Merge commit 'v2.6.28-rc4' into timers/rtc

Conflicts:
	drivers/rtc/rtc-cmos.c

13 files changed, 222 insertions, 188 deletions

diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index ed982273fb8..b55cd23ffde 100644
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -41,7 +41,6 @@ static cpumask_t marked_cpus = CPU_MASK_NONE;
 static DEFINE_SPINLOCK(task_mortuary);
 static void process_task_mortuary(void);
 
-
 /* Take ownership of the task struct and place it on the
  * list for processing. Only after two full buffer syncs
  * does the task eventually get freed, because by then
@@ -341,7 +340,7 @@ static void add_trace_begin(void)
  * Add IBS fetch and op entries to event buffer
  */
 static void add_ibs_begin(struct oprofile_cpu_buffer *cpu_buf, int code,
-	int in_kernel, struct mm_struct *mm)
+			  struct mm_struct *mm)
 {
 	unsigned long rip;
 	int i, count;
@@ -565,9 +564,11 @@ void sync_buffer(int cpu)
 	struct task_struct *new;
 	unsigned long cookie = 0;
 	int in_kernel = 1;
-	unsigned int i;
 	sync_buffer_state state = sb_buffer_start;
+#ifndef CONFIG_OPROFILE_IBS
+	unsigned int i;
 	unsigned long available;
+#endif
 
 	mutex_lock(&buffer_mutex);
 
@@ -575,9 +576,13 @@ void sync_buffer(int cpu)
 
 	/* Remember, only we can modify tail_pos */
 
+#ifndef CONFIG_OPROFILE_IBS
 	available = get_slots(cpu_buf);
 
 	for (i = 0; i < available; ++i) {
+#else
+	while (get_slots(cpu_buf)) {
+#endif
 		struct op_sample *s = &cpu_buf->buffer[cpu_buf->tail_pos];
 
 		if (is_code(s->eip)) {
@@ -593,12 +598,10 @@ void sync_buffer(int cpu)
 #ifdef CONFIG_OPROFILE_IBS
 			} else if (s->event == IBS_FETCH_BEGIN) {
 				state = sb_bt_start;
-				add_ibs_begin(cpu_buf,
-					IBS_FETCH_CODE, in_kernel, mm);
+				add_ibs_begin(cpu_buf, IBS_FETCH_CODE, mm);
 			} else if (s->event == IBS_OP_BEGIN) {
 				state = sb_bt_start;
-				add_ibs_begin(cpu_buf,
-					IBS_OP_CODE, in_kernel, mm);
+				add_ibs_begin(cpu_buf, IBS_OP_CODE, mm);
 #endif
 			} else {
 				struct mm_struct *oldmm = mm;
@@ -628,3 +631,27 @@ void sync_buffer(int cpu)
 
 	mutex_unlock(&buffer_mutex);
 }
+
+/* The function can be used to add a buffer worth of data directly to
+ * the kernel buffer. The buffer is assumed to be a circular buffer.
+ * Take the entries from index start and end at index end, wrapping
+ * at max_entries.
+ */
+void oprofile_put_buff(unsigned long *buf, unsigned int start,
+		       unsigned int stop, unsigned int max)
+{
+	int i;
+
+	i = start;
+
+	mutex_lock(&buffer_mutex);
+	while (i != stop) {
+		add_event_entry(buf[i++]);
+
+		if (i >= max)
+			i = 0;
+	}
+
+	mutex_unlock(&buffer_mutex);
+}
+
diff --git a/drivers/oprofile/buffer_sync.h b/drivers/oprofile/buffer_sync.h
index 08866f6a96a..3110732c183 100644
--- a/drivers/oprofile/buffer_sync.h
+++ b/drivers/oprofile/buffer_sync.h
@@ -9,13 +9,13 @@
 
 #ifndef OPROFILE_BUFFER_SYNC_H
 #define OPROFILE_BUFFER_SYNC_H
- 
+
 /* add the necessary profiling hooks */
 int sync_start(void);
 
 /* remove the hooks */
 void sync_stop(void);
- 
+
 /* sync the given CPU's buffer */
 void sync_buffer(int cpu);
 
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index e1bd5a937f6..01d38e78cde 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -22,7 +22,7 @@
 #include <linux/oprofile.h>
 #include <linux/vmalloc.h>
 #include <linux/errno.h>
- 
+
 #include "event_buffer.h"
 #include "cpu_buffer.h"
 #include "buffer_sync.h"
@@ -38,27 +38,40 @@ static int work_enabled;
 void free_cpu_buffers(void)
 {
 	int i;
- 
-	for_each_online_cpu(i) {
+
+	for_each_possible_cpu(i) {
 		vfree(per_cpu(cpu_buffer, i).buffer);
 		per_cpu(cpu_buffer, i).buffer = NULL;
 	}
 }
 
+unsigned long oprofile_get_cpu_buffer_size(void)
+{
+	return fs_cpu_buffer_size;
+}
+
+void oprofile_cpu_buffer_inc_smpl_lost(void)
+{
+	struct oprofile_cpu_buffer *cpu_buf
+		= &__get_cpu_var(cpu_buffer);
+
+	cpu_buf->sample_lost_overflow++;
+}
+
 int alloc_cpu_buffers(void)
 {
 	int i;
- 
+
 	unsigned long buffer_size = fs_cpu_buffer_size;
- 
-	for_each_online_cpu(i) {
+
+	for_each_possible_cpu(i) {
 		struct oprofile_cpu_buffer *b = &per_cpu(cpu_buffer, i);
- 
+
 		b->buffer = vmalloc_node(sizeof(struct op_sample) * buffer_size,
 			cpu_to_node(i));
 		if (!b->buffer)
 			goto fail;
- 
+
 		b->last_task = NULL;
 		b->last_is_kernel = -1;
 		b->tracing = 0;
@@ -112,7 +125,7 @@ void end_cpu_work(void)
 }
 
 /* Resets the cpu buffer to a sane state. */
-void cpu_buffer_reset(struct oprofile_cpu_buffer * cpu_buf)
+void cpu_buffer_reset(struct oprofile_cpu_buffer *cpu_buf)
 {
 	/* reset these to invalid values; the next sample
 	 * collected will populate the buffer with proper
@@ -123,7 +136,7 @@ void cpu_buffer_reset(struct oprofile_cpu_buffer * cpu_buf)
 }
 
 /* compute number of available slots in cpu_buffer queue */
-static unsigned long nr_available_slots(struct oprofile_cpu_buffer const * b)
+static unsigned long nr_available_slots(struct oprofile_cpu_buffer const *b)
 {
 	unsigned long head = b->head_pos;
 	unsigned long tail = b->tail_pos;
@@ -134,7 +147,7 @@ static unsigned long nr_available_slots(struct oprofile_cpu_buffer const * b)
 	return tail + (b->buffer_size - head) - 1;
 }
 
-static void increment_head(struct oprofile_cpu_buffer * b)
+static void increment_head(struct oprofile_cpu_buffer *b)
 {
 	unsigned long new_head = b->head_pos + 1;
 
@@ -149,17 +162,17 @@ static void increment_head(struct oprofile_cpu_buffer * b)
 }
 
 static inline void
-add_sample(struct oprofile_cpu_buffer * cpu_buf,
-           unsigned long pc, unsigned long event)
+add_sample(struct oprofile_cpu_buffer *cpu_buf,
+	   unsigned long pc, unsigned long event)
 {
-	struct op_sample * entry = &cpu_buf->buffer[cpu_buf->head_pos];
+	struct op_sample *entry = &cpu_buf->buffer[cpu_buf->head_pos];
 	entry->eip = pc;
 	entry->event = event;
 	increment_head(cpu_buf);
 }
 
 static inline void
-add_code(struct oprofile_cpu_buffer * buffer, unsigned long value)
+add_code(struct oprofile_cpu_buffer *buffer, unsigned long value)
 {
 	add_sample(buffer, ESCAPE_CODE, value);
 }
@@ -173,10 +186,10 @@ add_code(struct oprofile_cpu_buffer * buffer, unsigned long value)
  * pc. We tag this in the buffer by generating kernel enter/exit
  * events whenever is_kernel changes
  */
-static int log_sample(struct oprofile_cpu_buffer * cpu_buf, unsigned long pc,
+static int log_sample(struct oprofile_cpu_buffer *cpu_buf, unsigned long pc,
 		      int is_kernel, unsigned long event)
 {
-	struct task_struct * task;
+	struct task_struct *task;
 
 	cpu_buf->sample_received++;
 
@@ -205,7 +218,7 @@ static int log_sample(struct oprofile_cpu_buffer * cpu_buf, unsigned long pc,
 		cpu_buf->last_task = task;
 		add_code(cpu_buf, (unsigned long)task);
 	}
- 
+
 	add_sample(cpu_buf, pc, event);
 	return 1;
 }
@@ -222,7 +235,7 @@ static int oprofile_begin_trace(struct oprofile_cpu_buffer *cpu_buf)
 	return 1;
 }
 
-static void oprofile_end_trace(struct oprofile_cpu_buffer * cpu_buf)
+static void oprofile_end_trace(struct oprofile_cpu_buffer *cpu_buf)
 {
 	cpu_buf->tracing = 0;
 }
@@ -257,21 +270,23 @@ void oprofile_add_sample(struct pt_regs * const regs, unsigned long event)
 
 #ifdef CONFIG_OPROFILE_IBS
 
-#define MAX_IBS_SAMPLE_SIZE	14
-static int log_ibs_sample(struct oprofile_cpu_buffer *cpu_buf,
-	unsigned long pc, int is_kernel, unsigned  int *ibs, int ibs_code)
+#define MAX_IBS_SAMPLE_SIZE 14
+
+void oprofile_add_ibs_sample(struct pt_regs *const regs,
+			     unsigned int *const ibs_sample, int ibs_code)
 {
+	int is_kernel = !user_mode(regs);
+	struct oprofile_cpu_buffer *cpu_buf = &__get_cpu_var(cpu_buffer);
 	struct task_struct *task;
 
 	cpu_buf->sample_received++;
 
 	if (nr_available_slots(cpu_buf) < MAX_IBS_SAMPLE_SIZE) {
+		/* we can't backtrace since we lost the source of this event */
 		cpu_buf->sample_lost_overflow++;
-		return 0;
+		return;
 	}
 
-	is_kernel = !!is_kernel;
-
 	/* notice a switch from user->kernel or vice versa */
 	if (cpu_buf->last_is_kernel != is_kernel) {
 		cpu_buf->last_is_kernel = is_kernel;
@@ -281,7 +296,6 @@ static int log_ibs_sample(struct oprofile_cpu_buffer *cpu_buf,
 	/* notice a task switch */
 	if (!is_kernel) {
 		task = current;
-
 		if (cpu_buf->last_task != task) {
 			cpu_buf->last_task = task;
 			add_code(cpu_buf, (unsigned long)task);
@@ -289,36 +303,17 @@ static int log_ibs_sample(struct oprofile_cpu_buffer *cpu_buf,
 	}
 
 	add_code(cpu_buf, ibs_code);
-	add_sample(cpu_buf, ibs[0], ibs[1]);
-	add_sample(cpu_buf, ibs[2], ibs[3]);
-	add_sample(cpu_buf, ibs[4], ibs[5]);
+	add_sample(cpu_buf, ibs_sample[0], ibs_sample[1]);
+	add_sample(cpu_buf, ibs_sample[2], ibs_sample[3]);
+	add_sample(cpu_buf, ibs_sample[4], ibs_sample[5]);
 
 	if (ibs_code == IBS_OP_BEGIN) {
-	add_sample(cpu_buf, ibs[6], ibs[7]);
-	add_sample(cpu_buf, ibs[8], ibs[9]);
-	add_sample(cpu_buf, ibs[10], ibs[11]);
-	}
-
-	return 1;
-}
-
-void oprofile_add_ibs_sample(struct pt_regs *const regs,
-				unsigned int * const ibs_sample, u8 code)
-{
-	int is_kernel = !user_mode(regs);
-	unsigned long pc = profile_pc(regs);
-
-	struct oprofile_cpu_buffer *cpu_buf =
-			 &per_cpu(cpu_buffer, smp_processor_id());
-
-	if (!backtrace_depth) {
-		log_ibs_sample(cpu_buf, pc, is_kernel, ibs_sample, code);
-		return;
+		add_sample(cpu_buf, ibs_sample[6], ibs_sample[7]);
+		add_sample(cpu_buf, ibs_sample[8], ibs_sample[9]);
+		add_sample(cpu_buf, ibs_sample[10], ibs_sample[11]);
 	}
 
-	/* if log_sample() fails we can't backtrace since we lost the source
-	* of this event */
-	if (log_ibs_sample(cpu_buf, pc, is_kernel, ibs_sample, code))
+	if (backtrace_depth)
 		oprofile_ops.backtrace(regs, backtrace_depth);
 }
 
@@ -363,11 +358,16 @@ void oprofile_add_trace(unsigned long pc)
  */
 static void wq_sync_buffer(struct work_struct *work)
 {
-	struct oprofile_cpu_buffer * b =
+	struct oprofile_cpu_buffer *b =
 		container_of(work, struct oprofile_cpu_buffer, work.work);
 	if (b->cpu != smp_processor_id()) {
 		printk(KERN_DEBUG "WQ on CPU%d, prefer CPU%d\n",
 		       smp_processor_id(), b->cpu);
+
+		if (!cpu_online(b->cpu)) {
+			cancel_delayed_work(&b->work);
+			return;
+		}
 	}
 	sync_buffer(b->cpu);
 
diff --git a/drivers/oprofile/cpu_buffer.h b/drivers/oprofile/cpu_buffer.h
index 9c44d004da6..d3cc26264db 100644
--- a/drivers/oprofile/cpu_buffer.h
+++ b/drivers/oprofile/cpu_buffer.h
@@ -15,9 +15,9 @@
 #include <linux/workqueue.h>
 #include <linux/cache.h>
 #include <linux/sched.h>
- 
+
 struct task_struct;
- 
+
 int alloc_cpu_buffers(void);
 void free_cpu_buffers(void);
 
@@ -31,15 +31,15 @@ struct op_sample {
 	unsigned long eip;
 	unsigned long event;
 };
- 
+
 struct oprofile_cpu_buffer {
 	volatile unsigned long head_pos;
 	volatile unsigned long tail_pos;
 	unsigned long buffer_size;
-	struct task_struct * last_task;
+	struct task_struct *last_task;
 	int last_is_kernel;
 	int tracing;
-	struct op_sample * buffer;
+	struct op_sample *buffer;
 	unsigned long sample_received;
 	unsigned long sample_lost_overflow;
 	unsigned long backtrace_aborted;
@@ -50,7 +50,7 @@ struct oprofile_cpu_buffer {
 
 DECLARE_PER_CPU(struct oprofile_cpu_buffer, cpu_buffer);
 
-void cpu_buffer_reset(struct oprofile_cpu_buffer * cpu_buf);
+void cpu_buffer_reset(struct oprofile_cpu_buffer *cpu_buf);
 
 /* transient events for the CPU buffer -> event buffer */
 #define CPU_IS_KERNEL 1
diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c
index 8d692a5c8e7..191a3202cec 100644
--- a/drivers/oprofile/event_buffer.c
+++ b/drivers/oprofile/event_buffer.c
@@ -19,16 +19,16 @@
 #include <linux/dcookies.h>
 #include <linux/fs.h>
 #include <asm/uaccess.h>
- 
+
 #include "oprof.h"
 #include "event_buffer.h"
 #include "oprofile_stats.h"
 
 DEFINE_MUTEX(buffer_mutex);
- 
+
 static unsigned long buffer_opened;
 static DECLARE_WAIT_QUEUE_HEAD(buffer_wait);
-static unsigned long * event_buffer;
+static unsigned long *event_buffer;
 static unsigned long buffer_size;
 static unsigned long buffer_watershed;
 static size_t buffer_pos;
@@ -66,7 +66,7 @@ void wake_up_buffer_waiter(void)
 	mutex_unlock(&buffer_mutex);
 }
 
- 
+
 int alloc_event_buffer(void)
 {
 	int err = -ENOMEM;
@@ -76,13 +76,13 @@ int alloc_event_buffer(void)
 	buffer_size = fs_buffer_size;
 	buffer_watershed = fs_buffer_watershed;
 	spin_unlock_irqrestore(&oprofilefs_lock, flags);
- 
+
 	if (buffer_watershed >= buffer_size)
 		return -EINVAL;
- 
+
 	event_buffer = vmalloc(sizeof(unsigned long) * buffer_size);
 	if (!event_buffer)
-		goto out; 
+		goto out;
 
 	err = 0;
 out:
@@ -97,15 +97,15 @@ void free_event_buffer(void)
 	event_buffer = NULL;
 }
 
- 
-static int event_buffer_open(struct inode * inode, struct file * file)
+
+static int event_buffer_open(struct inode *inode, struct file *file)
 {
 	int err = -EPERM;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (test_and_set_bit(0, &buffer_opened))
+	if (test_and_set_bit_lock(0, &buffer_opened))
 		return -EBUSY;
 
 	/* Register as a user of dcookies
@@ -116,38 +116,38 @@ static int event_buffer_open(struct inode * inode, struct file * file)
 	file->private_data = dcookie_register();
 	if (!file->private_data)
 		goto out;
-		 
+
 	if ((err = oprofile_setup()))
 		goto fail;
 
 	/* NB: the actual start happens from userspace
 	 * echo 1 >/dev/oprofile/enable
 	 */
- 
+
 	return 0;
 
 fail:
 	dcookie_unregister(file->private_data);
 out:
-	clear_bit(0, &buffer_opened);
+	__clear_bit_unlock(0, &buffer_opened);
 	return err;
 }
 
 
-static int event_buffer_release(struct inode * inode, struct file * file)
+static int event_buffer_release(struct inode *inode, struct file *file)
 {
 	oprofile_stop();
 	oprofile_shutdown();
 	dcookie_unregister(file->private_data);
 	buffer_pos = 0;
 	atomic_set(&buffer_ready, 0);
-	clear_bit(0, &buffer_opened);
+	__clear_bit_unlock(0, &buffer_opened);
 	return 0;
 }
 
 
-static ssize_t event_buffer_read(struct file * file, char __user * buf,
-				 size_t count, loff_t * offset)
+static ssize_t event_buffer_read(struct file *file, char __user *buf,
+				 size_t count, loff_t *offset)
 {
 	int retval = -EINVAL;
 	size_t const max = buffer_size * sizeof(unsigned long);
@@ -172,18 +172,18 @@ static ssize_t event_buffer_read(struct file * file, char __user * buf,
 	retval = -EFAULT;
 
 	count = buffer_pos * sizeof(unsigned long);
- 
+
 	if (copy_to_user(buf, event_buffer, count))
 		goto out;
 
 	retval = count;
 	buffer_pos = 0;
- 
+
 out:
 	mutex_unlock(&buffer_mutex);
 	return retval;
 }
- 
+
 const struct file_operations event_buffer_fops = {
 	.open		= event_buffer_open,
 	.release	= event_buffer_release,
diff --git a/drivers/oprofile/event_buffer.h b/drivers/oprofile/event_buffer.h
index 5076ed1ebd8..4e70749f8d1 100644
--- a/drivers/oprofile/event_buffer.h
+++ b/drivers/oprofile/event_buffer.h
@@ -10,13 +10,20 @@
 #ifndef EVENT_BUFFER_H
 #define EVENT_BUFFER_H
 
-#include <linux/types.h> 
+#include <linux/types.h>
 #include <asm/mutex.h>
- 
+
 int alloc_event_buffer(void);
 
 void free_event_buffer(void);
- 
+
+/**
+ * Add data to the event buffer.
+ * The data passed is free-form, but typically consists of
+ * file offsets, dcookies, context information, and ESCAPE codes.
+ */
+void add_event_entry(unsigned long data);
+
 /* wake up the process sleeping on the event file */
 void wake_up_buffer_waiter(void);
 
@@ -24,10 +31,10 @@ void wake_up_buffer_waiter(void);
 #define NO_COOKIE 0UL
 
 extern const struct file_operations event_buffer_fops;
- 
+
 /* mutex between sync_cpu_buffers() and the
  * file reading code.
  */
 extern struct mutex buffer_mutex;
- 
+
 #endif /* EVENT_BUFFER_H */
diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index 2c645170f06..cd375907f26 100644
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -19,7 +19,7 @@
 #include "cpu_buffer.h"
 #include "buffer_sync.h"
 #include "oprofile_stats.h"
- 
+
 struct oprofile_operations oprofile_ops;
 
 unsigned long oprofile_started;
@@ -36,7 +36,7 @@ static int timer = 0;
 int oprofile_setup(void)
 {
 	int err;
- 
+
 	mutex_lock(&start_mutex);
 
 	if ((err = alloc_cpu_buffers()))
@@ -44,10 +44,10 @@ int oprofile_setup(void)
 
 	if ((err = alloc_event_buffer()))
 		goto out1;
- 
+
 	if (oprofile_ops.setup && (err = oprofile_ops.setup()))
 		goto out2;
- 
+
 	/* Note even though this starts part of the
 	 * profiling overhead, it's necessary to prevent
 	 * us missing task deaths and eventually oopsing
@@ -74,7 +74,7 @@ post_sync:
 	is_setup = 1;
 	mutex_unlock(&start_mutex);
 	return 0;
- 
+
 out3:
 	if (oprofile_ops.shutdown)
 		oprofile_ops.shutdown();
@@ -92,17 +92,17 @@ out:
 int oprofile_start(void)
 {
 	int err = -EINVAL;
- 
+
 	mutex_lock(&start_mutex);
- 
+
 	if (!is_setup)
 		goto out;
 
-	err = 0; 
- 
+	err = 0;
+
 	if (oprofile_started)
 		goto out;
- 
+
 	oprofile_reset_stats();
 
 	if ((err = oprofile_ops.start()))
@@ -114,7 +114,7 @@ out:
 	return err;
 }
 
- 
+
 /* echo 0>/dev/oprofile/enable */
 void oprofile_stop(void)
 {
@@ -204,13 +204,13 @@ static void __exit oprofile_exit(void)
 	oprofile_arch_exit();
 }
 
- 
+
 module_init(oprofile_init);
 module_exit(oprofile_exit);
 
 module_param_named(timer, timer, int, 0644);
 MODULE_PARM_DESC(timer, "force use of timer interrupt");
- 
+
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("John Levon <levon@movementarian.org>");
 MODULE_DESCRIPTION("OProfile system profiler");
diff --git a/drivers/oprofile/oprof.h b/drivers/oprofile/oprof.h
index 18323650806..5df0c21a608 100644
--- a/drivers/oprofile/oprof.h
+++ b/drivers/oprofile/oprof.h
@@ -11,7 +11,7 @@
 #define OPROF_H
 
 int oprofile_setup(void);
-void oprofile_shutdown(void); 
+void oprofile_shutdown(void);
 
 int oprofilefs_register(void);
 void oprofilefs_unregister(void);
@@ -20,20 +20,20 @@ int oprofile_start(void);
 void oprofile_stop(void);
 
 struct oprofile_operations;
- 
+
 extern unsigned long fs_buffer_size;
 extern unsigned long fs_cpu_buffer_size;
 extern unsigned long fs_buffer_watershed;
 extern struct oprofile_operations oprofile_ops;
 extern unsigned long oprofile_started;
 extern unsigned long backtrace_depth;
- 
+
 struct super_block;
 struct dentry;
 
-void oprofile_create_files(struct super_block * sb, struct dentry * root);
-void oprofile_timer_init(struct oprofile_operations * ops);
+void oprofile_create_files(struct super_block *sb, struct dentry *root);
+void oprofile_timer_init(struct oprofile_operations *ops);
 
 int oprofile_set_backtrace(unsigned long depth);
- 
+
 #endif /* OPROF_H */
diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
index ef953ba5ab6..cc106d503ac 100644
--- a/drivers/oprofile/oprofile_files.c
+++ b/drivers/oprofile/oprofile_files.c
@@ -13,18 +13,18 @@
 #include "event_buffer.h"
 #include "oprofile_stats.h"
 #include "oprof.h"
- 
+
 unsigned long fs_buffer_size = 131072;
 unsigned long fs_cpu_buffer_size = 8192;
 unsigned long fs_buffer_watershed = 32768; /* FIXME: tune */
 
-static ssize_t depth_read(struct file * file, char __user * buf, size_t count, loff_t * offset)
+static ssize_t depth_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
 {
 	return oprofilefs_ulong_to_user(backtrace_depth, buf, count, offset);
 }
 
 
-static ssize_t depth_write(struct file * file, char const __user * buf, size_t count, loff_t * offset)
+static ssize_t depth_write(struct file *file, char const __user *buf, size_t count, loff_t *offset)
 {
 	unsigned long val;
 	int retval;
@@ -49,8 +49,8 @@ static const struct file_operations depth_fops = {
 	.write		= depth_write
 };
 
- 
-static ssize_t pointer_size_read(struct file * file, char __user * buf, size_t count, loff_t * offset)
+
+static ssize_t pointer_size_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
 {
 	return oprofilefs_ulong_to_user(sizeof(void *), buf, count, offset);
 }
@@ -61,24 +61,24 @@ static const struct file_operations pointer_size_fops = {
 };
 
 
-static ssize_t cpu_type_read(struct file * file, char __user * buf, size_t count, loff_t * offset)
+static ssize_t cpu_type_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
 {
 	return oprofilefs_str_to_user(oprofile_ops.cpu_type, buf, count, offset);
 }
- 
- 
+
+
 static const struct file_operations cpu_type_fops = {
 	.read		= cpu_type_read,
 };
- 
- 
-static ssize_t enable_read(struct file * file, char __user * buf, size_t count, loff_t * offset)
+
+
+static ssize_t enable_read(struct file *file, char __user *buf, size_t count, loff_t *offset)
 {
 	return oprofilefs_ulong_to_user(oprofile_started, buf, count, offset);
 }
 
 
-static ssize_t enable_write(struct file * file, char const __user * buf, size_t count, loff_t * offset)
+static ssize_t enable_write(struct file *file, char const __user *buf, size_t count, loff_t *offset)
 {
 	unsigned long val;
 	int retval;
@@ -89,7 +89,7 @@ static ssize_t enable_write(struct file * file, char const __user * buf, size_t
 	retval = oprofilefs_ulong_from_user(&val, buf, count);
 	if (retval)
 		return retval;
- 
+
 	if (val)
 		retval = oprofile_start();
 	else
@@ -100,14 +100,14 @@ static ssize_t enable_write(struct file * file, char const __user * buf, size_t
 	return count;
 }
 
- 
+
 static const struct file_operations enable_fops = {
 	.read		= enable_read,
 	.write		= enable_write,
 };
 
 
-static ssize_t dump_write(struct file * file, char const __user * buf, size_t count, loff_t * offset)
+static ssize_t dump_write(struct file *file, char const __user *buf, size_t count, loff_t *offset)
 {
 	wake_up_buffer_waiter();
 	return count;
@@ -117,8 +117,8 @@ static ssize_t dump_write(struct file * file, char const __user * buf, size_t co
 static const struct file_operations dump_fops = {
 	.write		= dump_write,
 };
- 
-void oprofile_create_files(struct super_block * sb, struct dentry * root)
+
+void oprofile_create_files(struct super_block *sb, struct dentry *root)
 {
 	oprofilefs_create_file(sb, root, "enable", &enable_fops);
 	oprofilefs_create_file_perm(sb, root, "dump", &dump_fops, 0666);
@@ -126,7 +126,7 @@ void oprofile_create_files(struct super_block * sb, struct dentry * root)
 	oprofilefs_create_ulong(sb, root, "buffer_size", &fs_buffer_size);
 	oprofilefs_create_ulong(sb, root, "buffer_watershed", &fs_buffer_watershed);
 	oprofilefs_create_ulong(sb, root, "cpu_buffer_size", &fs_cpu_buffer_size);
-	oprofilefs_create_file(sb, root, "cpu_type", &cpu_type_fops); 
+	oprofilefs_create_file(sb, root, "cpu_type", &cpu_type_fops);
 	oprofilefs_create_file(sb, root, "backtrace_depth", &depth_fops);
 	oprofilefs_create_file(sb, root, "pointer_size", &pointer_size_fops);
 	oprofile_create_stats_files(sb, root);
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
index f99b28e7b79..e1f6ce03705 100644
--- a/drivers/oprofile/oprofile_stats.c
+++ b/drivers/oprofile/oprofile_stats.c
@@ -11,17 +11,17 @@
 #include <linux/smp.h>
 #include <linux/cpumask.h>
 #include <linux/threads.h>
- 
+
 #include "oprofile_stats.h"
 #include "cpu_buffer.h"
- 
+
 struct oprofile_stat_struct oprofile_stats;
- 
+
 void oprofile_reset_stats(void)
 {
-	struct oprofile_cpu_buffer * cpu_buf; 
+	struct oprofile_cpu_buffer *cpu_buf;
 	int i;
- 
+
 	for_each_possible_cpu(i) {
 		cpu_buf = &per_cpu(cpu_buffer, i);
 		cpu_buf->sample_received = 0;
@@ -29,18 +29,18 @@ void oprofile_reset_stats(void)
 		cpu_buf->backtrace_aborted = 0;
 		cpu_buf->sample_invalid_eip = 0;
 	}
- 
+
 	atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
 	atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
 	atomic_set(&oprofile_stats.event_lost_overflow, 0);
 }
 
 
-void oprofile_create_stats_files(struct super_block * sb, struct dentry * root)
+void oprofile_create_stats_files(struct super_block *sb, struct dentry *root)
 {
-	struct oprofile_cpu_buffer * cpu_buf;
-	struct dentry * cpudir;
-	struct dentry * dir;
+	struct oprofile_cpu_buffer *cpu_buf;
+	struct dentry *cpudir;
+	struct dentry *dir;
 	char buf[10];
 	int i;
 
@@ -52,7 +52,7 @@ void oprofile_create_stats_files(struct super_block * sb, struct dentry * root)
 		cpu_buf = &per_cpu(cpu_buffer, i);
 		snprintf(buf, 10, "cpu%d", i);
 		cpudir = oprofilefs_mkdir(sb, dir, buf);
- 
+
 		/* Strictly speaking access to these ulongs is racy,
 		 * but we can't simply lock them, and they are
 		 * informational only.
@@ -66,7 +66,7 @@ void oprofile_create_stats_files(struct super_block * sb, struct dentry * root)
 		oprofilefs_create_ro_ulong(sb, cpudir, "sample_invalid_eip",
 			&cpu_buf->sample_invalid_eip);
 	}
- 
+
 	oprofilefs_create_ro_atomic(sb, dir, "sample_lost_no_mm",
 		&oprofile_stats.sample_lost_no_mm);
 	oprofilefs_create_ro_atomic(sb, dir, "sample_lost_no_mapping",
diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
index 6d755a633f1..3da0d08dc1f 100644
--- a/drivers/oprofile/oprofile_stats.h
+++ b/drivers/oprofile/oprofile_stats.h
@@ -11,7 +11,7 @@
 #define OPROFILE_STATS_H
 
 #include <asm/atomic.h>
- 
+
 struct oprofile_stat_struct {
 	atomic_t sample_lost_no_mm;
 	atomic_t sample_lost_no_mapping;
@@ -20,14 +20,14 @@ struct oprofile_stat_struct {
 };
 
 extern struct oprofile_stat_struct oprofile_stats;
- 
+
 /* reset all stats to zero */
 void oprofile_reset_stats(void);
- 
+
 struct super_block;
 struct dentry;
- 
+
 /* create the stats/ dir */
-void oprofile_create_stats_files(struct super_block * sb, struct dentry * root);
+void oprofile_create_stats_files(struct super_block *sb, struct dentry *root);
 
 #endif /* OPROFILE_STATS_H */
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 8543cb26cf3..ddc4c59f02d 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -23,9 +23,9 @@
 
 DEFINE_SPINLOCK(oprofilefs_lock);
 
-static struct inode * oprofilefs_get_inode(struct super_block * sb, int mode)
+static struct inode *oprofilefs_get_inode(struct super_block *sb, int mode)
 {
-	struct inode * inode = new_inode(sb);
+	struct inode *inode = new_inode(sb);
 
 	if (inode) {
 		inode->i_mode = mode;
@@ -44,7 +44,7 @@ static struct super_operations s_ops = {
 };
 
 
-ssize_t oprofilefs_str_to_user(char const * str, char __user * buf, size_t count, loff_t * offset)
+ssize_t oprofilefs_str_to_user(char const *str, char __user *buf, size_t count, loff_t *offset)
 {
 	return simple_read_from_buffer(buf, count, offset, str, strlen(str));
 }
@@ -52,7 +52,7 @@ ssize_t oprofilefs_str_to_user(char const * str, char __user * buf, size_t count
 
 #define TMPBUFSIZE 50
 
-ssize_t oprofilefs_ulong_to_user(unsigned long val, char __user * buf, size_t count, loff_t * offset)
+ssize_t oprofilefs_ulong_to_user(unsigned long val, char __user *buf, size_t count, loff_t *offset)
 {
 	char tmpbuf[TMPBUFSIZE];
 	size_t maxlen = snprintf(tmpbuf, TMPBUFSIZE, "%lu\n", val);
@@ -62,7 +62,7 @@ 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)
+int oprofilefs_ulong_from_user(unsigned long *val, char const __user *buf, size_t count)
 {
 	char tmpbuf[TMPBUFSIZE];
 	unsigned long flags;
@@ -85,16 +85,16 @@ int oprofilefs_ulong_from_user(unsigned long * val, char const __user * buf, siz
 }
 
 
-static ssize_t ulong_read_file(struct file * file, char __user * buf, size_t count, loff_t * offset)
+static ssize_t ulong_read_file(struct file *file, char __user *buf, size_t count, loff_t *offset)
 {
-	unsigned long * val = file->private_data;
+	unsigned long *val = file->private_data;
 	return oprofilefs_ulong_to_user(*val, buf, count, offset);
 }
 
 
-static ssize_t ulong_write_file(struct file * file, char const __user * buf, size_t count, loff_t * offset)
+static ssize_t ulong_write_file(struct file *file, char const __user *buf, size_t count, loff_t *offset)
 {
-	unsigned long * value = file->private_data;
+	unsigned long *value = file->private_data;
 	int retval;
 
 	if (*offset)
@@ -108,7 +108,7 @@ static ssize_t ulong_write_file(struct file * file, char const __user * buf, siz
 }
 
 
-static int default_open(struct inode * inode, struct file * filp)
+static int default_open(struct inode *inode, struct file *filp)
 {
 	if (inode->i_private)
 		filp->private_data = inode->i_private;
@@ -129,12 +129,12 @@ static const struct file_operations ulong_ro_fops = {
 };
 
 
-static struct dentry * __oprofilefs_create_file(struct super_block * sb,
-	struct dentry * root, char const * name, const struct file_operations * fops,
+static struct dentry *__oprofilefs_create_file(struct super_block *sb,
+	struct dentry *root, char const *name, const struct file_operations *fops,
 	int perm)
 {
-	struct dentry * dentry;
-	struct inode * inode;
+	struct dentry *dentry;
+	struct inode *inode;
 
 	dentry = d_alloc_name(root, name);
 	if (!dentry)
@@ -150,10 +150,10 @@ static struct dentry * __oprofilefs_create_file(struct super_block * sb,
 }
 
 
-int oprofilefs_create_ulong(struct super_block * sb, struct dentry * root,
-	char const * name, unsigned long * val)
+int oprofilefs_create_ulong(struct super_block *sb, struct dentry *root,
+	char const *name, unsigned long *val)
 {
-	struct dentry * d = __oprofilefs_create_file(sb, root, name,
+	struct dentry *d = __oprofilefs_create_file(sb, root, name,
 						     &ulong_fops, 0644);
 	if (!d)
 		return -EFAULT;
@@ -163,10 +163,10 @@ int oprofilefs_create_ulong(struct super_block * sb, struct dentry * root,
 }
 
 
-int oprofilefs_create_ro_ulong(struct super_block * sb, struct dentry * root,
-	char const * name, unsigned long * val)
+int oprofilefs_create_ro_ulong(struct super_block *sb, struct dentry *root,
+	char const *name, unsigned long *val)
 {
-	struct dentry * d = __oprofilefs_create_file(sb, root, name,
+	struct dentry *d = __oprofilefs_create_file(sb, root, name,
 						     &ulong_ro_fops, 0444);
 	if (!d)
 		return -EFAULT;
@@ -176,23 +176,23 @@ int oprofilefs_create_ro_ulong(struct super_block * sb, struct dentry * root,
 }
 
 
-static ssize_t atomic_read_file(struct file * file, char __user * buf, size_t count, loff_t * offset)
+static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t count, loff_t *offset)
 {
-	atomic_t * val = file->private_data;
+	atomic_t *val = file->private_data;
 	return oprofilefs_ulong_to_user(atomic_read(val), buf, count, offset);
 }
- 
+
 
 static const struct file_operations atomic_ro_fops = {
 	.read		= atomic_read_file,
 	.open		= default_open,
 };
- 
 
-int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root,
-	char const * name, atomic_t * val)
+
+int oprofilefs_create_ro_atomic(struct super_block *sb, struct dentry *root,
+	char const *name, atomic_t *val)
 {
-	struct dentry * d = __oprofilefs_create_file(sb, root, name,
+	struct dentry *d = __oprofilefs_create_file(sb, root, name,
 						     &atomic_ro_fops, 0444);
 	if (!d)
 		return -EFAULT;
@@ -201,9 +201,9 @@ int oprofilefs_create_ro_atomic(struct super_block * sb, struct dentry * root,
 	return 0;
 }
 
- 
-int oprofilefs_create_file(struct super_block * sb, struct dentry * root,
-	char const * name, const struct file_operations * fops)
+
+int oprofilefs_create_file(struct super_block *sb, struct dentry *root,
+	char const *name, const struct file_operations *fops)
 {
 	if (!__oprofilefs_create_file(sb, root, name, fops, 0644))
 		return -EFAULT;
@@ -211,8 +211,8 @@ int oprofilefs_create_file(struct super_block * sb, struct dentry * root,
 }
 
 
-int oprofilefs_create_file_perm(struct super_block * sb, struct dentry * root,
-	char const * name, const struct file_operations * fops, int perm)
+int oprofilefs_create_file_perm(struct super_block *sb, struct dentry *root,
+	char const *name, const struct file_operations *fops, int perm)
 {
 	if (!__oprofilefs_create_file(sb, root, name, fops, perm))
 		return -EFAULT;
@@ -220,11 +220,11 @@ int oprofilefs_create_file_perm(struct super_block * sb, struct dentry * root,
 }
 
 
-struct dentry * oprofilefs_mkdir(struct super_block * sb,
-	struct dentry * root, char const * name)
+struct dentry *oprofilefs_mkdir(struct super_block *sb,
+	struct dentry *root, char const *name)
 {
-	struct dentry * dentry;
-	struct inode * inode;
+	struct dentry *dentry;
+	struct inode *inode;
 
 	dentry = d_alloc_name(root, name);
 	if (!dentry)
@@ -241,10 +241,10 @@ struct dentry * oprofilefs_mkdir(struct super_block * sb,
 }
 
 
-static int oprofilefs_fill_super(struct super_block * sb, void * data, int silent)
+static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent)
 {
-	struct inode * root_inode;
-	struct dentry * root_dentry;
+	struct inode *root_inode;
+	struct dentry *root_dentry;
 
 	sb->s_blocksize = PAGE_CACHE_SIZE;
 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c
index 710a45f0d73..333f915568c 100644
--- a/drivers/oprofile/timer_int.c
+++ b/drivers/oprofile/timer_int.c
@@ -19,7 +19,7 @@
 
 static int timer_notify(struct pt_regs *regs)
 {
- 	oprofile_add_sample(regs, 0);
+	oprofile_add_sample(regs, 0);
 	return 0;
 }
 
@@ -35,7 +35,7 @@ static void timer_stop(void)
 }
 
 
-void __init oprofile_timer_init(struct oprofile_operations * ops)
+void __init oprofile_timer_init(struct oprofile_operations *ops)
 {
 	ops->create_files = NULL;
 	ops->setup = NULL;