Jason Baron 91bad2f8d3 jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex ...

register_kprobe() downs the 'text_mutex' and then calls
jump_label_text_reserved(), which downs the 'jump_label_mutex'.
However, the jump label code takes those mutexes in the reverse
order.

Fix by requiring the caller of jump_label_text_reserved() to do
the jump label locking via the newly added: jump_label_lock(),
jump_label_unlock(). Currently, kprobes is the only user
of jump_label_text_reserved().

Reported-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
LKML-Reference: <759032c48d5e30c27f0bba003d09bffa8e9f28bb.1285965957.git.jbaron@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

2010-10-28 09:17:40 -04:00

..

debug

kdb,debug_core: adjust master cpu switch logic against new debug_core locking

2010-10-22 15:34:13 -05:00

gcov

llseek: automatically add .llseek fop

2010-10-15 15:53:27 +02:00

irq

/proc/stat: fix scalability of irq sum of all cpu

2010-10-27 18:03:13 -07:00

power

use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages

2010-10-26 16:52:13 -07:00

time

ntp: Clamp PLL update interval

2010-09-09 20:48:37 +02:00

trace

Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-27 18:48:00 -07:00

.gitignore

…

acct.c

pass a struct path to vfs_statfs

2010-08-09 16:48:42 -04:00

async.c

async: use workqueue for worker pool

2010-07-14 11:29:46 +02:00

audit_tree.c

fanotify: use both marks when possible

2010-07-28 10:18:55 -04:00

audit_watch.c

Revert "fsnotify: store struct file not struct path"

2010-08-12 14:23:04 -07:00

audit.c

Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify

2010-08-10 11:39:13 -07:00

audit.h

Audit: split audit watch Kconfig

2010-07-28 09:58:19 -04:00

auditfilter.c

audit: do not get and put just to free a watch

2010-07-28 09:58:17 -04:00

auditsc.c

vfs: add helpers to get root and pwd

2010-08-11 00:28:20 -04:00

backtracetest.c

…

bounds.c

…

capability.c

sched: Remove remaining USER_SCHED code

2010-04-02 20:12:00 +02:00

cgroup_freezer.c

cgroup_freezer: update_freezer_state() does incorrect state transitions

2010-10-27 18:03:08 -07:00

cgroup.c

cgroups: add check for strcpy destination string overflow

2010-10-27 18:03:09 -07:00

compat.c

compat: Make compat_alloc_user_space() incorporate the access_ok()

2010-09-14 16:08:45 -07:00

configs.c

llseek: automatically add .llseek fop

2010-10-15 15:53:27 +02:00

cpu.c

sched: adjust when cpu_active and cpuset configurations are updated during cpu on/offlining

2010-06-08 21:40:36 +02:00

cpuset.c

security: remove unused parameter from security_task_setscheduler()

2010-10-21 10:12:44 +11:00

cred.c

signals: move cred_guard_mutex from task_struct to signal_struct

2010-10-27 18:03:12 -07:00

delayacct.c

…

dma.c

…

elfcore.c

elf coredump: add extended numbering support

2010-03-06 11:26:46 -08:00

exec_domain.c

sys_personality: remove the bogus checks in sys_personality()->__set_personality() path

2010-08-09 20:45:05 -07:00

exit.c

exit: add lock context annotation on find_new_reaper()

2010-10-27 18:03:13 -07:00

extable.c

…

fork.c

signals: move cred_guard_mutex from task_struct to signal_struct

2010-10-27 18:03:12 -07:00

freezer.c

…

futex_compat.c

futex: Change 3rd arg of fetch_robust_entry() to unsigned int*

2010-09-18 12:19:21 +02:00

futex.c

new helper: ihold()

2010-10-25 21:26:11 -04:00

groups.c

kernel/groups.c: fix integer overflow in groups_search

2010-09-09 18:57:24 -07:00

hrtimer.c

hrtimer: Preserve timer state in remove_hrtimer()

2010-10-14 13:29:59 +02:00

hung_task.c

lockup detector: Fix grammar by adding a missing "to" in the comments

2010-08-17 09:11:52 +02:00

hw_breakpoint.c

perf, hw_breakpoint: Fix crash in hw_breakpoint creation

2010-10-18 19:58:55 +02:00

irq_work.c

irq_work: Add generic hardirq context callbacks

2010-10-18 19:58:50 +02:00

itimer.c

…

jump_label.c

jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex

2010-10-28 09:17:40 -04:00

kallsyms.c

kdb: core for kgdb back end (2 of 2)

2010-05-20 21:04:21 -05:00

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

…

Kconfig.preempt

…

kexec.c

use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages

2010-10-26 16:52:13 -07:00

kfifo.c

kfifo: fix scatterlist usage

2010-10-01 10:50:58 -07:00

kmod.c

Make do_execve() take a const filename pointer

2010-08-17 18:07:43 -07:00

kprobes.c

jump label: Fix deadlock b/w jump_label_mutex vs. text_mutex

2010-10-28 09:17:40 -04:00

ksysfs.c

sysfs: add struct file* to bin_attr callbacks

2010-05-21 09:37:31 -07:00

kthread.c

kthread: implement kthread_data()

2010-06-29 10:07:09 +02:00

latencytop.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

lockdep_internals.h

lockdep: No need to disable preemption in debug atomic ops

2010-05-04 05:38:16 +02:00

lockdep_proc.c

lockstat: Make lockstat counting per cpu

2010-04-06 00:15:37 +02:00

lockdep_states.h

…

lockdep.c

lockdep: Check the depth of subclass

2010-10-18 18:44:26 +02:00

Makefile

Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-21 18:52:11 -07:00

module.c

(trivial) Fix compiler warning in kernel/modules.c

2010-10-27 20:33:05 +10:30

mutex-debug.c

…

mutex-debug.h

…

mutex.c

mutex: Fix annotations to include it in kernel-locking docbook

2010-09-03 08:19:51 +02:00

mutex.h

…

notifier.c

sched: Use lockdep-based checking on rcu_dereference()

2010-02-25 10:34:26 +01:00

ns_cgroup.c

cgroup: notify ns_cgroup deprecated

2010-10-27 18:03:09 -07:00

nsproxy.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

padata.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2010-08-04 15:23:14 -07:00

panic.c

lib/bug.c: add oops end marker to WARN implementation

2010-08-11 08:59:22 -07:00

params.c

param: locking for kernel parameters

2010-08-11 23:04:20 +09:30

perf_event.c

perf_events: Fix for transaction recovery in group_sched_in()

2010-10-22 14:18:27 +02:00

pid_namespace.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

pid.c

Add RCU check for find_task_by_vpid().

2010-08-19 17:18:02 -07:00

pm_qos_params.c

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2010-10-24 13:41:39 -07:00

posix-cpu-timers.c

Merge branch 'writable_limits' of git://decibel.fi.muni.cz/~xslaby/linux

2010-08-10 12:07:51 -07:00

posix-timers.c

posix_timer: Move copy_to_user(created_timer_id) down in timer_create()

2010-07-23 15:08:12 +02:00

printk.c

printk: change type of 'boot_delay' to int *

2010-10-26 16:52:16 -07:00

profile.c

llseek: automatically add .llseek fop

2010-10-15 15:53:27 +02:00

ptrace.c

signals: move cred_guard_mutex from task_struct to signal_struct

2010-10-27 18:03:12 -07:00

range.c

kernel/range: remove unused definition of ARRAY_SIZE()

2010-08-09 20:45:06 -07:00

rcupdate.c

Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu into core/rcu

2010-10-07 09:43:11 +02:00

rcutiny_plugin.h

rcu: performance fixes to TINY_PREEMPT_RCU callback checking

2010-08-27 10:51:17 -07:00

rcutiny.c

rcu: Add a TINY_PREEMPT_RCU

2010-08-20 08:55:00 -07:00

rcutorture.c

rcu: fix sparse errors in rcutorture.c

2010-09-23 09:16:42 -07:00

rcutree_plugin.h

rcu: fix _oddness handling of verbose stall warnings

2010-09-02 16:15:30 -07:00

rcutree_trace.c

rcu: Add tracing data to support queueing models

2010-09-23 09:16:53 -07:00

rcutree.c

rcu: using ACCESS_ONCE() to observe the jiffies_stall/rnp->qsmask value

2010-10-07 10:41:06 -07:00

rcutree.h

rcu: Add tracing data to support queueing models

2010-09-23 09:16:53 -07:00

relay.c

kernel/: convert cpu notifier to return encapsulate errno value

2010-05-27 09:12:48 -07:00

res_counter.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

resource.c

kernel/resource.c: handle reinsertion of an already-inserted resource

2010-10-27 18:03:18 -07:00

rtmutex_common.h

…

rtmutex-debug.c

…

rtmutex-debug.h

…

rtmutex-tester.c

rtmutex-tester: make it build without BKL

2010-10-19 11:29:56 +02:00

rtmutex.c

…

rtmutex.h

…

rwsem.c

…

sched_clock.c

sched_clock: Add local_clock() API and improve documentation

2010-06-09 10:34:49 +02:00

sched_cpupri.c

sched: No need for bootmem special cases

2010-07-17 12:06:22 +02:00

sched_cpupri.h

sched: No need for bootmem special cases

2010-07-17 12:06:22 +02:00

sched_debug.c

sched: Use correct macro to display sched_child_runs_first in /proc/sched_debug

2010-07-21 21:46:12 +02:00

sched_fair.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-21 12:55:43 -07:00

sched_features.h

sched: Remove irq time from available CPU power

2010-10-18 20:52:27 +02:00

sched_idletask.c

sched: Cure load average vs NO_HZ woes

2010-04-23 11:02:02 +02:00

sched_rt.c

sched: Do not account irq time to current task

2010-10-18 20:52:26 +02:00

sched_stats.h

sched: Remove the obsolete exit_state/signal hacks

2010-06-18 10:46:56 +02:00

sched_stoptask.c

sched: Create special class for stop/migrate work

2010-10-18 18:41:58 +02:00

sched.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-21 12:55:43 -07:00

seccomp.c

…

semaphore.c

…

signal.c

signals: annotate lock context change on ptrace_stop()

2010-10-27 18:03:12 -07:00

smp.c

Typedef SMP call function pointer

2010-10-27 17:28:36 +01:00

softirq.c

Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-27 18:48:00 -07:00

spinlock.c

…

srcu.c

kernel: Remove undead ifdef CONFIG_DEBUG_LOCK_ALLOC

2010-09-23 09:14:51 -07:00

stacktrace.c

…

stop_machine.c

stop_machine: convert cpu notifier to return encapsulate errno value

2010-10-26 16:52:15 -07:00

sys_ni.c

powerpc: define a compat_sys_recv cond_syscall

2010-09-23 17:03:55 +10:00

sys.c

pid: make setpgid() system call use RCU read-side critical section

2010-08-31 17:00:18 -07:00

sysctl_binary.c

sysctl: don't use own implementation of hex_to_bin()

2010-05-25 08:07:05 -07:00

sysctl_check.c

sysctl: min/max bounds are optional

2010-10-15 14:42:24 -07:00

sysctl.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2010-10-26 17:58:44 -07:00

taskstats.c

taskstats: split fill_pid function

2010-10-27 18:03:17 -07:00

test_kprobes.c

kprobes: Fix selftest to clear flags field for reusing probes

2010-10-14 08:55:27 +02:00

time.c

time: Kill off CONFIG_GENERIC_TIME

2010-07-27 12:40:54 +02:00

timeconst.pl

…

timer.c

irq_work: Add generic hardirq context callbacks

2010-10-18 19:58:50 +02:00

tracepoint.c

jump_label: Use more consistent naming

2010-10-18 19:58:56 +02:00

tsacct.c

taskstats: use real microsecond granularity for CPU times

2010-10-27 18:03:17 -07:00

uid16.c

…

up.c

…

user_namespace.c

user_ns: Introduce user_nsmap_uid and user_ns_map_gid.

2010-06-16 14:55:34 -07:00

user-return-notifier.c

…

user.c

kernel/user.c: add lock release annotation on free_user()

2010-10-26 16:52:15 -07:00

utsname_sysctl.c

…

utsname.c

…

wait.c

docbook: add more wait/wake/completion to device-drivers docbook

2010-10-26 17:32:41 -07:00

watchdog.c

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-21 12:54:49 -07:00

workqueue_sched.h

workqueue: implement concurrency managed dynamic worker pool

2010-06-29 10:07:14 +02:00

workqueue.c

workqueues: s/ON_STACK/ONSTACK/

2010-10-26 16:52:14 -07:00