locking: Convert __raw_spin* functions to arch_spin*

Name space cleanup. No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: linux-arch@vger.kernel.org

kernel/lockdep.c

@@ -77,7 +77,7 @@ static arch_spinlock_t lockdep_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED
 
 static int graph_lock(void)
 {
-	__raw_spin_lock(&lockdep_lock);
+	arch_spin_lock(&lockdep_lock);
 	/*
 	 * Make sure that if another CPU detected a bug while
 	 * walking the graph we dont change it (while the other
@@ -85,7 +85,7 @@ static int graph_lock(void)
 	 * dropped already)
 	 */
 	if (!debug_locks) {
-		__raw_spin_unlock(&lockdep_lock);
+		arch_spin_unlock(&lockdep_lock);
 		return 0;
 	}
 	/* prevent any recursions within lockdep from causing deadlocks */
@@ -95,11 +95,11 @@ static int graph_lock(void)
 
 static inline int graph_unlock(void)
 {
-	if (debug_locks && !__raw_spin_is_locked(&lockdep_lock))
+	if (debug_locks && !arch_spin_is_locked(&lockdep_lock))
 		return DEBUG_LOCKS_WARN_ON(1);
 
 	current->lockdep_recursion--;
-	__raw_spin_unlock(&lockdep_lock);
+	arch_spin_unlock(&lockdep_lock);
 	return 0;
 }
 
@@ -111,7 +111,7 @@ static inline int debug_locks_off_graph_unlock(void)
 {
 	int ret = debug_locks_off();
 
-	__raw_spin_unlock(&lockdep_lock);
+	arch_spin_unlock(&lockdep_lock);
 
 	return ret;
 }
@@ -1170,9 +1170,9 @@ unsigned long lockdep_count_forward_deps(struct lock_class *class)
 	this.class = class;
 
 	local_irq_save(flags);
-	__raw_spin_lock(&lockdep_lock);
+	arch_spin_lock(&lockdep_lock);
 	ret = __lockdep_count_forward_deps(&this);
-	__raw_spin_unlock(&lockdep_lock);
+	arch_spin_unlock(&lockdep_lock);
 	local_irq_restore(flags);
 
 	return ret;
@@ -1197,9 +1197,9 @@ unsigned long lockdep_count_backward_deps(struct lock_class *class)
 	this.class = class;
 
 	local_irq_save(flags);
-	__raw_spin_lock(&lockdep_lock);
+	arch_spin_lock(&lockdep_lock);
 	ret = __lockdep_count_backward_deps(&this);
-	__raw_spin_unlock(&lockdep_lock);
+	arch_spin_unlock(&lockdep_lock);
 	local_irq_restore(flags);
 
 	return ret;

kernel/mutex-debug.h

@@ -43,13 +43,13 @@ static inline void mutex_clear_owner(struct mutex *lock)
 							\
 		DEBUG_LOCKS_WARN_ON(in_interrupt());	\
 		local_irq_save(flags);			\
-		__raw_spin_lock(&(lock)->raw_lock);	\
+		arch_spin_lock(&(lock)->raw_lock);	\
 		DEBUG_LOCKS_WARN_ON(l->magic != l);	\
 	} while (0)
 
 #define spin_unlock_mutex(lock, flags)			\
 	do {						\
-		__raw_spin_unlock(&(lock)->raw_lock);	\
+		arch_spin_unlock(&(lock)->raw_lock);	\
 		local_irq_restore(flags);		\
 		preempt_check_resched();		\
 	} while (0)

kernel/spinlock.c

@@ -53,7 +53,7 @@ void __lockfunc __##op##_lock(locktype##_t *lock)			\
 		if (!(lock)->break_lock)				\
 			(lock)->break_lock = 1;				\
 		while (!op##_can_lock(lock) && (lock)->break_lock)	\
-			_raw_##op##_relax(&lock->raw_lock);		\
+			arch_##op##_relax(&lock->raw_lock);		\
 	}								\
 	(lock)->break_lock = 0;						\
 }									\
@@ -73,7 +73,7 @@ unsigned long __lockfunc __##op##_lock_irqsave(locktype##_t *lock)	\
 		if (!(lock)->break_lock)				\
 			(lock)->break_lock = 1;				\
 		while (!op##_can_lock(lock) && (lock)->break_lock)	\
-			_raw_##op##_relax(&lock->raw_lock);		\
+			arch_##op##_relax(&lock->raw_lock);		\
 	}								\
 	(lock)->break_lock = 0;						\
 	return flags;							\

kernel/trace/ring_buffer.c

@@ -2834,7 +2834,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
 	int ret;
 
 	local_irq_save(flags);
-	__raw_spin_lock(&cpu_buffer->lock);
+	arch_spin_lock(&cpu_buffer->lock);
 
  again:
 	/*
@@ -2923,7 +2923,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
 	goto again;
 
  out:
-	__raw_spin_unlock(&cpu_buffer->lock);
+	arch_spin_unlock(&cpu_buffer->lock);
 	local_irq_restore(flags);
 
 	return reader;
@@ -3286,9 +3286,9 @@ ring_buffer_read_start(struct ring_buffer *buffer, int cpu)
 	synchronize_sched();
 
 	spin_lock_irqsave(&cpu_buffer->reader_lock, flags);
-	__raw_spin_lock(&cpu_buffer->lock);
+	arch_spin_lock(&cpu_buffer->lock);
 	rb_iter_reset(iter);
-	__raw_spin_unlock(&cpu_buffer->lock);
+	arch_spin_unlock(&cpu_buffer->lock);
 	spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags);
 
 	return iter;
@@ -3408,11 +3408,11 @@ void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu)
 	if (RB_WARN_ON(cpu_buffer, local_read(&cpu_buffer->committing)))
 		goto out;
 
-	__raw_spin_lock(&cpu_buffer->lock);
+	arch_spin_lock(&cpu_buffer->lock);
 
 	rb_reset_cpu(cpu_buffer);
 
-	__raw_spin_unlock(&cpu_buffer->lock);
+	arch_spin_unlock(&cpu_buffer->lock);
 
  out:
 	spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags);

kernel/trace/trace.c

@@ -555,13 +555,13 @@ update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
 		return;
 
 	WARN_ON_ONCE(!irqs_disabled());
-	__raw_spin_lock(&ftrace_max_lock);
+	arch_spin_lock(&ftrace_max_lock);
 
 	tr->buffer = max_tr.buffer;
 	max_tr.buffer = buf;
 
 	__update_max_tr(tr, tsk, cpu);
-	__raw_spin_unlock(&ftrace_max_lock);
+	arch_spin_unlock(&ftrace_max_lock);
 }
 
 /**
@@ -581,7 +581,7 @@ update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu)
 		return;
 
 	WARN_ON_ONCE(!irqs_disabled());
-	__raw_spin_lock(&ftrace_max_lock);
+	arch_spin_lock(&ftrace_max_lock);
 
 	ftrace_disable_cpu();
 
@@ -603,7 +603,7 @@ update_max_tr_single(struct trace_array *tr, struct task_struct *tsk, int cpu)
 	WARN_ON_ONCE(ret && ret != -EAGAIN && ret != -EBUSY);
 
 	__update_max_tr(tr, tsk, cpu);
-	__raw_spin_unlock(&ftrace_max_lock);
+	arch_spin_unlock(&ftrace_max_lock);
 }
 #endif /* CONFIG_TRACER_MAX_TRACE */
 
@@ -915,7 +915,7 @@ static void trace_save_cmdline(struct task_struct *tsk)
 	 * nor do we want to disable interrupts,
 	 * so if we miss here, then better luck next time.
 	 */
-	if (!__raw_spin_trylock(&trace_cmdline_lock))
+	if (!arch_spin_trylock(&trace_cmdline_lock))
 		return;
 
 	idx = map_pid_to_cmdline[tsk->pid];
@@ -940,7 +940,7 @@ static void trace_save_cmdline(struct task_struct *tsk)
 
 	memcpy(&saved_cmdlines[idx], tsk->comm, TASK_COMM_LEN);
 
-	__raw_spin_unlock(&trace_cmdline_lock);
+	arch_spin_unlock(&trace_cmdline_lock);
 }
 
 void trace_find_cmdline(int pid, char comm[])
@@ -958,14 +958,14 @@ void trace_find_cmdline(int pid, char comm[])
 	}
 
 	preempt_disable();
-	__raw_spin_lock(&trace_cmdline_lock);
+	arch_spin_lock(&trace_cmdline_lock);
 	map = map_pid_to_cmdline[pid];
 	if (map != NO_CMDLINE_MAP)
 		strcpy(comm, saved_cmdlines[map]);
 	else
 		strcpy(comm, "<...>");
 
-	__raw_spin_unlock(&trace_cmdline_lock);
+	arch_spin_unlock(&trace_cmdline_lock);
 	preempt_enable();
 }
 
@@ -1283,7 +1283,7 @@ int trace_vbprintk(unsigned long ip, const char *fmt, va_list args)
 
 	/* Lockdep uses trace_printk for lock tracing */
 	local_irq_save(flags);
-	__raw_spin_lock(&trace_buf_lock);
+	arch_spin_lock(&trace_buf_lock);
 	len = vbin_printf(trace_buf, TRACE_BUF_SIZE, fmt, args);
 
 	if (len > TRACE_BUF_SIZE || len < 0)
@@ -1304,7 +1304,7 @@ int trace_vbprintk(unsigned long ip, const char *fmt, va_list args)
 		ring_buffer_unlock_commit(buffer, event);
 
 out_unlock:
-	__raw_spin_unlock(&trace_buf_lock);
+	arch_spin_unlock(&trace_buf_lock);
 	local_irq_restore(flags);
 
 out:
@@ -1360,7 +1360,7 @@ int trace_array_vprintk(struct trace_array *tr,
 
 	pause_graph_tracing();
 	raw_local_irq_save(irq_flags);
-	__raw_spin_lock(&trace_buf_lock);
+	arch_spin_lock(&trace_buf_lock);
 	len = vsnprintf(trace_buf, TRACE_BUF_SIZE, fmt, args);
 
 	size = sizeof(*entry) + len + 1;
@@ -1378,7 +1378,7 @@ int trace_array_vprintk(struct trace_array *tr,
 		ring_buffer_unlock_commit(buffer, event);
 
  out_unlock:
-	__raw_spin_unlock(&trace_buf_lock);
+	arch_spin_unlock(&trace_buf_lock);
 	raw_local_irq_restore(irq_flags);
 	unpause_graph_tracing();
  out:
@@ -2279,7 +2279,7 @@ tracing_cpumask_write(struct file *filp, const char __user *ubuf,
 	mutex_lock(&tracing_cpumask_update_lock);
 
 	local_irq_disable();
-	__raw_spin_lock(&ftrace_max_lock);
+	arch_spin_lock(&ftrace_max_lock);
 	for_each_tracing_cpu(cpu) {
 		/*
 		 * Increase/decrease the disabled counter if we are
@@ -2294,7 +2294,7 @@ tracing_cpumask_write(struct file *filp, const char __user *ubuf,
 			atomic_dec(&global_trace.data[cpu]->disabled);
 		}
 	}
-	__raw_spin_unlock(&ftrace_max_lock);
+	arch_spin_unlock(&ftrace_max_lock);
 	local_irq_enable();
 
 	cpumask_copy(tracing_cpumask, tracing_cpumask_new);
@@ -4318,7 +4318,7 @@ static void __ftrace_dump(bool disable_tracing)
 
 	/* only one dump */
 	local_irq_save(flags);
-	__raw_spin_lock(&ftrace_dump_lock);
+	arch_spin_lock(&ftrace_dump_lock);
 	if (dump_ran)
 		goto out;
 
@@ -4393,7 +4393,7 @@ static void __ftrace_dump(bool disable_tracing)
 	}
 
  out:
-	__raw_spin_unlock(&ftrace_dump_lock);
+	arch_spin_unlock(&ftrace_dump_lock);
 	local_irq_restore(flags);
 }
 

kernel/trace/trace_clock.c

@@ -94,7 +94,7 @@ u64 notrace trace_clock_global(void)
 	if (unlikely(in_nmi()))
 		goto out;
 
-	__raw_spin_lock(&trace_clock_struct.lock);
+	arch_spin_lock(&trace_clock_struct.lock);
 
 	/*
 	 * TODO: if this happens often then maybe we should reset
@@ -106,7 +106,7 @@ u64 notrace trace_clock_global(void)
 
 	trace_clock_struct.prev_time = now;
 
-	__raw_spin_unlock(&trace_clock_struct.lock);
+	arch_spin_unlock(&trace_clock_struct.lock);
 
  out:
 	raw_local_irq_restore(flags);

kernel/trace/trace_sched_wakeup.c

@@ -143,7 +143,7 @@ probe_wakeup_sched_switch(struct rq *rq, struct task_struct *prev,
 		goto out;
 
 	local_irq_save(flags);
-	__raw_spin_lock(&wakeup_lock);
+	arch_spin_lock(&wakeup_lock);
 
 	/* We could race with grabbing wakeup_lock */
 	if (unlikely(!tracer_enabled || next != wakeup_task))
@@ -169,7 +169,7 @@ probe_wakeup_sched_switch(struct rq *rq, struct task_struct *prev,
 
 out_unlock:
 	__wakeup_reset(wakeup_trace);
-	__raw_spin_unlock(&wakeup_lock);
+	arch_spin_unlock(&wakeup_lock);
 	local_irq_restore(flags);
 out:
 	atomic_dec(&wakeup_trace->data[cpu]->disabled);
@@ -193,9 +193,9 @@ static void wakeup_reset(struct trace_array *tr)
 	tracing_reset_online_cpus(tr);
 
 	local_irq_save(flags);
-	__raw_spin_lock(&wakeup_lock);
+	arch_spin_lock(&wakeup_lock);
 	__wakeup_reset(tr);
-	__raw_spin_unlock(&wakeup_lock);
+	arch_spin_unlock(&wakeup_lock);
 	local_irq_restore(flags);
 }
 
@@ -225,7 +225,7 @@ probe_wakeup(struct rq *rq, struct task_struct *p, int success)
 		goto out;
 
 	/* interrupts should be off from try_to_wake_up */
-	__raw_spin_lock(&wakeup_lock);
+	arch_spin_lock(&wakeup_lock);
 
 	/* check for races. */
 	if (!tracer_enabled || p->prio >= wakeup_prio)
@@ -255,7 +255,7 @@ probe_wakeup(struct rq *rq, struct task_struct *p, int success)
 	trace_function(wakeup_trace, CALLER_ADDR1, CALLER_ADDR2, flags, pc);
 
 out_locked:
-	__raw_spin_unlock(&wakeup_lock);
+	arch_spin_unlock(&wakeup_lock);
 out:
 	atomic_dec(&wakeup_trace->data[cpu]->disabled);
 }

kernel/trace/trace_selftest.c

@@ -67,7 +67,7 @@ static int trace_test_buffer(struct trace_array *tr, unsigned long *count)
 
 	/* Don't allow flipping of max traces now */
 	local_irq_save(flags);
-	__raw_spin_lock(&ftrace_max_lock);
+	arch_spin_lock(&ftrace_max_lock);
 
 	cnt = ring_buffer_entries(tr->buffer);
 
@@ -85,7 +85,7 @@ static int trace_test_buffer(struct trace_array *tr, unsigned long *count)
 			break;
 	}
 	tracing_on();
-	__raw_spin_unlock(&ftrace_max_lock);
+	arch_spin_unlock(&ftrace_max_lock);
 	local_irq_restore(flags);
 
 	if (count)

kernel/trace/trace_stack.c

@@ -54,7 +54,7 @@ static inline void check_stack(void)
 		return;
 
 	local_irq_save(flags);
-	__raw_spin_lock(&max_stack_lock);
+	arch_spin_lock(&max_stack_lock);
 
 	/* a race could have already updated it */
 	if (this_size <= max_stack_size)
@@ -103,7 +103,7 @@ static inline void check_stack(void)
 	}
 
  out:
-	__raw_spin_unlock(&max_stack_lock);
+	arch_spin_unlock(&max_stack_lock);
 	local_irq_restore(flags);
 }
 
@@ -171,9 +171,9 @@ stack_max_size_write(struct file *filp, const char __user *ubuf,
 		return ret;
 
 	local_irq_save(flags);
-	__raw_spin_lock(&max_stack_lock);
+	arch_spin_lock(&max_stack_lock);
 	*ptr = val;
-	__raw_spin_unlock(&max_stack_lock);
+	arch_spin_unlock(&max_stack_lock);
 	local_irq_restore(flags);
 
 	return count;
@@ -207,7 +207,7 @@ t_next(struct seq_file *m, void *v, loff_t *pos)
 static void *t_start(struct seq_file *m, loff_t *pos)
 {
 	local_irq_disable();
-	__raw_spin_lock(&max_stack_lock);
+	arch_spin_lock(&max_stack_lock);
 
 	if (*pos == 0)
 		return SEQ_START_TOKEN;
@@ -217,7 +217,7 @@ static void *t_start(struct seq_file *m, loff_t *pos)
 
 static void t_stop(struct seq_file *m, void *p)
 {
-	__raw_spin_unlock(&max_stack_lock);
+	arch_spin_unlock(&max_stack_lock);
 	local_irq_enable();
 }