rcutree_trace.c
rcutree.c	rcu: Stop rcu_do_batch() from multiplexing the "count" variable	2012-06-25 12:35:25 -07:00
rcutree.h	rcu: Move RCU_FAST_NO_HZ per-CPU variables to rcu_dynticks structure	2012-06-06 20:43:28 -07:00
relay.c
res_counter.c	rescounters: add res_counter_uncharge_until()	2012-05-29 16:22:27 -07:00
resource.c	kernel/resource.c: correct the comment of allocate_resource()	2012-05-31 17:49:26 -07:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c
seccomp.c
semaphore.c
signal.c	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
smp.c
smpboot.c	smpboot, idle: Fix comment mismatch over idle_threads_init()	2012-05-24 22:58:08 +02:00
smpboot.h
softirq.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c	syscalls, x86: add __NR_kcmp syscall	2012-05-31 17:49:32 -07:00
sys.c	c/r: prctl: Move PR_GET_TID_ADDRESS to a proper place	2012-06-20 14:39:36 -07:00
sysctl_binary.c
sysctl.c
task_work.c	task_work_add: generic process-context callbacks	2012-05-23 22:09:21 -04:00
taskstats.c
test_kprobes.c
time.c
timeconst.pl
timer.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace	2012-05-23 17:42:39 -07:00
tracepoint.c
tsacct.c
uid16.c
up.c
user_namespace.c
user-return-notifier.c
user.c	userns: Silence silly gcc warning.	2012-05-19 15:44:40 -06:00
utsname_sysctl.c
utsname.c
wait.c
watchdog.c	watchdog: Quiet down the boot messages	2012-06-14 12:20:50 +02:00
workqueue_sched.h
workqueue.c	lockdep: fix oops in processing workqueue	2012-05-15 08:08:31 -07:00