Merge branch 'master' into for-next

Conflicts:
	drivers/devfreq/exynos4_bus.c

Sync with Linus' tree to be able to apply patches that are
against newer code (mvneta).

6 files changed, 589 insertions, 255 deletions

diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile
index e16fcd51716e..b35a631734d6 100644
--- a/drivers/staging/android/Makefile
+++ b/drivers/staging/android/Makefile
@@ -1,3 +1,5 @@
+ccflags-y += -I$(src)			# needed for trace events
+
 obj-$(CONFIG_ANDROID_BINDER_IPC)	+= binder.o
 obj-$(CONFIG_ASHMEM)			+= ashmem.o
 obj-$(CONFIG_ANDROID_LOGGER)		+= logger.o
diff --git a/drivers/staging/android/android_alarm.h b/drivers/staging/android/android_alarm.h
index f2ffd963f1c3..d0cafd637199 100644
--- a/drivers/staging/android/android_alarm.h
+++ b/drivers/staging/android/android_alarm.h
@@ -51,12 +51,10 @@ enum android_alarm_return_flags {
 #define ANDROID_ALARM_WAIT                  _IO('a', 1)
 
 #define ALARM_IOW(c, type, size)            _IOW('a', (c) | ((type) << 4), size)
-#define ALARM_IOR(c, type, size)            _IOR('a', (c) | ((type) << 4), size)
-
 /* Set alarm */
 #define ANDROID_ALARM_SET(type)             ALARM_IOW(2, type, struct timespec)
 #define ANDROID_ALARM_SET_AND_WAIT(type)    ALARM_IOW(3, type, struct timespec)
-#define ANDROID_ALARM_GET_TIME(type)        ALARM_IOR(4, type, struct timespec)
+#define ANDROID_ALARM_GET_TIME(type)        ALARM_IOW(4, type, struct timespec)
 #define ANDROID_ALARM_SET_RTC               _IOW('a', 5, struct timespec)
 #define ANDROID_ALARM_BASE_CMD(cmd)         (cmd & ~(_IOC(0, 0, 0xf0, 0)))
 #define ANDROID_ALARM_IOCTL_TO_TYPE(cmd)    (_IOC_NR(cmd) >> 4)
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 5d4610babd8a..2d12e8a1f82e 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -15,6 +15,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <asm/cacheflush.h>
 #include <linux/fdtable.h>
 #include <linux/file.h>
@@ -33,10 +35,12 @@
 #include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#include <linux/pid_namespace.h>
 
 #include "binder.h"
+#include "binder_trace.h"
 
-static DEFINE_MUTEX(binder_lock);
+static DEFINE_MUTEX(binder_main_lock);
 static DEFINE_MUTEX(binder_deferred_lock);
 static DEFINE_MUTEX(binder_mmap_lock);
 
@@ -411,6 +415,19 @@ static long task_close_fd(struct binder_proc *proc, unsigned int fd)
 	return retval;
 }
 
+static inline void binder_lock(const char *tag)
+{
+	trace_binder_lock(tag);
+	mutex_lock(&binder_main_lock);
+	trace_binder_locked(tag);
+}
+
+static inline void binder_unlock(const char *tag)
+{
+	trace_binder_unlock(tag);
+	mutex_unlock(&binder_main_lock);
+}
+
 static void binder_set_nice(long nice)
 {
 	long min_nice;
@@ -420,12 +437,12 @@ static void binder_set_nice(long nice)
 	}
 	min_nice = 20 - current->signal->rlim[RLIMIT_NICE].rlim_cur;
 	binder_debug(BINDER_DEBUG_PRIORITY_CAP,
-		     "binder: %d: nice value %ld not allowed use "
-		     "%ld instead\n", current->pid, nice, min_nice);
+		     "%d: nice value %ld not allowed use %ld instead\n",
+		      current->pid, nice, min_nice);
 	set_user_nice(current, min_nice);
 	if (min_nice < 20)
 		return;
-	binder_user_error("binder: %d RLIMIT_NICE not set\n", current->pid);
+	binder_user_error("%d RLIMIT_NICE not set\n", current->pid);
 }
 
 static size_t binder_buffer_size(struct binder_proc *proc,
@@ -452,8 +469,8 @@ static void binder_insert_free_buffer(struct binder_proc *proc,
 	new_buffer_size = binder_buffer_size(proc, new_buffer);
 
 	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: add free buffer, size %zd, "
-		     "at %p\n", proc->pid, new_buffer_size, new_buffer);
+		     "%d: add free buffer, size %zd, at %p\n",
+		      proc->pid, new_buffer_size, new_buffer);
 
 	while (*p) {
 		parent = *p;
@@ -531,12 +548,14 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 	struct mm_struct *mm;
 
 	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: %s pages %p-%p\n", proc->pid,
+		     "%d: %s pages %p-%p\n", proc->pid,
 		     allocate ? "allocate" : "free", start, end);
 
 	if (end <= start)
 		return 0;
 
+	trace_binder_update_page_range(proc, allocate, start, end);
+
 	if (vma)
 		mm = NULL;
 	else
@@ -546,7 +565,7 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 		down_write(&mm->mmap_sem);
 		vma = proc->vma;
 		if (vma && mm != proc->vma_vm_mm) {
-			pr_err("binder: %d: vma mm and task mm mismatch\n",
+			pr_err("%d: vma mm and task mm mismatch\n",
 				proc->pid);
 			vma = NULL;
 		}
@@ -556,8 +575,8 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 		goto free_range;
 
 	if (vma == NULL) {
-		pr_err("binder: %d: binder_alloc_buf failed to "
-		       "map pages in userspace, no vma\n", proc->pid);
+		pr_err("%d: binder_alloc_buf failed to map pages in userspace, no vma\n",
+			proc->pid);
 		goto err_no_vma;
 	}
 
@@ -569,8 +588,8 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 		BUG_ON(*page);
 		*page = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
 		if (*page == NULL) {
-			pr_err("binder: %d: binder_alloc_buf failed "
-			       "for page at %p\n", proc->pid, page_addr);
+			pr_err("%d: binder_alloc_buf failed for page at %p\n",
+				proc->pid, page_addr);
 			goto err_alloc_page_failed;
 		}
 		tmp_area.addr = page_addr;
@@ -578,8 +597,7 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 		page_array_ptr = page;
 		ret = map_vm_area(&tmp_area, PAGE_KERNEL, &page_array_ptr);
 		if (ret) {
-			pr_err("binder: %d: binder_alloc_buf failed "
-			       "to map page at %p in kernel\n",
+			pr_err("%d: binder_alloc_buf failed to map page at %p in kernel\n",
 			       proc->pid, page_addr);
 			goto err_map_kernel_failed;
 		}
@@ -587,8 +605,7 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate,
 			(uintptr_t)page_addr + proc->user_buffer_offset;
 		ret = vm_insert_page(vma, user_page_addr, page[0]);
 		if (ret) {
-			pr_err("binder: %d: binder_alloc_buf failed "
-			       "to map page at %lx in userspace\n",
+			pr_err("%d: binder_alloc_buf failed to map page at %lx in userspace\n",
 			       proc->pid, user_page_addr);
 			goto err_vm_insert_page_failed;
 		}
@@ -636,7 +653,7 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
 	size_t size;
 
 	if (proc->vma == NULL) {
-		pr_err("binder: %d: binder_alloc_buf, no vma\n",
+		pr_err("%d: binder_alloc_buf, no vma\n",
 		       proc->pid);
 		return NULL;
 	}
@@ -645,16 +662,16 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
 		ALIGN(offsets_size, sizeof(void *));
 
 	if (size < data_size || size < offsets_size) {
-		binder_user_error("binder: %d: got transaction with invalid "
-			"size %zd-%zd\n", proc->pid, data_size, offsets_size);
+		binder_user_error("%d: got transaction with invalid size %zd-%zd\n",
+				proc->pid, data_size, offsets_size);
 		return NULL;
 	}
 
 	if (is_async &&
 	    proc->free_async_space < size + sizeof(struct binder_buffer)) {
 		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-			     "binder: %d: binder_alloc_buf size %zd"
-			     "failed, no async space left\n", proc->pid, size);
+			     "%d: binder_alloc_buf size %zd failed, no async space left\n",
+			      proc->pid, size);
 		return NULL;
 	}
 
@@ -674,8 +691,8 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
 		}
 	}
 	if (best_fit == NULL) {
-		pr_err("binder: %d: binder_alloc_buf size %zd failed, "
-		       "no address space\n", proc->pid, size);
+		pr_err("%d: binder_alloc_buf size %zd failed, no address space\n",
+			proc->pid, size);
 		return NULL;
 	}
 	if (n == NULL) {
@@ -684,8 +701,8 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
 	}
 
 	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: binder_alloc_buf size %zd got buff"
-		     "er %p size %zd\n", proc->pid, size, buffer, buffer_size);
+		     "%d: binder_alloc_buf size %zd got buffer %p size %zd\n",
+		      proc->pid, size, buffer, buffer_size);
 
 	has_page_addr =
 		(void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK);
@@ -713,17 +730,16 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
 		binder_insert_free_buffer(proc, new_buffer);
 	}
 	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: binder_alloc_buf size %zd got "
-		     "%p\n", proc->pid, size, buffer);
+		     "%d: binder_alloc_buf size %zd got %p\n",
+		      proc->pid, size, buffer);
 	buffer->data_size = data_size;
 	buffer->offsets_size = offsets_size;
 	buffer->async_transaction = is_async;
 	if (is_async) {
 		proc->free_async_space -= size + sizeof(struct binder_buffer);
 		binder_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
-			     "binder: %d: binder_alloc_buf size %zd "
-			     "async free %zd\n", proc->pid, size,
-			     proc->free_async_space);
+			     "%d: binder_alloc_buf size %zd async free %zd\n",
+			      proc->pid, size, proc->free_async_space);
 	}
 
 	return buffer;
@@ -754,8 +770,8 @@ static void binder_delete_free_buffer(struct binder_proc *proc,
 		if (buffer_end_page(prev) == buffer_end_page(buffer))
 			free_page_end = 0;
 		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-			     "binder: %d: merge free, buffer %p "
-			     "share page with %p\n", proc->pid, buffer, prev);
+			     "%d: merge free, buffer %p share page with %p\n",
+			      proc->pid, buffer, prev);
 	}
 
 	if (!list_is_last(&buffer->entry, &proc->buffers)) {
@@ -767,16 +783,14 @@ static void binder_delete_free_buffer(struct binder_proc *proc,
 			    buffer_start_page(buffer))
 				free_page_start = 0;
 			binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-				     "binder: %d: merge free, buffer"
-				     " %p share page with %p\n", proc->pid,
-				     buffer, prev);
+				     "%d: merge free, buffer %p share page with %p\n",
+				      proc->pid, buffer, prev);
 		}
 	}
 	list_del(&buffer->entry);
 	if (free_page_start || free_page_end) {
 		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-			     "binder: %d: merge free, buffer %p do "
-			     "not share page%s%s with with %p or %p\n",
+			     "%d: merge free, buffer %p do not share page%s%s with with %p or %p\n",
 			     proc->pid, buffer, free_page_start ? "" : " end",
 			     free_page_end ? "" : " start", prev, next);
 		binder_update_page_range(proc, 0, free_page_start ?
@@ -797,8 +811,8 @@ static void binder_free_buf(struct binder_proc *proc,
 		ALIGN(buffer->offsets_size, sizeof(void *));
 
 	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-		     "binder: %d: binder_free_buf %p size %zd buffer"
-		     "_size %zd\n", proc->pid, buffer, size, buffer_size);
+		     "%d: binder_free_buf %p size %zd buffer_size %zd\n",
+		      proc->pid, buffer, size, buffer_size);
 
 	BUG_ON(buffer->free);
 	BUG_ON(size > buffer_size);
@@ -810,9 +824,8 @@ static void binder_free_buf(struct binder_proc *proc,
 		proc->free_async_space += size + sizeof(struct binder_buffer);
 
 		binder_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
-			     "binder: %d: binder_free_buf size %zd "
-			     "async free %zd\n", proc->pid, size,
-			     proc->free_async_space);
+			     "%d: binder_free_buf size %zd async free %zd\n",
+			      proc->pid, size, proc->free_async_space);
 	}
 
 	binder_update_page_range(proc, 0,
@@ -894,7 +907,7 @@ static struct binder_node *binder_new_node(struct binder_proc *proc,
 	INIT_LIST_HEAD(&node->work.entry);
 	INIT_LIST_HEAD(&node->async_todo);
 	binder_debug(BINDER_DEBUG_INTERNAL_REFS,
-		     "binder: %d:%d node %d u%p c%p created\n",
+		     "%d:%d node %d u%p c%p created\n",
 		     proc->pid, current->pid, node->debug_id,
 		     node->ptr, node->cookie);
 	return node;
@@ -909,8 +922,8 @@ static int binder_inc_node(struct binder_node *node, int strong, int internal,
 			    node->internal_strong_refs == 0 &&
 			    !(node == binder_context_mgr_node &&
 			    node->has_strong_ref)) {
-				pr_err("binder: invalid inc strong "
-					"node for %d\n", node->debug_id);
+				pr_err("invalid inc strong node for %d\n",
+					node->debug_id);
 				return -EINVAL;
 			}
 			node->internal_strong_refs++;
@@ -925,8 +938,8 @@ static int binder_inc_node(struct binder_node *node, int strong, int internal,
 			node->local_weak_refs++;
 		if (!node->has_weak_ref && list_empty(&node->work.entry)) {
 			if (target_list == NULL) {
-				pr_err("binder: invalid inc weak node "
-					"for %d\n", node->debug_id);
+				pr_err("invalid inc weak node for %d\n",
+					node->debug_id);
 				return -EINVAL;
 			}
 			list_add_tail(&node->work.entry, target_list);
@@ -962,12 +975,12 @@ static int binder_dec_node(struct binder_node *node, int strong, int internal)
 			if (node->proc) {
 				rb_erase(&node->rb_node, &node->proc->nodes);
 				binder_debug(BINDER_DEBUG_INTERNAL_REFS,
-					     "binder: refless node %d deleted\n",
+					     "refless node %d deleted\n",
 					     node->debug_id);
 			} else {
 				hlist_del(&node->dead_node);
 				binder_debug(BINDER_DEBUG_INTERNAL_REFS,
-					     "binder: dead node %d deleted\n",
+					     "dead node %d deleted\n",
 					     node->debug_id);
 			}
 			kfree(node);
@@ -1053,14 +1066,13 @@ static struct binder_ref *binder_get_ref_for_node(struct binder_proc *proc,
 		hlist_add_head(&new_ref->node_entry, &node->refs);
 
 		binder_debug(BINDER_DEBUG_INTERNAL_REFS,
-			     "binder: %d new ref %d desc %d for "
-			     "node %d\n", proc->pid, new_ref->debug_id,
-			     new_ref->desc, node->debug_id);
+			     "%d new ref %d desc %d for node %d\n",
+			      proc->pid, new_ref->debug_id, new_ref->desc,
+			      node->debug_id);
 	} else {
 		binder_debug(BINDER_DEBUG_INTERNAL_REFS,
-			     "binder: %d new ref %d desc %d for "
-			     "dead node\n", proc->pid, new_ref->debug_id,
-			      new_ref->desc);
+			     "%d new ref %d desc %d for dead node\n",
+			      proc->pid, new_ref->debug_id, new_ref->desc);
 	}
 	return new_ref;
 }
@@ -1068,9 +1080,9 @@ static struct binder_ref *binder_get_ref_for_node(struct binder_proc *proc,
 static void binder_delete_ref(struct binder_ref *ref)
 {
 	binder_debug(BINDER_DEBUG_INTERNAL_REFS,
-		     "binder: %d delete ref %d desc %d for "
-		     "node %d\n", ref->proc->pid, ref->debug_id,
-		     ref->desc, ref->node->debug_id);
+		     "%d delete ref %d desc %d for node %d\n",
+		      ref->proc->pid, ref->debug_id, ref->desc,
+		      ref->node->debug_id);
 
 	rb_erase(&ref->rb_node_desc, &ref->proc->refs_by_desc);
 	rb_erase(&ref->rb_node_node, &ref->proc->refs_by_node);
@@ -1080,9 +1092,8 @@ static void binder_delete_ref(struct binder_ref *ref)
 	binder_dec_node(ref->node, 0, 1);
 	if (ref->death) {
 		binder_debug(BINDER_DEBUG_DEAD_BINDER,
-			     "binder: %d delete ref %d desc %d "
-			     "has death notification\n", ref->proc->pid,
-			     ref->debug_id, ref->desc);
+			     "%d delete ref %d desc %d has death notification\n",
+			      ref->proc->pid, ref->debug_id, ref->desc);
 		list_del(&ref->death->work.entry);
 		kfree(ref->death);
 		binder_stats_deleted(BINDER_STAT_DEATH);
@@ -1118,8 +1129,7 @@ static int binder_dec_ref(struct binder_ref *ref, int strong)
 {
 	if (strong) {
 		if (ref->strong == 0) {
-			binder_user_error("binder: %d invalid dec strong, "
-					  "ref %d desc %d s %d w %d\n",
+			binder_user_error("%d invalid dec strong, ref %d desc %d s %d w %d\n",
 					  ref->proc->pid, ref->debug_id,
 					  ref->desc, ref->strong, ref->weak);
 			return -EINVAL;
@@ -1133,8 +1143,7 @@ static int binder_dec_ref(struct binder_ref *ref, int strong)
 		}
 	} else {
 		if (ref->weak == 0) {
-			binder_user_error("binder: %d invalid dec weak, "
-					  "ref %d desc %d s %d w %d\n",
+			binder_user_error("%d invalid dec weak, ref %d desc %d s %d w %d\n",
 					  ref->proc->pid, ref->debug_id,
 					  ref->desc, ref->strong, ref->weak);
 			return -EINVAL;
@@ -1179,8 +1188,7 @@ static void binder_send_failed_reply(struct binder_transaction *t,
 			}
 			if (target_thread->return_error == BR_OK) {
 				binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
-					     "binder: send failed reply for "
-					     "transaction %d to %d:%d\n",
+					     "send failed reply for transaction %d to %d:%d\n",
 					      t->debug_id, target_thread->proc->pid,
 					      target_thread->pid);
 
@@ -1188,9 +1196,8 @@ static void binder_send_failed_reply(struct binder_transaction *t,
 				target_thread->return_error = error_code;
 				wake_up_interruptible(&target_thread->wait);
 			} else {
-				pr_err("binder: reply failed, target "
-					"thread, %d:%d, has error code %d "
-					"already\n", target_thread->proc->pid,
+				pr_err("reply failed, target thread, %d:%d, has error code %d already\n",
+					target_thread->proc->pid,
 					target_thread->pid,
 					target_thread->return_error);
 			}
@@ -1199,21 +1206,19 @@ static void binder_send_failed_reply(struct binder_transaction *t,
 			struct binder_transaction *next = t->from_parent;
 
 			binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
-				     "binder: send failed reply "
-				     "for transaction %d, target dead\n",
+				     "send failed reply for transaction %d, target dead\n",
 				     t->debug_id);
 
 			binder_pop_transaction(target_thread, t);
 			if (next == NULL) {
 				binder_debug(BINDER_DEBUG_DEAD_BINDER,
-					     "binder: reply failed,"
-					     " no target thread at root\n");
+					     "reply failed, no target thread at root\n");
 				return;
 			}
 			t = next;
 			binder_debug(BINDER_DEBUG_DEAD_BINDER,
-				     "binder: reply failed, no target "
-				     "thread -- retry %d\n", t->debug_id);
+				     "reply failed, no target thread -- retry %d\n",
+				      t->debug_id);
 		}
 	}
 }
@@ -1226,7 +1231,7 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 	int debug_id = buffer->debug_id;
 
 	binder_debug(BINDER_DEBUG_TRANSACTION,
-		     "binder: %d buffer release %d, size %zd-%zd, failed at %p\n",
+		     "%d buffer release %d, size %zd-%zd, failed at %p\n",
 		     proc->pid, buffer->debug_id,
 		     buffer->data_size, buffer->offsets_size, failed_at);
 
@@ -1243,9 +1248,8 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 		if (*offp > buffer->data_size - sizeof(*fp) ||
 		    buffer->data_size < sizeof(*fp) ||
 		    !IS_ALIGNED(*offp, sizeof(void *))) {
-			pr_err("binder: transaction release %d bad"
-					"offset %zd, size %zd\n", debug_id,
-					*offp, buffer->data_size);
+			pr_err("transaction release %d bad offset %zd, size %zd\n",
+			 debug_id, *offp, buffer->data_size);
 			continue;
 		}
 		fp = (struct flat_binder_object *)(buffer->data + *offp);
@@ -1254,8 +1258,8 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 		case BINDER_TYPE_WEAK_BINDER: {
 			struct binder_node *node = binder_get_node(proc, fp->binder);
 			if (node == NULL) {
-				pr_err("binder: transaction release %d"
-				       " bad node %p\n", debug_id, fp->binder);
+				pr_err("transaction release %d bad node %p\n",
+					debug_id, fp->binder);
 				break;
 			}
 			binder_debug(BINDER_DEBUG_TRANSACTION,
@@ -1267,9 +1271,8 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 		case BINDER_TYPE_WEAK_HANDLE: {
 			struct binder_ref *ref = binder_get_ref(proc, fp->handle);
 			if (ref == NULL) {
-				pr_err("binder: transaction release %d"
-				       " bad handle %ld\n", debug_id,
-				       fp->handle);
+				pr_err("transaction release %d bad handle %ld\n",
+				 debug_id, fp->handle);
 				break;
 			}
 			binder_debug(BINDER_DEBUG_TRANSACTION,
@@ -1286,8 +1289,8 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 			break;
 
 		default:
-			pr_err("binder: transaction release %d bad "
-			       "object type %lx\n", debug_id, fp->type);
+			pr_err("transaction release %d bad object type %lx\n",
+				debug_id, fp->type);
 			break;
 		}
 	}
@@ -1320,17 +1323,14 @@ static void binder_transaction(struct binder_proc *proc,
 	if (reply) {
 		in_reply_to = thread->transaction_stack;
 		if (in_reply_to == NULL) {
-			binder_user_error("binder: %d:%d got reply transaction "
-					  "with no transaction stack\n",
+			binder_user_error("%d:%d got reply transaction with no transaction stack\n",
 					  proc->pid, thread->pid);
 			return_error = BR_FAILED_REPLY;
 			goto err_empty_call_stack;
 		}
 		binder_set_nice(in_reply_to->saved_priority);
 		if (in_reply_to->to_thread != thread) {
-			binder_user_error("binder: %d:%d got reply transaction "
-				"with bad transaction stack,"
-				" transaction %d has target %d:%d\n",
+			binder_user_error("%d:%d got reply transaction with bad transaction stack, transaction %d has target %d:%d\n",
 				proc->pid, thread->pid, in_reply_to->debug_id,
 				in_reply_to->to_proc ?
 				in_reply_to->to_proc->pid : 0,
@@ -1347,9 +1347,7 @@ static void binder_transaction(struct binder_proc *proc,
 			goto err_dead_binder;
 		}
 		if (target_thread->transaction_stack != in_reply_to) {
-			binder_user_error("binder: %d:%d got reply transaction "
-				"with bad target transaction stack %d, "
-				"expected %d\n",
+			binder_user_error("%d:%d got reply transaction with bad target transaction stack %d, expected %d\n",
 				proc->pid, thread->pid,
 				target_thread->transaction_stack ?
 				target_thread->transaction_stack->debug_id : 0,
@@ -1365,8 +1363,7 @@ static void binder_transaction(struct binder_proc *proc,
 			struct binder_ref *ref;
 			ref = binder_get_ref(proc, tr->target.handle);
 			if (ref == NULL) {
-				binder_user_error("binder: %d:%d got "
-					"transaction to invalid handle\n",
+				binder_user_error("%d:%d got transaction to invalid handle\n",
 					proc->pid, thread->pid);
 				return_error = BR_FAILED_REPLY;
 				goto err_invalid_target_handle;
@@ -1389,9 +1386,7 @@ static void binder_transaction(struct binder_proc *proc,
 			struct binder_transaction *tmp;
 			tmp = thread->transaction_stack;
 			if (tmp->to_thread != thread) {
-				binder_user_error("binder: %d:%d got new "
-					"transaction with bad transaction stack"
-					", transaction %d has target %d:%d\n",
+				binder_user_error("%d:%d got new transaction with bad transaction stack, transaction %d has target %d:%d\n",
 					proc->pid, thread->pid, tmp->debug_id,
 					tmp->to_proc ? tmp->to_proc->pid : 0,
 					tmp->to_thread ?
@@ -1436,16 +1431,14 @@ static void binder_transaction(struct binder_proc *proc,
 
 	if (reply)
 		binder_debug(BINDER_DEBUG_TRANSACTION,
-			     "binder: %d:%d BC_REPLY %d -> %d:%d, "
-			     "data %p-%p size %zd-%zd\n",
+			     "%d:%d BC_REPLY %d -> %d:%d, data %p-%p size %zd-%zd\n",
 			     proc->pid, thread->pid, t->debug_id,
 			     target_proc->pid, target_thread->pid,
 			     tr->data.ptr.buffer, tr->data.ptr.offsets,
 			     tr->data_size, tr->offsets_size);
 	else
 		binder_debug(BINDER_DEBUG_TRANSACTION,
-			     "binder: %d:%d BC_TRANSACTION %d -> "
-			     "%d - node %d, data %p-%p size %zd-%zd\n",
+			     "%d:%d BC_TRANSACTION %d -> %d - node %d, data %p-%p size %zd-%zd\n",
 			     proc->pid, thread->pid, t->debug_id,
 			     target_proc->pid, target_node->debug_id,
 			     tr->data.ptr.buffer, tr->data.ptr.offsets,
@@ -1461,6 +1454,9 @@ static void binder_transaction(struct binder_proc *proc,
 	t->code = tr->code;
 	t->flags = tr->flags;
 	t->priority = task_nice(current);
+
+	trace_binder_transaction(reply, t, target_node);
+
 	t->buffer = binder_alloc_buf(target_proc, tr->data_size,
 		tr->offsets_size, !reply && (t->flags & TF_ONE_WAY));
 	if (t->buffer == NULL) {
@@ -1471,27 +1467,27 @@ static void binder_transaction(struct binder_proc *proc,
 	t->buffer->debug_id = t->debug_id;
 	t->buffer->transaction = t;
 	t->buffer->target_node = target_node;
+	trace_binder_transaction_alloc_buf(t->buffer);
 	if (target_node)
 		binder_inc_node(target_node, 1, 0, NULL);
 
 	offp = (size_t *)(t->buffer->data + ALIGN(tr->data_size, sizeof(void *)));
 
 	if (copy_from_user(t->buffer->data, tr->data.ptr.buffer, tr->data_size)) {
-		binder_user_error("binder: %d:%d got transaction with invalid "
-			"data ptr\n", proc->pid, thread->pid);
+		binder_user_error("%d:%d got transaction with invalid data ptr\n",
+				proc->pid, thread->pid);
 		return_error = BR_FAILED_REPLY;
 		goto err_copy_data_failed;
 	}
 	if (copy_from_user(offp, tr->data.ptr.offsets, tr->offsets_size)) {
-		binder_user_error("binder: %d:%d got transaction with invalid "
-			"offsets ptr\n", proc->pid, thread->pid);
+		binder_user_error("%d:%d got transaction with invalid offsets ptr\n",
+				proc->pid, thread->pid);
 		return_error = BR_FAILED_REPLY;
 		goto err_copy_data_failed;
 	}
 	if (!IS_ALIGNED(tr->offsets_size, sizeof(size_t))) {
-		binder_user_error("binder: %d:%d got transaction with "
-			"invalid offsets size, %zd\n",
-			proc->pid, thread->pid, tr->offsets_size);
+		binder_user_error("%d:%d got transaction with invalid offsets size, %zd\n",
+				proc->pid, thread->pid, tr->offsets_size);
 		return_error = BR_FAILED_REPLY;
 		goto err_bad_offset;
 	}
@@ -1501,9 +1497,8 @@ static void binder_transaction(struct binder_proc *proc,
 		if (*offp > t->buffer->data_size - sizeof(*fp) ||
 		    t->buffer->data_size < sizeof(*fp) ||
 		    !IS_ALIGNED(*offp, sizeof(void *))) {
-			binder_user_error("binder: %d:%d got transaction with "
-				"invalid offset, %zd\n",
-				proc->pid, thread->pid, *offp);
+			binder_user_error("%d:%d got transaction with invalid offset, %zd\n",
+					proc->pid, thread->pid, *offp);
 			return_error = BR_FAILED_REPLY;
 			goto err_bad_offset;
 		}
@@ -1523,8 +1518,7 @@ static void binder_transaction(struct binder_proc *proc,
 				node->accept_fds = !!(fp->flags & FLAT_BINDER_FLAG_ACCEPTS_FDS);
 			}
 			if (fp->cookie != node->cookie) {
-				binder_user_error("binder: %d:%d sending u%p "
-					"node %d, cookie mismatch %p != %p\n",
+				binder_user_error("%d:%d sending u%p node %d, cookie mismatch %p != %p\n",
 					proc->pid, thread->pid,
 					fp->binder, node->debug_id,
 					fp->cookie, node->cookie);
@@ -1543,6 +1537,7 @@ static void binder_transaction(struct binder_proc *proc,
 			binder_inc_ref(ref, fp->type == BINDER_TYPE_HANDLE,
 				       &thread->todo);
 
+			trace_binder_transaction_node_to_ref(t, node, ref);
 			binder_debug(BINDER_DEBUG_TRANSACTION,
 				     "        node %d u%p -> ref %d desc %d\n",
 				     node->debug_id, node->ptr, ref->debug_id,
@@ -1552,10 +1547,9 @@ static void binder_transaction(struct binder_proc *proc,
 		case BINDER_TYPE_WEAK_HANDLE: {
 			struct binder_ref *ref = binder_get_ref(proc, fp->handle);
 			if (ref == NULL) {
-				binder_user_error("binder: %d:%d got "
-					"transaction with invalid "
-					"handle, %ld\n", proc->pid,
-					thread->pid, fp->handle);
+				binder_user_error("%d:%d got transaction with invalid handle, %ld\n",
+						proc->pid,
+						thread->pid, fp->handle);
 				return_error = BR_FAILED_REPLY;
 				goto err_binder_get_ref_failed;
 			}
@@ -1567,6 +1561,7 @@ static void binder_transaction(struct binder_proc *proc,
 				fp->binder = ref->node->ptr;
 				fp->cookie = ref->node->cookie;
 				binder_inc_node(ref->node, fp->type == BINDER_TYPE_BINDER, 0, NULL);
+				trace_binder_transaction_ref_to_node(t, ref);
 				binder_debug(BINDER_DEBUG_TRANSACTION,
 					     "        ref %d desc %d -> node %d u%p\n",
 					     ref->debug_id, ref->desc, ref->node->debug_id,
@@ -1580,6 +1575,8 @@ static void binder_transaction(struct binder_proc *proc,
 				}
 				fp->handle = new_ref->desc;
 				binder_inc_ref(new_ref, fp->type == BINDER_TYPE_HANDLE, NULL);
+				trace_binder_transaction_ref_to_ref(t, ref,
+								    new_ref);
 				binder_debug(BINDER_DEBUG_TRANSACTION,
 					     "        ref %d desc %d -> ref %d desc %d (node %d)\n",
 					     ref->debug_id, ref->desc, new_ref->debug_id,
@@ -1593,13 +1590,13 @@ static void binder_transaction(struct binder_proc *proc,
 
 			if (reply) {
 				if (!(in_reply_to->flags & TF_ACCEPT_FDS)) {
-					binder_user_error("binder: %d:%d got reply with fd, %ld, but target does not allow fds\n",
+					binder_user_error("%d:%d got reply with fd, %ld, but target does not allow fds\n",
 						proc->pid, thread->pid, fp->handle);
 					return_error = BR_FAILED_REPLY;
 					goto err_fd_not_allowed;
 				}
 			} else if (!target_node->accept_fds) {
-				binder_user_error("binder: %d:%d got transaction with fd, %ld, but target does not allow fds\n",
+				binder_user_error("%d:%d got transaction with fd, %ld, but target does not allow fds\n",
 					proc->pid, thread->pid, fp->handle);
 				return_error = BR_FAILED_REPLY;
 				goto err_fd_not_allowed;
@@ -1607,7 +1604,7 @@ static void binder_transaction(struct binder_proc *proc,
 
 			file = fget(fp->handle);
 			if (file == NULL) {
-				binder_user_error("binder: %d:%d got transaction with invalid fd, %ld\n",
+				binder_user_error("%d:%d got transaction with invalid fd, %ld\n",
 					proc->pid, thread->pid, fp->handle);
 				return_error = BR_FAILED_REPLY;
 				goto err_fget_failed;
@@ -1619,6 +1616,7 @@ static void binder_transaction(struct binder_proc *proc,
 				goto err_get_unused_fd_failed;
 			}
 			task_fd_install(target_proc, target_fd, file);
+			trace_binder_transaction_fd(t, fp->handle, target_fd);
 			binder_debug(BINDER_DEBUG_TRANSACTION,
 				     "        fd %ld -> %d\n", fp->handle, target_fd);
 			/* TODO: fput? */
@@ -1626,8 +1624,7 @@ static void binder_transaction(struct binder_proc *proc,
 		} break;
 
 		default:
-			binder_user_error("binder: %d:%d got transactio"
-				"n with invalid object type, %lx\n",
+			binder_user_error("%d:%d got transaction with invalid object type, %lx\n",
 				proc->pid, thread->pid, fp->type);
 			return_error = BR_FAILED_REPLY;
 			goto err_bad_object_type;
@@ -1667,6 +1664,7 @@ err_binder_new_node_failed:
 err_bad_object_type:
 err_bad_offset:
 err_copy_data_failed:
+	trace_binder_transaction_failed_buffer_release(t->buffer);
 	binder_transaction_buffer_release(target_proc, t->buffer, offp);
 	t->buffer->transaction = NULL;
 	binder_free_buf(target_proc, t->buffer);
@@ -1683,7 +1681,7 @@ err_dead_binder:
 err_invalid_target_handle:
 err_no_context_mgr_node:
 	binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
-		     "binder: %d:%d transaction failed %d, size %zd-%zd\n",
+		     "%d:%d transaction failed %d, size %zd-%zd\n",
 		     proc->pid, thread->pid, return_error,
 		     tr->data_size, tr->offsets_size);
 
@@ -1712,6 +1710,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 		if (get_user(cmd, (uint32_t __user *)ptr))
 			return -EFAULT;
 		ptr += sizeof(uint32_t);
+		trace_binder_command(cmd);
 		if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.bc)) {
 			binder_stats.bc[_IOC_NR(cmd)]++;
 			proc->stats.bc[_IOC_NR(cmd)]++;
@@ -1734,18 +1733,14 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 				ref = binder_get_ref_for_node(proc,
 					       binder_context_mgr_node);
 				if (ref->desc != target) {
-					binder_user_error("binder: %d:"
-						"%d tried to acquire "
-						"reference to desc 0, "
-						"got %d instead\n",
+					binder_user_error("%d:%d tried to acquire reference to desc 0, got %d instead\n",
 						proc->pid, thread->pid,
 						ref->desc);
 				}
 			} else
 				ref = binder_get_ref(proc, target);
 			if (ref == NULL) {
-				binder_user_error("binder: %d:%d refcou"
-					"nt change on invalid ref %d\n",
+				binder_user_error("%d:%d refcount change on invalid ref %d\n",
 					proc->pid, thread->pid, target);
 				break;
 			}
@@ -1769,7 +1764,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 				break;
 			}
 			binder_debug(BINDER_DEBUG_USER_REFS,
-				     "binder: %d:%d %s ref %d desc %d s %d w %d for node %d\n",
+				     "%d:%d %s ref %d desc %d s %d w %d for node %d\n",
 				     proc->pid, thread->pid, debug_string, ref->debug_id,
 				     ref->desc, ref->strong, ref->weak, ref->node->debug_id);
 			break;
@@ -1788,8 +1783,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 			ptr += sizeof(void *);
 			node = binder_get_node(proc, node_ptr);
 			if (node == NULL) {
-				binder_user_error("binder: %d:%d "
-					"%s u%p no match\n",
+				binder_user_error("%d:%d %s u%p no match\n",
 					proc->pid, thread->pid,
 					cmd == BC_INCREFS_DONE ?
 					"BC_INCREFS_DONE" :
@@ -1798,8 +1792,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 				break;
 			}
 			if (cookie != node->cookie) {
-				binder_user_error("binder: %d:%d %s u%p node %d"
-					" cookie mismatch %p != %p\n",
+				binder_user_error("%d:%d %s u%p node %d cookie mismatch %p != %p\n",
 					proc->pid, thread->pid,
 					cmd == BC_INCREFS_DONE ?
 					"BC_INCREFS_DONE" : "BC_ACQUIRE_DONE",
@@ -1809,9 +1802,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 			}
 			if (cmd == BC_ACQUIRE_DONE) {
 				if (node->pending_strong_ref == 0) {
-					binder_user_error("binder: %d:%d "
-						"BC_ACQUIRE_DONE node %d has "
-						"no pending acquire request\n",
+					binder_user_error("%d:%d BC_ACQUIRE_DONE node %d has no pending acquire request\n",
 						proc->pid, thread->pid,
 						node->debug_id);
 					break;
@@ -1819,9 +1810,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 				node->pending_strong_ref = 0;
 			} else {
 				if (node->pending_weak_ref == 0) {
-					binder_user_error("binder: %d:%d "
-						"BC_INCREFS_DONE node %d has "
-						"no pending increfs request\n",
+					binder_user_error("%d:%d BC_INCREFS_DONE node %d has no pending increfs request\n",
 						proc->pid, thread->pid,
 						node->debug_id);
 					break;
@@ -1830,17 +1819,17 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 			}
 			binder_dec_node(node, cmd == BC_ACQUIRE_DONE, 0);
 			binder_debug(BINDER_DEBUG_USER_REFS,
-				     "binder: %d:%d %s node %d ls %d lw %d\n",
+				     "%d:%d %s node %d ls %d lw %d\n",
 				     proc->pid, thread->pid,
 				     cmd == BC_INCREFS_DONE ? "BC_INCREFS_DONE" : "BC_ACQUIRE_DONE",
 				     node->debug_id, node->local_strong_refs, node->local_weak_refs);
 			break;
 		}
 		case BC_ATTEMPT_ACQUIRE:
-			pr_err("binder: BC_ATTEMPT_ACQUIRE not supported\n");
+			pr_err("BC_ATTEMPT_ACQUIRE not supported\n");
 			return -EINVAL;
 		case BC_ACQUIRE_RESULT:
-			pr_err("binder: BC_ACQUIRE_RESULT not supported\n");
+			pr_err("BC_ACQUIRE_RESULT not supported\n");
 			return -EINVAL;
 
 		case BC_FREE_BUFFER: {
@@ -1853,20 +1842,17 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 
 			buffer = binder_buffer_lookup(proc, data_ptr);
 			if (buffer == NULL) {
-				binder_user_error("binder: %d:%d "
-					"BC_FREE_BUFFER u%p no match\n",
+				binder_user_error("%d:%d BC_FREE_BUFFER u%p no match\n",
 					proc->pid, thread->pid, data_ptr);
 				break;
 			}
 			if (!buffer->allow_user_free) {
-				binder_user_error("binder: %d:%d "
-					"BC_FREE_BUFFER u%p matched "
-					"unreturned buffer\n",
+				binder_user_error("%d:%d BC_FREE_BUFFER u%p matched unreturned buffer\n",
 					proc->pid, thread->pid, data_ptr);
 				break;
 			}
 			binder_debug(BINDER_DEBUG_FREE_BUFFER,
-				     "binder: %d:%d BC_FREE_BUFFER u%p found buffer %d for %s transaction\n",
+				     "%d:%d BC_FREE_BUFFER u%p found buffer %d for %s transaction\n",
 				     proc->pid, thread->pid, data_ptr, buffer->debug_id,
 				     buffer->transaction ? "active" : "finished");
 
@@ -1881,6 +1867,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 				else
 					list_move_tail(buffer->target_node->async_todo.next, &thread->todo);
 			}
+			trace_binder_transaction_buffer_release(buffer);
 			binder_transaction_buffer_release(proc, buffer, NULL);
 			binder_free_buf(proc, buffer);
 			break;
@@ -1899,19 +1886,15 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 
 		case BC_REGISTER_LOOPER:
 			binder_debug(BINDER_DEBUG_THREADS,
-				     "binder: %d:%d BC_REGISTER_LOOPER\n",
+				     "%d:%d BC_REGISTER_LOOPER\n",
 				     proc->pid, thread->pid);
 			if (thread->looper & BINDER_LOOPER_STATE_ENTERED) {
 				thread->looper |= BINDER_LOOPER_STATE_INVALID;
-				binder_user_error("binder: %d:%d ERROR:"
-					" BC_REGISTER_LOOPER called "
-					"after BC_ENTER_LOOPER\n",
+				binder_user_error("%d:%d ERROR: BC_REGISTER_LOOPER called after BC_ENTER_LOOPER\n",
 					proc->pid, thread->pid);
 			} else if (proc->requested_threads == 0) {
 				thread->looper |= BINDER_LOOPER_STATE_INVALID;
-				binder_user_error("binder: %d:%d ERROR:"
-					" BC_REGISTER_LOOPER called "
-					"without request\n",
+				binder_user_error("%d:%d ERROR: BC_REGISTER_LOOPER called without request\n",
 					proc->pid, thread->pid);
 			} else {
 				proc->requested_threads--;
@@ -1921,20 +1904,18 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 			break;
 		case BC_ENTER_LOOPER:
 			binder_debug(BINDER_DEBUG_THREADS,
-				     "binder: %d:%d BC_ENTER_LOOPER\n",
+				     "%d:%d BC_ENTER_LOOPER\n",
 				     proc->pid, thread->pid);
 			if (thread->looper & BINDER_LOOPER_STATE_REGISTERED) {
 				thread->looper |= BINDER_LOOPER_STATE_INVALID;
-				binder_user_error("binder: %d:%d ERROR:"
-					" BC_ENTER_LOOPER called after "
-					"BC_REGISTER_LOOPER\n",
+				binder_user_error("%d:%d ERROR: BC_ENTER_LOOPER called after BC_REGISTER_LOOPER\n",
 					proc->pid, thread->pid);
 			}
 			thread->looper |= BINDER_LOOPER_STATE_ENTERED;
 			break;
 		case BC_EXIT_LOOPER:
 			binder_debug(BINDER_DEBUG_THREADS,
-				     "binder: %d:%d BC_EXIT_LOOPER\n",
+				     "%d:%d BC_EXIT_LOOPER\n",
 				     proc->pid, thread->pid);
 			thread->looper |= BINDER_LOOPER_STATE_EXITED;
 			break;
@@ -1954,8 +1935,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 			ptr += sizeof(void *);
 			ref = binder_get_ref(proc, target);
 			if (ref == NULL) {
-				binder_user_error("binder: %d:%d %s "
-					"invalid ref %d\n",
+				binder_user_error("%d:%d %s invalid ref %d\n",
 					proc->pid, thread->pid,
 					cmd == BC_REQUEST_DEATH_NOTIFICATION ?
 					"BC_REQUEST_DEATH_NOTIFICATION" :
@@ -1965,7 +1945,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 			}
 
 			binder_debug(BINDER_DEBUG_DEATH_NOTIFICATION,
-				     "binder: %d:%d %s %p ref %d desc %d s %d w %d for node %d\n",
+				     "%d:%d %s %p ref %d desc %d s %d w %d for node %d\n",
 				     proc->pid, thread->pid,
 				     cmd == BC_REQUEST_DEATH_NOTIFICATION ?
 				     "BC_REQUEST_DEATH_NOTIFICATION" :
@@ -1975,10 +1955,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 
 			if (cmd == BC_REQUEST_DEATH_NOTIFICATION) {
 				if (ref->death) {
-					binder_user_error("binder: %d:%"
-						"d BC_REQUEST_DEATH_NOTI"
-						"FICATION death notific"
-						"ation already set\n",
+					binder_user_error("%d:%d BC_REQUEST_DEATH_NOTIFICATION death notification already set\n",
 						proc->pid, thread->pid);
 					break;
 				}
@@ -1986,8 +1963,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 				if (death == NULL) {
 					thread->return_error = BR_ERROR;
 					binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
-						     "binder: %d:%d "
-						     "BC_REQUEST_DEATH_NOTIFICATION failed\n",
+						     "%d:%d BC_REQUEST_DEATH_NOTIFICATION failed\n",
 						     proc->pid, thread->pid);
 					break;
 				}
@@ -2006,20 +1982,13 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 				}
 			} else {
 				if (ref->death == NULL) {
-					binder_user_error("binder: %d:%"
-						"d BC_CLEAR_DEATH_NOTIFI"
-						"CATION death notificat"
-						"ion not active\n",
+					binder_user_error("%d:%d BC_CLEAR_DEATH_NOTIFICATION death notification not active\n",
 						proc->pid, thread->pid);
 					break;
 				}
 				death = ref->death;
 				if (death->cookie != cookie) {
-					binder_user_error("binder: %d:%"
-						"d BC_CLEAR_DEATH_NOTIFI"
-						"CATION death notificat"
-						"ion cookie mismatch "
-						"%p != %p\n",
+					binder_user_error("%d:%d BC_CLEAR_DEATH_NOTIFICATION death notification cookie mismatch %p != %p\n",
 						proc->pid, thread->pid,
 						death->cookie, cookie);
 					break;
@@ -2055,11 +2024,10 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 				}
 			}
 			binder_debug(BINDER_DEBUG_DEAD_BINDER,
-				     "binder: %d:%d BC_DEAD_BINDER_DONE %p found %p\n",
+				     "%d:%d BC_DEAD_BINDER_DONE %p found %p\n",
 				     proc->pid, thread->pid, cookie, death);
 			if (death == NULL) {
-				binder_user_error("binder: %d:%d BC_DEAD"
-					"_BINDER_DONE %p not found\n",
+				binder_user_error("%d:%d BC_DEAD_BINDER_DONE %p not found\n",
 					proc->pid, thread->pid, cookie);
 				break;
 			}
@@ -2077,7 +2045,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 		} break;
 
 		default:
-			pr_err("binder: %d:%d unknown command %d\n",
+			pr_err("%d:%d unknown command %d\n",
 			       proc->pid, thread->pid, cmd);
 			return -EINVAL;
 		}
@@ -2089,6 +2057,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 void binder_stat_br(struct binder_proc *proc, struct binder_thread *thread,
 		    uint32_t cmd)
 {
+	trace_binder_return(cmd);
 	if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.br)) {
 		binder_stats.br[_IOC_NR(cmd)]++;
 		proc->stats.br[_IOC_NR(cmd)]++;
@@ -2135,6 +2104,7 @@ retry:
 			if (put_user(thread->return_error2, (uint32_t __user *)ptr))
 				return -EFAULT;
 			ptr += sizeof(uint32_t);
+			binder_stat_br(proc, thread, thread->return_error2);
 			if (ptr == end)
 				goto done;
 			thread->return_error2 = BR_OK;
@@ -2142,6 +2112,7 @@ retry:
 		if (put_user(thread->return_error, (uint32_t __user *)ptr))
 			return -EFAULT;
 		ptr += sizeof(uint32_t);
+		binder_stat_br(proc, thread, thread->return_error);
 		thread->return_error = BR_OK;
 		goto done;
 	}
@@ -2150,13 +2121,16 @@ retry:
 	thread->looper |= BINDER_LOOPER_STATE_WAITING;
 	if (wait_for_proc_work)
 		proc->ready_threads++;
-	mutex_unlock(&binder_lock);
+
+	binder_unlock(__func__);
+
+	trace_binder_wait_for_work(wait_for_proc_work,
+				   !!thread->transaction_stack,
+				   !list_empty(&thread->todo));
 	if (wait_for_proc_work) {
 		if (!(thread->looper & (BINDER_LOOPER_STATE_REGISTERED |
 					BINDER_LOOPER_STATE_ENTERED))) {
-			binder_user_error("binder: %d:%d ERROR: Thread waiting "
-				"for process work before calling BC_REGISTER_"
-				"LOOPER or BC_ENTER_LOOPER (state %x)\n",
+			binder_user_error("%d:%d ERROR: Thread waiting for process work before calling BC_REGISTER_LOOPER or BC_ENTER_LOOPER (state %x)\n",
 				proc->pid, thread->pid, thread->looper);
 			wait_event_interruptible(binder_user_error_wait,
 						 binder_stop_on_user_error < 2);
@@ -2174,7 +2148,9 @@ retry:
 		} else
 			ret = wait_event_interruptible(thread->wait, binder_has_thread_work(thread));
 	}
-	mutex_lock(&binder_lock);
+
+	binder_lock(__func__);
+
 	if (wait_for_proc_work)
 		proc->ready_threads--;
 	thread->looper &= ~BINDER_LOOPER_STATE_WAITING;
@@ -2213,7 +2189,7 @@ retry:
 
 			binder_stat_br(proc, thread, cmd);
 			binder_debug(BINDER_DEBUG_TRANSACTION_COMPLETE,
-				     "binder: %d:%d BR_TRANSACTION_COMPLETE\n",
+				     "%d:%d BR_TRANSACTION_COMPLETE\n",
 				     proc->pid, thread->pid);
 
 			list_del(&w->entry);
@@ -2260,13 +2236,13 @@ retry:
 
 				binder_stat_br(proc, thread, cmd);
 				binder_debug(BINDER_DEBUG_USER_REFS,
-					     "binder: %d:%d %s %d u%p c%p\n",
+					     "%d:%d %s %d u%p c%p\n",
 					     proc->pid, thread->pid, cmd_name, node->debug_id, node->ptr, node->cookie);
 			} else {
 				list_del_init(&w->entry);
 				if (!weak && !strong) {
 					binder_debug(BINDER_DEBUG_INTERNAL_REFS,
-						     "binder: %d:%d node %d u%p c%p deleted\n",
+						     "%d:%d node %d u%p c%p deleted\n",
 						     proc->pid, thread->pid, node->debug_id,
 						     node->ptr, node->cookie);
 					rb_erase(&node->rb_node, &proc->nodes);
@@ -2274,7 +2250,7 @@ retry:
 					binder_stats_deleted(BINDER_STAT_NODE);
 				} else {
 					binder_debug(BINDER_DEBUG_INTERNAL_REFS,
-						     "binder: %d:%d node %d u%p c%p state unchanged\n",
+						     "%d:%d node %d u%p c%p state unchanged\n",
 						     proc->pid, thread->pid, node->debug_id, node->ptr,
 						     node->cookie);
 				}
@@ -2297,8 +2273,9 @@ retry:
 			if (put_user(death->cookie, (void * __user *)ptr))
 				return -EFAULT;
 			ptr += sizeof(void *);
+			binder_stat_br(proc, thread, cmd);
 			binder_debug(BINDER_DEBUG_DEATH_NOTIFICATION,
-				     "binder: %d:%d %s %p\n",
+				     "%d:%d %s %p\n",
 				      proc->pid, thread->pid,
 				      cmd == BR_DEAD_BINDER ?
 				      "BR_DEAD_BINDER" :
@@ -2344,7 +2321,7 @@ retry:
 		if (t->from) {
 			struct task_struct *sender = t->from->proc->tsk;
 			tr.sender_pid = task_tgid_nr_ns(sender,
-							current->nsproxy->pid_ns);
+							task_active_pid_ns(current));
 		} else {
 			tr.sender_pid = 0;
 		}
@@ -2364,10 +2341,10 @@ retry:
 			return -EFAULT;
 		ptr += sizeof(tr);
 
+		trace_binder_transaction_received(t);
 		binder_stat_br(proc, thread, cmd);
 		binder_debug(BINDER_DEBUG_TRANSACTION,
-			     "binder: %d:%d %s %d %d:%d, cmd %d"
-			     "size %zd-%zd ptr %p-%p\n",
+			     "%d:%d %s %d %d:%d, cmd %d size %zd-%zd ptr %p-%p\n",
 			     proc->pid, thread->pid,
 			     (cmd == BR_TRANSACTION) ? "BR_TRANSACTION" :
 			     "BR_REPLY",
@@ -2400,10 +2377,11 @@ done:
 	     /*spawn a new thread if we leave this out */) {
 		proc->requested_threads++;
 		binder_debug(BINDER_DEBUG_THREADS,
-			     "binder: %d:%d BR_SPAWN_LOOPER\n",
+			     "%d:%d BR_SPAWN_LOOPER\n",
 			     proc->pid, thread->pid);
 		if (put_user(BR_SPAWN_LOOPER, (uint32_t __user *)buffer))
 			return -EFAULT;
+		binder_stat_br(proc, thread, BR_SPAWN_LOOPER);
 	}
 	return 0;
 }
@@ -2424,7 +2402,7 @@ static void binder_release_work(struct list_head *list)
 				binder_send_failed_reply(t, BR_DEAD_REPLY);
 			} else {
 				binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
-					"binder: undelivered transaction %d\n",
+					"undelivered transaction %d\n",
 					t->debug_id);
 				t->buffer->transaction = NULL;
 				kfree(t);
@@ -2433,7 +2411,7 @@ static void binder_release_work(struct list_head *list)
 		} break;
 		case BINDER_WORK_TRANSACTION_COMPLETE: {
 			binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
-				"binder: undelivered TRANSACTION_COMPLETE\n");
+				"undelivered TRANSACTION_COMPLETE\n");
 			kfree(w);
 			binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
 		} break;
@@ -2443,13 +2421,13 @@ static void binder_release_work(struct list_head *list)
 
 			death = container_of(w, struct binder_ref_death, work);
 			binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
-				"binder: undelivered death notification, %p\n",
+				"undelivered death notification, %p\n",
 				death->cookie);
 			kfree(death);
 			binder_stats_deleted(BINDER_STAT_DEATH);
 		} break;
 		default:
-			pr_err("binder: unexpected work type, %d, not freed\n",
+			pr_err("unexpected work type, %d, not freed\n",
 			       w->type);
 			break;
 		}
@@ -2506,8 +2484,8 @@ static int binder_free_thread(struct binder_proc *proc,
 	while (t) {
 		active_transactions++;
 		binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
-			     "binder: release %d:%d transaction %d "
-			     "%s, still active\n", proc->pid, thread->pid,
+			     "release %d:%d transaction %d %s, still active\n",
+			      proc->pid, thread->pid,
 			     t->debug_id,
 			     (t->to_thread == thread) ? "in" : "out");
 
@@ -2540,12 +2518,14 @@ static unsigned int binder_poll(struct file *filp,
 	struct binder_thread *thread = NULL;
 	int wait_for_proc_work;
 
-	mutex_lock(&binder_lock);
+	binder_lock(__func__);
+
 	thread = binder_get_thread(proc);
 
 	wait_for_proc_work = thread->transaction_stack == NULL &&
 		list_empty(&thread->todo) && thread->return_error == BR_OK;
-	mutex_unlock(&binder_lock);
+
+	binder_unlock(__func__);
 
 	if (wait_for_proc_work) {
 		if (binder_has_proc_work(proc, thread))
@@ -2573,11 +2553,13 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 	/*pr_info("binder_ioctl: %d:%d %x %lx\n", proc->pid, current->pid, cmd, arg);*/
 
+	trace_binder_ioctl(cmd, arg);
+
 	ret = wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
 	if (ret)
-		return ret;
+		goto err_unlocked;
 
-	mutex_lock(&binder_lock);
+	binder_lock(__func__);
 	thread = binder_get_thread(proc);
 	if (thread == NULL) {
 		ret = -ENOMEM;
@@ -2596,12 +2578,13 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 			goto err;
 		}
 		binder_debug(BINDER_DEBUG_READ_WRITE,
-			     "binder: %d:%d write %ld at %08lx, read %ld at %08lx\n",
-			     proc->pid, thread->pid, bwr.write_size, bwr.write_buffer,
-			     bwr.read_size, bwr.read_buffer);
+			     "%d:%d write %ld at %08lx, read %ld at %08lx\n",
+			     proc->pid, thread->pid, bwr.write_size,
+			     bwr.write_buffer, bwr.read_size, bwr.read_buffer);
 
 		if (bwr.write_size > 0) {
 			ret = binder_thread_write(proc, thread, (void __user *)bwr.write_buffer, bwr.write_size, &bwr.write_consumed);
+			trace_binder_write_done(ret);
 			if (ret < 0) {
 				bwr.read_consumed = 0;
 				if (copy_to_user(ubuf, &bwr, sizeof(bwr)))
@@ -2611,6 +2594,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		}
 		if (bwr.read_size > 0) {
 			ret = binder_thread_read(proc, thread, (void __user *)bwr.read_buffer, bwr.read_size, &bwr.read_consumed, filp->f_flags & O_NONBLOCK);
+			trace_binder_read_done(ret);
 			if (!list_empty(&proc->todo))
 				wake_up_interruptible(&proc->wait);
 			if (ret < 0) {
@@ -2620,7 +2604,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 			}
 		}
 		binder_debug(BINDER_DEBUG_READ_WRITE,
-			     "binder: %d:%d wrote %ld of %ld, read return %ld of %ld\n",
+			     "%d:%d wrote %ld of %ld, read return %ld of %ld\n",
 			     proc->pid, thread->pid, bwr.write_consumed, bwr.write_size,
 			     bwr.read_consumed, bwr.read_size);
 		if (copy_to_user(ubuf, &bwr, sizeof(bwr))) {
@@ -2637,14 +2621,13 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		break;
 	case BINDER_SET_CONTEXT_MGR:
 		if (binder_context_mgr_node != NULL) {
-			pr_err("binder: BINDER_SET_CONTEXT_MGR already set\n");
+			pr_err("BINDER_SET_CONTEXT_MGR already set\n");
 			ret = -EBUSY;
 			goto err;
 		}
 		if (uid_valid(binder_context_mgr_uid)) {
 			if (!uid_eq(binder_context_mgr_uid, current->cred->euid)) {
-				pr_err("binder: BINDER_SET_"
-				       "CONTEXT_MGR bad uid %d != %d\n",
+				pr_err("BINDER_SET_CONTEXT_MGR bad uid %d != %d\n",
 				       from_kuid(&init_user_ns, current->cred->euid),
 				       from_kuid(&init_user_ns, binder_context_mgr_uid));
 				ret = -EPERM;
@@ -2663,7 +2646,7 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		binder_context_mgr_node->has_weak_ref = 1;
 		break;
 	case BINDER_THREAD_EXIT:
-		binder_debug(BINDER_DEBUG_THREADS, "binder: %d:%d exit\n",
+		binder_debug(BINDER_DEBUG_THREADS, "%d:%d exit\n",
 			     proc->pid, thread->pid);
 		binder_free_thread(proc, thread);
 		thread = NULL;
@@ -2686,10 +2669,12 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 err:
 	if (thread)
 		thread->looper &= ~BINDER_LOOPER_STATE_NEED_RETURN;
-	mutex_unlock(&binder_lock);
+	binder_unlock(__func__);
 	wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
 	if (ret && ret != -ERESTARTSYS)
-		pr_info("binder: %d:%d ioctl %x %lx returned %d\n", proc->pid, current->pid, cmd, arg, ret);
+		pr_info("%d:%d ioctl %x %lx returned %d\n", proc->pid, current->pid, cmd, arg, ret);
+err_unlocked:
+	trace_binder_ioctl_done(ret);
 	return ret;
 }
 
@@ -2697,7 +2682,7 @@ static void binder_vma_open(struct vm_area_struct *vma)
 {
 	struct binder_proc *proc = vma->vm_private_data;
 	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
-		     "binder: %d open vm area %lx-%lx (%ld K) vma %lx pagep %lx\n",
+		     "%d open vm area %lx-%lx (%ld K) vma %lx pagep %lx\n",
 		     proc->pid, vma->vm_start, vma->vm_end,
 		     (vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
 		     (unsigned long)pgprot_val(vma->vm_page_prot));
@@ -2707,7 +2692,7 @@ static void binder_vma_close(struct vm_area_struct *vma)
 {
 	struct binder_proc *proc = vma->vm_private_data;
 	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
-		     "binder: %d close vm area %lx-%lx (%ld K) vma %lx pagep %lx\n",
+		     "%d close vm area %lx-%lx (%ld K) vma %lx pagep %lx\n",
 		     proc->pid, vma->vm_start, vma->vm_end,
 		     (vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
 		     (unsigned long)pgprot_val(vma->vm_page_prot));
@@ -2835,13 +2820,16 @@ static int binder_open(struct inode *nodp, struct file *filp)
 	INIT_LIST_HEAD(&proc->todo);
 	init_waitqueue_head(&proc->wait);
 	proc->default_priority = task_nice(current);
-	mutex_lock(&binder_lock);
+
+	binder_lock(__func__);
+
 	binder_stats_created(BINDER_STAT_PROC);
 	hlist_add_head(&proc->proc_node, &binder_procs);
 	proc->pid = current->group_leader->pid;
 	INIT_LIST_HEAD(&proc->delivered_death);
 	filp->private_data = proc;
-	mutex_unlock(&binder_lock);
+
+	binder_unlock(__func__);
 
 	if (binder_debugfs_dir_entry_proc) {
 		char strbuf[11];
@@ -2949,9 +2937,8 @@ static void binder_deferred_release(struct binder_proc *proc)
 				}
 			}
 			binder_debug(BINDER_DEBUG_DEAD_BINDER,
-				     "binder: node %d now dead, "
-				     "refs %d, death %d\n", node->debug_id,
-				     incoming_refs, death);
+				     "node %d now dead, refs %d, death %d\n",
+				      node->debug_id, incoming_refs, death);
 		}
 	}
 	outgoing_refs = 0;
@@ -2972,8 +2959,7 @@ static void binder_deferred_release(struct binder_proc *proc)
 		if (t) {
 			t->buffer = NULL;
 			buffer->transaction = NULL;
-			pr_err("binder: release proc %d, "
-			       "transaction %d, not freed\n",
+			pr_err("release proc %d, transaction %d, not freed\n",
 			       proc->pid, t->debug_id);
 			/*BUG();*/
 		}
@@ -2990,8 +2976,7 @@ static void binder_deferred_release(struct binder_proc *proc)
 			if (proc->pages[i]) {
 				void *page_addr = proc->buffer + i * PAGE_SIZE;
 				binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
-					     "binder_release: %d: "
-					     "page %d at %p not freed\n",
+					     "binder_release: %d: page %d at %p not freed\n",
 					     proc->pid, i,
 					     page_addr);
 				unmap_kernel_range((unsigned long)page_addr,
@@ -3007,9 +2992,7 @@ static void binder_deferred_release(struct binder_proc *proc)
 	put_task_struct(proc->tsk);
 
 	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
-		     "binder_release: %d threads %d, nodes %d (ref %d), "
-		     "refs %d, active transactions %d, buffers %d, "
-		     "pages %d\n",
+		     "binder_release: %d threads %d, nodes %d (ref %d), refs %d, active transactions %d, buffers %d, pages %d\n",
 		     proc->pid, threads, nodes, incoming_refs, outgoing_refs,
 		     active_transactions, buffers, page_count);
 
@@ -3023,7 +3006,7 @@ static void binder_deferred_func(struct work_struct *work)
 
 	int defer;
 	do {
-		mutex_lock(&binder_lock);
+		binder_lock(__func__);
 		mutex_lock(&binder_deferred_lock);
 		if (!hlist_empty(&binder_deferred_list)) {
 			proc = hlist_entry(binder_deferred_list.first,
@@ -3050,7 +3033,7 @@ static void binder_deferred_func(struct work_struct *work)
 		if (defer & BINDER_DEFERRED_RELEASE)
 			binder_deferred_release(proc); /* frees proc */
 
-		mutex_unlock(&binder_lock);
+		binder_unlock(__func__);
 		if (files)
 			put_files_struct(files);
 	} while (proc);
@@ -3391,7 +3374,7 @@ static int binder_state_show(struct seq_file *m, void *unused)
 	int do_lock = !binder_debug_no_lock;
 
 	if (do_lock)
-		mutex_lock(&binder_lock);
+		binder_lock(__func__);
 
 	seq_puts(m, "binder state:\n");
 
@@ -3403,7 +3386,7 @@ static int binder_state_show(struct seq_file *m, void *unused)
 	hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
 		print_binder_proc(m, proc, 1);
 	if (do_lock)
-		mutex_unlock(&binder_lock);
+		binder_unlock(__func__);
 	return 0;
 }
 
@@ -3414,7 +3397,7 @@ static int binder_stats_show(struct seq_file *m, void *unused)
 	int do_lock = !binder_debug_no_lock;
 
 	if (do_lock)
-		mutex_lock(&binder_lock);
+		binder_lock(__func__);
 
 	seq_puts(m, "binder stats:\n");
 
@@ -3423,7 +3406,7 @@ static int binder_stats_show(struct seq_file *m, void *unused)
 	hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
 		print_binder_proc_stats(m, proc);
 	if (do_lock)
-		mutex_unlock(&binder_lock);
+		binder_unlock(__func__);
 	return 0;
 }
 
@@ -3434,13 +3417,13 @@ static int binder_transactions_show(struct seq_file *m, void *unused)
 	int do_lock = !binder_debug_no_lock;
 
 	if (do_lock)
-		mutex_lock(&binder_lock);
+		binder_lock(__func__);
 
 	seq_puts(m, "binder transactions:\n");
 	hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
 		print_binder_proc(m, proc, 0);
 	if (do_lock)
-		mutex_unlock(&binder_lock);
+		binder_unlock(__func__);
 	return 0;
 }
 
@@ -3450,11 +3433,11 @@ static int binder_proc_show(struct seq_file *m, void *unused)
 	int do_lock = !binder_debug_no_lock;
 
 	if (do_lock)
-		mutex_lock(&binder_lock);
+		binder_lock(__func__);
 	seq_puts(m, "binder proc state:\n");
 	print_binder_proc(m, proc, 1);
 	if (do_lock)
-		mutex_unlock(&binder_lock);
+		binder_unlock(__func__);
 	return 0;
 }
 
@@ -3549,4 +3532,7 @@ static int __init binder_init(void)
 
 device_initcall(binder_init);
 
+#define CREATE_TRACE_POINTS
+#include "binder_trace.h"
+
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/android/binder_trace.h b/drivers/staging/android/binder_trace.h
new file mode 100644
index 000000000000..82a567c2af67
--- /dev/null
+++ b/drivers/staging/android/binder_trace.h
@@ -0,0 +1,327 @@
+/*
+ * Copyright (C) 2012 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM binder
+
+#if !defined(_BINDER_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _BINDER_TRACE_H
+
+#include <linux/tracepoint.h>
+
+struct binder_buffer;
+struct binder_node;
+struct binder_proc;
+struct binder_ref;
+struct binder_thread;
+struct binder_transaction;
+
+TRACE_EVENT(binder_ioctl,
+	TP_PROTO(unsigned int cmd, unsigned long arg),
+	TP_ARGS(cmd, arg),
+
+	TP_STRUCT__entry(
+		__field(unsigned int, cmd)
+		__field(unsigned long, arg)
+	),
+	TP_fast_assign(
+		__entry->cmd = cmd;
+		__entry->arg = arg;
+	),
+	TP_printk("cmd=0x%x arg=0x%lx", __entry->cmd, __entry->arg)
+);
+
+DECLARE_EVENT_CLASS(binder_lock_class,
+	TP_PROTO(const char *tag),
+	TP_ARGS(tag),
+	TP_STRUCT__entry(
+		__field(const char *, tag)
+	),
+	TP_fast_assign(
+		__entry->tag = tag;
+	),
+	TP_printk("tag=%s", __entry->tag)
+);
+
+#define DEFINE_BINDER_LOCK_EVENT(name)	\
+DEFINE_EVENT(binder_lock_class, name,	\
+	TP_PROTO(const char *func), \
+	TP_ARGS(func))
+
+DEFINE_BINDER_LOCK_EVENT(binder_lock);
+DEFINE_BINDER_LOCK_EVENT(binder_locked);
+DEFINE_BINDER_LOCK_EVENT(binder_unlock);
+
+DECLARE_EVENT_CLASS(binder_function_return_class,
+	TP_PROTO(int ret),
+	TP_ARGS(ret),
+	TP_STRUCT__entry(
+		__field(int, ret)
+	),
+	TP_fast_assign(
+		__entry->ret = ret;
+	),
+	TP_printk("ret=%d", __entry->ret)
+);
+
+#define DEFINE_BINDER_FUNCTION_RETURN_EVENT(name)	\
+DEFINE_EVENT(binder_function_return_class, name,	\
+	TP_PROTO(int ret), \
+	TP_ARGS(ret))
+
+DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_ioctl_done);
+DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_write_done);
+DEFINE_BINDER_FUNCTION_RETURN_EVENT(binder_read_done);
+
+TRACE_EVENT(binder_wait_for_work,
+	TP_PROTO(bool proc_work, bool transaction_stack, bool thread_todo),
+	TP_ARGS(proc_work, transaction_stack, thread_todo),
+
+	TP_STRUCT__entry(
+		__field(bool, proc_work)
+		__field(bool, transaction_stack)
+		__field(bool, thread_todo)
+	),
+	TP_fast_assign(
+		__entry->proc_work = proc_work;
+		__entry->transaction_stack = transaction_stack;
+		__entry->thread_todo = thread_todo;
+	),
+	TP_printk("proc_work=%d transaction_stack=%d thread_todo=%d",
+		  __entry->proc_work, __entry->transaction_stack,
+		  __entry->thread_todo)
+);
+
+TRACE_EVENT(binder_transaction,
+	TP_PROTO(bool reply, struct binder_transaction *t,
+		 struct binder_node *target_node),
+	TP_ARGS(reply, t, target_node),
+	TP_STRUCT__entry(
+		__field(int, debug_id)
+		__field(int, target_node)
+		__field(int, to_proc)
+		__field(int, to_thread)
+		__field(int, reply)
+		__field(unsigned int, code)
+		__field(unsigned int, flags)
+	),
+	TP_fast_assign(
+		__entry->debug_id = t->debug_id;
+		__entry->target_node = target_node ? target_node->debug_id : 0;
+		__entry->to_proc = t->to_proc->pid;
+		__entry->to_thread = t->to_thread ? t->to_thread->pid : 0;
+		__entry->reply = reply;
+		__entry->code = t->code;
+		__entry->flags = t->flags;
+	),
+	TP_printk("transaction=%d dest_node=%d dest_proc=%d dest_thread=%d reply=%d flags=0x%x code=0x%x",
+		  __entry->debug_id, __entry->target_node,
+		  __entry->to_proc, __entry->to_thread,
+		  __entry->reply, __entry->flags, __entry->code)
+);
+
+TRACE_EVENT(binder_transaction_received,
+	TP_PROTO(struct binder_transaction *t),
+	TP_ARGS(t),
+
+	TP_STRUCT__entry(
+		__field(int, debug_id)
+	),
+	TP_fast_assign(
+		__entry->debug_id = t->debug_id;
+	),
+	TP_printk("transaction=%d", __entry->debug_id)
+);
+
+TRACE_EVENT(binder_transaction_node_to_ref,
+	TP_PROTO(struct binder_transaction *t, struct binder_node *node,
+		 struct binder_ref *ref),
+	TP_ARGS(t, node, ref),
+
+	TP_STRUCT__entry(
+		__field(int, debug_id)
+		__field(int, node_debug_id)
+		__field(void __user *, node_ptr)
+		__field(int, ref_debug_id)
+		__field(uint32_t, ref_desc)
+	),
+	TP_fast_assign(
+		__entry->debug_id = t->debug_id;
+		__entry->node_debug_id = node->debug_id;
+		__entry->node_ptr = node->ptr;
+		__entry->ref_debug_id = ref->debug_id;
+		__entry->ref_desc = ref->desc;
+	),
+	TP_printk("transaction=%d node=%d src_ptr=0x%p ==> dest_ref=%d dest_desc=%d",
+		  __entry->debug_id, __entry->node_debug_id, __entry->node_ptr,
+		  __entry->ref_debug_id, __entry->ref_desc)
+);
+
+TRACE_EVENT(binder_transaction_ref_to_node,
+	TP_PROTO(struct binder_transaction *t, struct binder_ref *ref),
+	TP_ARGS(t, ref),
+
+	TP_STRUCT__entry(
+		__field(int, debug_id)
+		__field(int, ref_debug_id)
+		__field(uint32_t, ref_desc)
+		__field(int, node_debug_id)
+		__field(void __user *, node_ptr)
+	),
+	TP_fast_assign(
+		__entry->debug_id = t->debug_id;
+		__entry->ref_debug_id = ref->debug_id;
+		__entry->ref_desc = ref->desc;
+		__entry->node_debug_id = ref->node->debug_id;
+		__entry->node_ptr = ref->node->ptr;
+	),
+	TP_printk("transaction=%d node=%d src_ref=%d src_desc=%d ==> dest_ptr=0x%p",
+		  __entry->debug_id, __entry->node_debug_id,
+		  __entry->ref_debug_id, __entry->ref_desc, __entry->node_ptr)
+);
+
+TRACE_EVENT(binder_transaction_ref_to_ref,
+	TP_PROTO(struct binder_transaction *t, struct binder_ref *src_ref,
+		 struct binder_ref *dest_ref),
+	TP_ARGS(t, src_ref, dest_ref),
+
+	TP_STRUCT__entry(
+		__field(int, debug_id)
+		__field(int, node_debug_id)
+		__field(int, src_ref_debug_id)
+		__field(uint32_t, src_ref_desc)
+		__field(int, dest_ref_debug_id)
+		__field(uint32_t, dest_ref_desc)
+	),
+	TP_fast_assign(
+		__entry->debug_id = t->debug_id;
+		__entry->node_debug_id = src_ref->node->debug_id;
+		__entry->src_ref_debug_id = src_ref->debug_id;
+		__entry->src_ref_desc = src_ref->desc;
+		__entry->dest_ref_debug_id = dest_ref->debug_id;
+		__entry->dest_ref_desc = dest_ref->desc;
+	),
+	TP_printk("transaction=%d node=%d src_ref=%d src_desc=%d ==> dest_ref=%d dest_desc=%d",
+		  __entry->debug_id, __entry->node_debug_id,
+		  __entry->src_ref_debug_id, __entry->src_ref_desc,
+		  __entry->dest_ref_debug_id, __entry->dest_ref_desc)
+);
+
+TRACE_EVENT(binder_transaction_fd,
+	TP_PROTO(struct binder_transaction *t, int src_fd, int dest_fd),
+	TP_ARGS(t, src_fd, dest_fd),
+
+	TP_STRUCT__entry(
+		__field(int, debug_id)
+		__field(int, src_fd)
+		__field(int, dest_fd)
+	),
+	TP_fast_assign(
+		__entry->debug_id = t->debug_id;
+		__entry->src_fd = src_fd;
+		__entry->dest_fd = dest_fd;
+	),
+	TP_printk("transaction=%d src_fd=%d ==> dest_fd=%d",
+		  __entry->debug_id, __entry->src_fd, __entry->dest_fd)
+);
+
+DECLARE_EVENT_CLASS(binder_buffer_class,
+	TP_PROTO(struct binder_buffer *buf),
+	TP_ARGS(buf),
+	TP_STRUCT__entry(
+		__field(int, debug_id)
+		__field(size_t, data_size)
+		__field(size_t, offsets_size)
+	),
+	TP_fast_assign(
+		__entry->debug_id = buf->debug_id;
+		__entry->data_size = buf->data_size;
+		__entry->offsets_size = buf->offsets_size;
+	),
+	TP_printk("transaction=%d data_size=%zd offsets_size=%zd",
+		  __entry->debug_id, __entry->data_size, __entry->offsets_size)
+);
+
+DEFINE_EVENT(binder_buffer_class, binder_transaction_alloc_buf,
+	TP_PROTO(struct binder_buffer *buffer),
+	TP_ARGS(buffer));
+
+DEFINE_EVENT(binder_buffer_class, binder_transaction_buffer_release,
+	TP_PROTO(struct binder_buffer *buffer),
+	TP_ARGS(buffer));
+
+DEFINE_EVENT(binder_buffer_class, binder_transaction_failed_buffer_release,
+	TP_PROTO(struct binder_buffer *buffer),
+	TP_ARGS(buffer));
+
+TRACE_EVENT(binder_update_page_range,
+	TP_PROTO(struct binder_proc *proc, bool allocate,
+		 void *start, void *end),
+	TP_ARGS(proc, allocate, start, end),
+	TP_STRUCT__entry(
+		__field(int, proc)
+		__field(bool, allocate)
+		__field(size_t, offset)
+		__field(size_t, size)
+	),
+	TP_fast_assign(
+		__entry->proc = proc->pid;
+		__entry->allocate = allocate;
+		__entry->offset = start - proc->buffer;
+		__entry->size = end - start;
+	),
+	TP_printk("proc=%d allocate=%d offset=%zu size=%zu",
+		  __entry->proc, __entry->allocate,
+		  __entry->offset, __entry->size)
+);
+
+TRACE_EVENT(binder_command,
+	TP_PROTO(uint32_t cmd),
+	TP_ARGS(cmd),
+	TP_STRUCT__entry(
+		__field(uint32_t, cmd)
+	),
+	TP_fast_assign(
+		__entry->cmd = cmd;
+	),
+	TP_printk("cmd=0x%x %s",
+		  __entry->cmd,
+		  _IOC_NR(__entry->cmd) < ARRAY_SIZE(binder_command_strings) ?
+			  binder_command_strings[_IOC_NR(__entry->cmd)] :
+			  "unknown")
+);
+
+TRACE_EVENT(binder_return,
+	TP_PROTO(uint32_t cmd),
+	TP_ARGS(cmd),
+	TP_STRUCT__entry(
+		__field(uint32_t, cmd)
+	),
+	TP_fast_assign(
+		__entry->cmd = cmd;
+	),
+	TP_printk("cmd=0x%x %s",
+		  __entry->cmd,
+		  _IOC_NR(__entry->cmd) < ARRAY_SIZE(binder_return_strings) ?
+			  binder_return_strings[_IOC_NR(__entry->cmd)] :
+			  "unknown")
+);
+
+#endif /* _BINDER_TRACE_H */
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE binder_trace
+#include <trace/define_trace.h>
diff --git a/drivers/staging/android/logger.c b/drivers/staging/android/logger.c
index 1d5ed475364b..dbc63cbb4d3a 100644
--- a/drivers/staging/android/logger.c
+++ b/drivers/staging/android/logger.c
@@ -676,4 +676,25 @@ static int __init logger_init(void)
 out:
 	return ret;
 }
+
+static void __exit logger_exit(void)
+{
+	struct logger_log *current_log, *next_log;
+
+	list_for_each_entry_safe(current_log, next_log, &log_list, logs) {
+		/* we have to delete all the entry inside log_list */
+		misc_deregister(&current_log->misc);
+		vfree(current_log->buffer);
+		kfree(current_log->misc.name);
+		list_del(&current_log->logs);
+		kfree(current_log);
+	}
+}
+
+
 device_initcall(logger_init);
+module_exit(logger_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Robert Love, <rlove@google.com>");
+MODULE_DESCRIPTION("Android Logger");
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index b91e4bc332a7..3b91b0fd4de3 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -40,7 +40,7 @@
 #include <linux/notifier.h>
 
 static uint32_t lowmem_debug_level = 2;
-static int lowmem_adj[6] = {
+static short lowmem_adj[6] = {
 	0,
 	1,
 	6,
@@ -70,9 +70,9 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
 	int rem = 0;
 	int tasksize;
 	int i;
-	int min_score_adj = OOM_SCORE_ADJ_MAX + 1;
+	short min_score_adj = OOM_SCORE_ADJ_MAX + 1;
 	int selected_tasksize = 0;
-	int selected_oom_score_adj;
+	short selected_oom_score_adj;
 	int array_size = ARRAY_SIZE(lowmem_adj);
 	int other_free = global_page_state(NR_FREE_PAGES);
 	int other_file = global_page_state(NR_FILE_PAGES) -
@@ -90,7 +90,7 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
 		}
 	}
 	if (sc->nr_to_scan > 0)
-		lowmem_print(3, "lowmem_shrink %lu, %x, ofree %d %d, ma %d\n",
+		lowmem_print(3, "lowmem_shrink %lu, %x, ofree %d %d, ma %hd\n",
 				sc->nr_to_scan, sc->gfp_mask, other_free,
 				other_file, min_score_adj);
 	rem = global_page_state(NR_ACTIVE_ANON) +
@@ -107,7 +107,7 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
 	rcu_read_lock();
 	for_each_process(tsk) {
 		struct task_struct *p;
-		int oom_score_adj;
+		short oom_score_adj;
 
 		if (tsk->flags & PF_KTHREAD)
 			continue;
@@ -141,11 +141,11 @@ static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
 		selected = p;
 		selected_tasksize = tasksize;
 		selected_oom_score_adj = oom_score_adj;
-		lowmem_print(2, "select %d (%s), adj %d, size %d, to kill\n",
+		lowmem_print(2, "select %d (%s), adj %hd, size %d, to kill\n",
 			     p->pid, p->comm, oom_score_adj, tasksize);
 	}
 	if (selected) {
-		lowmem_print(1, "send sigkill to %d (%s), adj %d, size %d\n",
+		lowmem_print(1, "send sigkill to %d (%s), adj %hd, size %d\n",
 			     selected->pid, selected->comm,
 			     selected_oom_score_adj, selected_tasksize);
 		lowmem_deathpending_timeout = jiffies + HZ;
@@ -176,7 +176,7 @@ static void __exit lowmem_exit(void)
 }
 
 module_param_named(cost, lowmem_shrinker.seeks, int, S_IRUGO | S_IWUSR);
-module_param_array_named(adj, lowmem_adj, int, &lowmem_adj_size,
+module_param_array_named(adj, lowmem_adj, short, &lowmem_adj_size,
 			 S_IRUGO | S_IWUSR);
 module_param_array_named(minfree, lowmem_minfree, uint, &lowmem_minfree_size,
 			 S_IRUGO | S_IWUSR);