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

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock()
  lockdep: Comment all warnings
  lib: atomic64: Change the type of local lock to raw_spinlock_t
  locking, lib/atomic64: Annotate atomic64_lock::lock as raw
  locking, x86, iommu: Annotate qi->q_lock as raw
  locking, x86, iommu: Annotate irq_2_ir_lock as raw
  locking, x86, iommu: Annotate iommu->register_lock as raw
  locking, dma, ipu: Annotate bank_lock as raw
  locking, ARM: Annotate low level hw locks as raw
  locking, drivers/dca: Annotate dca_lock as raw
  locking, powerpc: Annotate uic->lock as raw
  locking, x86: mce: Annotate cmci_discover_lock as raw
  locking, ACPI: Annotate c3_lock as raw
  locking, oprofile: Annotate oprofilefs lock as raw
  locking, video: Annotate vga console lock as raw
  locking, latencytop: Annotate latency_lock as raw
  locking, timer_stats: Annotate table_lock as raw
  locking, rwsem: Annotate inner lock as raw
  locking, semaphores: Annotate inner lock as raw
  locking, sched: Annotate thread_group_cputimer as raw
  ...

Fix up conflicts in kernel/posix-cpu-timers.c manually: making
cputimer->cputime a raw lock conflicted with the ABBA fix in commit
bcd5cff7216f ("cputimer: Cure lock inversion").

11 files changed, 23 insertions, 21 deletions

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index d14e058aaeed..08ffab01e76c 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -42,7 +42,7 @@ extern struct fs_struct init_fs;
         .cputimer       = {                                             \
                 .cputime = INIT_CPUTIME,                                \
                 .running = 0,                                           \
-                .lock = __SPIN_LOCK_UNLOCKED(sig.cputimer.lock),        \
+                .lock = __RAW_SPIN_LOCK_UNLOCKED(sig.cputimer.lock),    \
         },                                                              \
         .cred_guard_mutex =                                             \
                  __MUTEX_INITIALIZER(sig.cred_guard_mutex),             \
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 235b8879af45..e6ca56de9936 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -271,7 +271,7 @@ struct qi_desc {
 };
 
 struct q_inval {
-        spinlock_t      q_lock;
+        raw_spinlock_t  q_lock;
         struct qi_desc  *desc;          /* invalidation queue */
         int             *desc_status;   /* desc status */
         int             free_head;      /* first free entry */
@@ -311,7 +311,7 @@ struct intel_iommu {
         u64             cap;
         u64             ecap;
         u32             gcmd; /* Holds TE, EAFL. Don't need SRTP, SFL, WBF */
-        spinlock_t      register_lock; /* protect register handling */
+        raw_spinlock_t  register_lock; /* protect register handling */
         int             seq_id; /* sequence id of the iommu */
         int             agaw; /* agaw of this iommu */
         int             msagaw; /* max sagaw of this iommu */
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index dd7c12e875bc..dce6e4dbeda7 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -181,7 +181,7 @@ struct kretprobe {
         int nmissed;
         size_t data_size;
         struct hlist_head free_instances;
-        spinlock_t lock;
+        raw_spinlock_t lock;
 };
 
 struct kretprobe_instance {
diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h
index 49c8727eeb57..a4c562453f6b 100644
--- a/include/linux/oprofile.h
+++ b/include/linux/oprofile.h
@@ -166,7 +166,7 @@ ssize_t oprofilefs_ulong_to_user(unsigned long val, char __user * buf, size_t co
 int oprofilefs_ulong_from_user(unsigned long * val, char const __user * buf, size_t count);
 
 /** lock for read/write safety */
-extern spinlock_t oprofilefs_lock;
+extern raw_spinlock_t oprofilefs_lock;
 
 /**
  * Add the contents of a circular buffer to the event buffer.
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index 5edc9014263a..b9df9ed1adc0 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -16,7 +16,7 @@
 #ifdef CONFIG_SMP
 
 struct percpu_counter {
-        spinlock_t lock;
+        raw_spinlock_t lock;
         s64 count;
 #ifdef CONFIG_HOTPLUG_CPU
         struct list_head list;  /* All percpu_counters are on a list */
diff --git a/include/linux/proportions.h b/include/linux/proportions.h
index cf793bbbd05e..ef35bb73f69b 100644
--- a/include/linux/proportions.h
+++ b/include/linux/proportions.h
@@ -58,7 +58,7 @@ struct prop_local_percpu {
          */
         int shift;
         unsigned long period;
-        spinlock_t lock;                /* protect the snapshot state */
+        raw_spinlock_t lock;            /* protect the snapshot state */
 };
 
 int prop_local_init_percpu(struct prop_local_percpu *pl);
@@ -106,11 +106,11 @@ struct prop_local_single {
          */
         unsigned long period;
         int shift;
-        spinlock_t lock;                /* protect the snapshot state */
+        raw_spinlock_t lock;            /* protect the snapshot state */
 };
 
 #define INIT_PROP_LOCAL_SINGLE(name)                    \
-{       .lock = __SPIN_LOCK_UNLOCKED(name.lock),        \
+{       .lock = __RAW_SPIN_LOCK_UNLOCKED(name.lock),    \
 }
 
 int prop_local_init_single(struct prop_local_single *pl);
diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h
index 2f007157fab9..e11ccb4cf48d 100644
--- a/include/linux/ratelimit.h
+++ b/include/linux/ratelimit.h
@@ -8,7 +8,7 @@
 #define DEFAULT_RATELIMIT_BURST         10
 
 struct ratelimit_state {
-        spinlock_t      lock;           /* protect the state */
+        raw_spinlock_t  lock;           /* protect the state */
 
         int             interval;
         int             burst;
@@ -20,7 +20,7 @@ struct ratelimit_state {
 #define DEFINE_RATELIMIT_STATE(name, interval_init, burst_init)         \
                                                                         \
         struct ratelimit_state name = {                                 \
-                .lock           = __SPIN_LOCK_UNLOCKED(name.lock),      \
+                .lock           = __RAW_SPIN_LOCK_UNLOCKED(name.lock),  \
                 .interval       = interval_init,                        \
                 .burst          = burst_init,                           \
         }
@@ -28,7 +28,7 @@ struct ratelimit_state {
 static inline void ratelimit_state_init(struct ratelimit_state *rs,
                                         int interval, int burst)
 {
-        spin_lock_init(&rs->lock);
+        raw_spin_lock_init(&rs->lock);
         rs->interval = interval;
         rs->burst = burst;
         rs->printed = 0;
diff --git a/include/linux/rwsem-spinlock.h b/include/linux/rwsem-spinlock.h
index 34701241b673..d5b13bc07a0b 100644
--- a/include/linux/rwsem-spinlock.h
+++ b/include/linux/rwsem-spinlock.h
@@ -22,7 +22,7 @@
  */
 struct rw_semaphore {
         __s32                   activity;
-        spinlock_t              wait_lock;
+        raw_spinlock_t          wait_lock;
         struct list_head        wait_list;
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
         struct lockdep_map dep_map;
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 6a6741440cb7..63d406554391 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -25,7 +25,7 @@ struct rw_semaphore;
 /* All arch specific implementations share the same struct */
 struct rw_semaphore {
         long                    count;
-        spinlock_t              wait_lock;
+        raw_spinlock_t          wait_lock;
         struct list_head        wait_list;
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
         struct lockdep_map      dep_map;
@@ -56,9 +56,11 @@ static inline int rwsem_is_locked(struct rw_semaphore *sem)
 # define __RWSEM_DEP_MAP_INIT(lockname)
 #endif
 
-#define __RWSEM_INITIALIZER(name) \
-        { RWSEM_UNLOCKED_VALUE, __SPIN_LOCK_UNLOCKED(name.wait_lock),   \
-          LIST_HEAD_INIT((name).wait_list) __RWSEM_DEP_MAP_INIT(name) }
+#define __RWSEM_INITIALIZER(name)                       \
+        { RWSEM_UNLOCKED_VALUE,                         \
+          __RAW_SPIN_LOCK_UNLOCKED(name.wait_lock),     \
+          LIST_HEAD_INIT((name).wait_list)              \
+          __RWSEM_DEP_MAP_INIT(name) }
 
 #define DECLARE_RWSEM(name) \
         struct rw_semaphore name = __RWSEM_INITIALIZER(name)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 600eb0a6f89a..1be699dd32a5 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -510,7 +510,7 @@ struct task_cputime {
 struct thread_group_cputimer {
         struct task_cputime cputime;
         int running;
-        spinlock_t lock;
+        raw_spinlock_t lock;
 };
 
 #include <linux/rwsem.h>
@@ -2566,7 +2566,7 @@ void thread_group_cputimer(struct task_struct *tsk, struct task_cputime *times);
 
 static inline void thread_group_cputime_init(struct signal_struct *sig)
 {
-        spin_lock_init(&sig->cputimer.lock);
+        raw_spin_lock_init(&sig->cputimer.lock);
 }
 
 /*
diff --git a/include/linux/semaphore.h b/include/linux/semaphore.h
index 39fa04966aa8..dc368b8ce215 100644
--- a/include/linux/semaphore.h
+++ b/include/linux/semaphore.h
@@ -14,14 +14,14 @@
 
 /* Please don't access any members of this structure directly */
 struct semaphore {
-        spinlock_t              lock;
+        raw_spinlock_t          lock;
         unsigned int            count;
         struct list_head        wait_list;
 };
 
 #define __SEMAPHORE_INITIALIZER(name, n)                                \
 {                                                                       \
-        .lock           = __SPIN_LOCK_UNLOCKED((name).lock),            \
+        .lock           = __RAW_SPIN_LOCK_UNLOCKED((name).lock),        \
         .count          = n,                                            \
         .wait_list      = LIST_HEAD_INIT((name).wait_list),             \
 }