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path: root/drivers/staging/android/binder.c
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Diffstat (limited to 'drivers/staging/android/binder.c')
-rw-r--r--drivers/staging/android/binder.c436
1 files changed, 274 insertions, 162 deletions
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 299d29d1dadb..17d89a8124ad 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -44,8 +44,8 @@ static struct hlist_head binder_dead_nodes;
static HLIST_HEAD(binder_deferred_list);
static DEFINE_MUTEX(binder_deferred_lock);
-static int binder_read_proc_proc(
- char *page, char **start, off_t off, int count, int *eof, void *data);
+static int binder_read_proc_proc(char *page, char **start, off_t off,
+ int count, int *eof, void *data);
/* This is only defined in include/asm-arm/sizes.h */
#ifndef SZ_1K
@@ -81,12 +81,15 @@ enum {
static uint32_t binder_debug_mask = BINDER_DEBUG_USER_ERROR |
BINDER_DEBUG_FAILED_TRANSACTION | BINDER_DEBUG_DEAD_TRANSACTION;
module_param_named(debug_mask, binder_debug_mask, uint, S_IWUSR | S_IRUGO);
+
static int binder_debug_no_lock;
module_param_named(proc_no_lock, binder_debug_no_lock, bool, S_IWUSR | S_IRUGO);
+
static DECLARE_WAIT_QUEUE_HEAD(binder_user_error_wait);
static int binder_stop_on_user_error;
-static int binder_set_stop_on_user_error(
- const char *val, struct kernel_param *kp)
+
+static int binder_set_stop_on_user_error(const char *val,
+ struct kernel_param *kp)
{
int ret;
ret = param_set_int(val, kp);
@@ -185,13 +188,13 @@ struct binder_node {
int local_strong_refs;
void __user *ptr;
void __user *cookie;
- unsigned has_strong_ref : 1;
- unsigned pending_strong_ref : 1;
- unsigned has_weak_ref : 1;
- unsigned pending_weak_ref : 1;
- unsigned has_async_transaction : 1;
- unsigned accept_fds : 1;
- int min_priority : 8;
+ unsigned has_strong_ref:1;
+ unsigned pending_strong_ref:1;
+ unsigned has_weak_ref:1;
+ unsigned pending_weak_ref:1;
+ unsigned has_async_transaction:1;
+ unsigned accept_fds:1;
+ unsigned min_priority:8;
struct list_head async_todo;
};
@@ -221,10 +224,10 @@ struct binder_buffer {
struct list_head entry; /* free and allocated entries by addesss */
struct rb_node rb_node; /* free entry by size or allocated entry */
/* by address */
- unsigned free : 1;
- unsigned allow_user_free : 1;
- unsigned async_transaction : 1;
- unsigned debug_id : 29;
+ unsigned free:1;
+ unsigned allow_user_free:1;
+ unsigned async_transaction:1;
+ unsigned debug_id:29;
struct binder_transaction *transaction;
@@ -306,8 +309,8 @@ struct binder_transaction {
struct binder_proc *to_proc;
struct binder_thread *to_thread;
struct binder_transaction *to_parent;
- unsigned need_reply : 1;
- /*unsigned is_dead : 1;*/ /* not used at the moment */
+ unsigned need_reply:1;
+ /* unsigned is_dead:1; */ /* not used at the moment */
struct binder_buffer *buffer;
unsigned int code;
@@ -474,8 +477,8 @@ static void binder_set_nice(long nice)
binder_user_error("binder: %d RLIMIT_NICE not set\n", current->pid);
}
-static size_t binder_buffer_size(
- struct binder_proc *proc, struct binder_buffer *buffer)
+static size_t binder_buffer_size(struct binder_proc *proc,
+ struct binder_buffer *buffer)
{
if (list_is_last(&buffer->entry, &proc->buffers))
return proc->buffer + proc->buffer_size - (void *)buffer->data;
@@ -484,8 +487,8 @@ static size_t binder_buffer_size(
struct binder_buffer, entry) - (size_t)buffer->data;
}
-static void binder_insert_free_buffer(
- struct binder_proc *proc, struct binder_buffer *new_buffer)
+static void binder_insert_free_buffer(struct binder_proc *proc,
+ struct binder_buffer *new_buffer)
{
struct rb_node **p = &proc->free_buffers.rb_node;
struct rb_node *parent = NULL;
@@ -517,8 +520,8 @@ static void binder_insert_free_buffer(
rb_insert_color(&new_buffer->rb_node, &proc->free_buffers);
}
-static void binder_insert_allocated_buffer(
- struct binder_proc *proc, struct binder_buffer *new_buffer)
+static void binder_insert_allocated_buffer(struct binder_proc *proc,
+ struct binder_buffer *new_buffer)
{
struct rb_node **p = &proc->allocated_buffers.rb_node;
struct rb_node *parent = NULL;
@@ -542,8 +545,8 @@ static void binder_insert_allocated_buffer(
rb_insert_color(&new_buffer->rb_node, &proc->allocated_buffers);
}
-static struct binder_buffer *binder_buffer_lookup(
- struct binder_proc *proc, void __user *user_ptr)
+static struct binder_buffer *binder_buffer_lookup(struct binder_proc *proc,
+ void __user *user_ptr)
{
struct rb_node *n = proc->allocated_buffers.rb_node;
struct binder_buffer *buffer;
@@ -567,7 +570,8 @@ static struct binder_buffer *binder_buffer_lookup(
}
static int binder_update_page_range(struct binder_proc *proc, int allocate,
- void *start, void *end, struct vm_area_struct *vma)
+ void *start, void *end,
+ struct vm_area_struct *vma)
{
void *page_addr;
unsigned long user_page_addr;
@@ -664,7 +668,8 @@ err_no_vma:
}
static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
- size_t data_size, size_t offsets_size, int is_async)
+ size_t data_size,
+ size_t offsets_size, int is_async)
{
struct rb_node *n = proc->free_buffers.rb_node;
struct binder_buffer *buffer;
@@ -692,8 +697,9 @@ static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
if (is_async &&
proc->free_async_space < size + sizeof(struct binder_buffer)) {
if (binder_debug_mask & BINDER_DEBUG_BUFFER_ALLOC)
- printk(KERN_ERR "binder: %d: binder_alloc_buf size %zd f"
- "ailed, no async space left\n", proc->pid, size);
+ printk(KERN_ERR
+ "binder: %d: binder_alloc_buf size %zd failed, "
+ "no async space left\n", proc->pid, size);
return NULL;
}
@@ -777,8 +783,8 @@ static void *buffer_end_page(struct binder_buffer *buffer)
return (void *)(((uintptr_t)(buffer + 1) - 1) & PAGE_MASK);
}
-static void binder_delete_free_buffer(
- struct binder_proc *proc, struct binder_buffer *buffer)
+static void binder_delete_free_buffer(struct binder_proc *proc,
+ struct binder_buffer *buffer)
{
struct binder_buffer *prev, *next = NULL;
int free_page_end = 1;
@@ -824,8 +830,8 @@ static void binder_delete_free_buffer(
}
}
-static void binder_free_buf(
- struct binder_proc *proc, struct binder_buffer *buffer)
+static void binder_free_buf(struct binder_proc *proc,
+ struct binder_buffer *buffer)
{
size_t size, buffer_size;
@@ -877,8 +883,8 @@ static void binder_free_buf(
binder_insert_free_buffer(proc, buffer);
}
-static struct binder_node *
-binder_get_node(struct binder_proc *proc, void __user *ptr)
+static struct binder_node *binder_get_node(struct binder_proc *proc,
+ void __user *ptr)
{
struct rb_node *n = proc->nodes.rb_node;
struct binder_node *node;
@@ -896,8 +902,9 @@ binder_get_node(struct binder_proc *proc, void __user *ptr)
return NULL;
}
-static struct binder_node *
-binder_new_node(struct binder_proc *proc, void __user *ptr, void __user *cookie)
+static struct binder_node *binder_new_node(struct binder_proc *proc,
+ void __user *ptr,
+ void __user *cookie)
{
struct rb_node **p = &proc->nodes.rb_node;
struct rb_node *parent = NULL;
@@ -935,9 +942,8 @@ binder_new_node(struct binder_proc *proc, void __user *ptr, void __user *cookie)
return node;
}
-static int
-binder_inc_node(struct binder_node *node, int strong, int internal,
- struct list_head *target_list)
+static int binder_inc_node(struct binder_node *node, int strong, int internal,
+ struct list_head *target_list)
{
if (strong) {
if (internal) {
@@ -971,8 +977,7 @@ binder_inc_node(struct binder_node *node, int strong, int internal,
return 0;
}
-static int
-binder_dec_node(struct binder_node *node, int strong, int internal)
+static int binder_dec_node(struct binder_node *node, int strong, int internal)
{
if (strong) {
if (internal)
@@ -1014,8 +1019,8 @@ binder_dec_node(struct binder_node *node, int strong, int internal)
}
-static struct binder_ref *
-binder_get_ref(struct binder_proc *proc, uint32_t desc)
+static struct binder_ref *binder_get_ref(struct binder_proc *proc,
+ uint32_t desc)
{
struct rb_node *n = proc->refs_by_desc.rb_node;
struct binder_ref *ref;
@@ -1033,8 +1038,8 @@ binder_get_ref(struct binder_proc *proc, uint32_t desc)
return NULL;
}
-static struct binder_ref *
-binder_get_ref_for_node(struct binder_proc *proc, struct binder_node *node)
+static struct binder_ref *binder_get_ref_for_node(struct binder_proc *proc,
+ struct binder_node *node)
{
struct rb_node *n;
struct rb_node **p = &proc->refs_by_node.rb_node;
@@ -1099,8 +1104,7 @@ binder_get_ref_for_node(struct binder_proc *proc, struct binder_node *node)
return new_ref;
}
-static void
-binder_delete_ref(struct binder_ref *ref)
+static void binder_delete_ref(struct binder_ref *ref)
{
if (binder_debug_mask & BINDER_DEBUG_INTERNAL_REFS)
printk(KERN_INFO "binder: %d delete ref %d desc %d for "
@@ -1125,9 +1129,8 @@ binder_delete_ref(struct binder_ref *ref)
binder_stats.obj_deleted[BINDER_STAT_REF]++;
}
-static int
-binder_inc_ref(
- struct binder_ref *ref, int strong, struct list_head *target_list)
+static int binder_inc_ref(struct binder_ref *ref, int strong,
+ struct list_head *target_list)
{
int ret;
if (strong) {
@@ -1149,8 +1152,7 @@ binder_inc_ref(
}
-static int
-binder_dec_ref(struct binder_ref *ref, int strong)
+static int binder_dec_ref(struct binder_ref *ref, int strong)
{
if (strong) {
if (ref->strong == 0) {
@@ -1182,9 +1184,8 @@ binder_dec_ref(struct binder_ref *ref, int strong)
return 0;
}
-static void
-binder_pop_transaction(
- struct binder_thread *target_thread, struct binder_transaction *t)
+static void binder_pop_transaction(struct binder_thread *target_thread,
+ struct binder_transaction *t)
{
if (target_thread) {
BUG_ON(target_thread->transaction_stack != t);
@@ -1200,8 +1201,8 @@ binder_pop_transaction(
binder_stats.obj_deleted[BINDER_STAT_TRANSACTION]++;
}
-static void
-binder_send_failed_reply(struct binder_transaction *t, uint32_t error_code)
+static void binder_send_failed_reply(struct binder_transaction *t,
+ uint32_t error_code)
{
struct binder_thread *target_thread;
BUG_ON(t->flags & TF_ONE_WAY);
@@ -1253,13 +1254,13 @@ binder_send_failed_reply(struct binder_transaction *t, uint32_t error_code)
}
}
-static void
-binder_transaction_buffer_release(struct binder_proc *proc,
- struct binder_buffer *buffer, size_t *failed_at);
+static void binder_transaction_buffer_release(struct binder_proc *proc,
+ struct binder_buffer *buffer,
+ size_t *failed_at);
-static void
-binder_transaction(struct binder_proc *proc, struct binder_thread *thread,
- struct binder_transaction_data *tr, int reply)
+static void binder_transaction(struct binder_proc *proc,
+ struct binder_thread *thread,
+ struct binder_transaction_data *tr, int reply)
{
struct binder_transaction *t;
struct binder_work *tcomplete;
@@ -1661,8 +1662,9 @@ err_no_context_mgr_node:
thread->return_error = return_error;
}
-static void
-binder_transaction_buffer_release(struct binder_proc *proc, struct binder_buffer *buffer, size_t *failed_at)
+static void binder_transaction_buffer_release(struct binder_proc *proc,
+ struct binder_buffer *buffer,
+ size_t *failed_at)
{
size_t *offp, *off_end;
int debug_id = buffer->debug_id;
@@ -1730,9 +1732,8 @@ binder_transaction_buffer_release(struct binder_proc *proc, struct binder_buffer
}
}
-int
-binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
- void __user *buffer, int size, signed long *consumed)
+int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
+ void __user *buffer, int size, signed long *consumed)
{
uint32_t cmd;
void __user *ptr = buffer + *consumed;
@@ -2104,7 +2105,8 @@ binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
} break;
default:
- printk(KERN_ERR "binder: %d:%d unknown command %d\n", proc->pid, thread->pid, cmd);
+ printk(KERN_ERR "binder: %d:%d unknown command %d\n",
+ proc->pid, thread->pid, cmd);
return -EINVAL;
}
*consumed = ptr - buffer;
@@ -2112,8 +2114,8 @@ binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
return 0;
}
-void
-binder_stat_br(struct binder_proc *proc, struct binder_thread *thread, uint32_t cmd)
+void binder_stat_br(struct binder_proc *proc, struct binder_thread *thread,
+ uint32_t cmd)
{
if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.br)) {
binder_stats.br[_IOC_NR(cmd)]++;
@@ -2122,22 +2124,23 @@ binder_stat_br(struct binder_proc *proc, struct binder_thread *thread, uint32_t
}
}
-static int
-binder_has_proc_work(struct binder_proc *proc, struct binder_thread *thread)
+static int binder_has_proc_work(struct binder_proc *proc,
+ struct binder_thread *thread)
{
- return !list_empty(&proc->todo) || (thread->looper & BINDER_LOOPER_STATE_NEED_RETURN);
+ return !list_empty(&proc->todo) ||
+ (thread->looper & BINDER_LOOPER_STATE_NEED_RETURN);
}
-static int
-binder_has_thread_work(struct binder_thread *thread)
+static int binder_has_thread_work(struct binder_thread *thread)
{
return !list_empty(&thread->todo) || thread->return_error != BR_OK ||
(thread->looper & BINDER_LOOPER_STATE_NEED_RETURN);
}
-static int
-binder_thread_read(struct binder_proc *proc, struct binder_thread *thread,
- void __user *buffer, int size, signed long *consumed, int non_block)
+static int binder_thread_read(struct binder_proc *proc,
+ struct binder_thread *thread,
+ void __user *buffer, int size,
+ signed long *consumed, int non_block)
{
void __user *ptr = buffer + *consumed;
void __user *end = buffer + size;
@@ -2152,7 +2155,8 @@ binder_thread_read(struct binder_proc *proc, struct binder_thread *thread,
}
retry:
- wait_for_proc_work = thread->transaction_stack == NULL && list_empty(&thread->todo);
+ wait_for_proc_work = thread->transaction_stack == NULL &&
+ list_empty(&thread->todo);
if (thread->return_error != BR_OK && ptr < end) {
if (thread->return_error2 != BR_OK) {
@@ -2182,7 +2186,8 @@ retry:
"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);
+ wait_event_interruptible(binder_user_error_wait,
+ binder_stop_on_user_error < 2);
}
binder_set_nice(proc->default_priority);
if (non_block) {
@@ -2304,8 +2309,10 @@ retry:
case BINDER_WORK_DEAD_BINDER:
case BINDER_WORK_DEAD_BINDER_AND_CLEAR:
case BINDER_WORK_CLEAR_DEATH_NOTIFICATION: {
- struct binder_ref_death *death = container_of(w, struct binder_ref_death, work);
+ struct binder_ref_death *death;
uint32_t cmd;
+
+ death = container_of(w, struct binder_ref_death, work);
if (w->type == BINDER_WORK_CLEAR_DEATH_NOTIFICATION)
cmd = BR_CLEAR_DEATH_NOTIFICATION_DONE;
else
@@ -2362,15 +2369,19 @@ retry:
if (t->from) {
struct task_struct *sender = t->from->proc->tsk;
- tr.sender_pid = task_tgid_nr_ns(sender, current->nsproxy->pid_ns);
+ tr.sender_pid = task_tgid_nr_ns(sender,
+ current->nsproxy->pid_ns);
} else {
tr.sender_pid = 0;
}
tr.data_size = t->buffer->data_size;
tr.offsets_size = t->buffer->offsets_size;
- tr.data.ptr.buffer = (void *)t->buffer->data + proc->user_buffer_offset;
- tr.data.ptr.offsets = tr.data.ptr.buffer + ALIGN(t->buffer->data_size, sizeof(void *));
+ tr.data.ptr.buffer = (void *)t->buffer->data +
+ proc->user_buffer_offset;
+ tr.data.ptr.offsets = tr.data.ptr.buffer +
+ ALIGN(t->buffer->data_size,
+ sizeof(void *));
if (put_user(cmd, (uint32_t __user *)ptr))
return -EFAULT;
@@ -2384,7 +2395,8 @@ retry:
printk(KERN_INFO "binder: %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",
+ (cmd == BR_TRANSACTION) ? "BR_TRANSACTION" :
+ "BR_REPLY",
t->debug_id, t->from ? t->from->proc->pid : 0,
t->from ? t->from->pid : 0, cmd,
t->buffer->data_size, t->buffer->offsets_size,
@@ -2430,7 +2442,9 @@ static void binder_release_work(struct list_head *list)
list_del_init(&w->entry);
switch (w->type) {
case BINDER_WORK_TRANSACTION: {
- struct binder_transaction *t = container_of(w, struct binder_transaction, work);
+ struct binder_transaction *t;
+
+ t = container_of(w, struct binder_transaction, work);
if (t->buffer->target_node && !(t->flags & TF_ONE_WAY))
binder_send_failed_reply(t, BR_DEAD_REPLY);
} break;
@@ -2480,7 +2494,8 @@ static struct binder_thread *binder_get_thread(struct binder_proc *proc)
return thread;
}
-static int binder_free_thread(struct binder_proc *proc, struct binder_thread *thread)
+static int binder_free_thread(struct binder_proc *proc,
+ struct binder_thread *thread)
{
struct binder_transaction *t;
struct binder_transaction *send_reply = NULL;
@@ -2493,8 +2508,10 @@ static int binder_free_thread(struct binder_proc *proc, struct binder_thread *th
while (t) {
active_transactions++;
if (binder_debug_mask & BINDER_DEBUG_DEAD_TRANSACTION)
- printk(KERN_INFO "binder: release %d:%d transaction %d %s, still active\n",
- proc->pid, thread->pid, t->debug_id, (t->to_thread == thread) ? "in" : "out");
+ printk(KERN_INFO "binder: release %d:%d transaction %d "
+ "%s, still active\n", proc->pid, thread->pid,
+ t->debug_id,
+ (t->to_thread == thread) ? "in" : "out");
if (t->to_thread == thread) {
t->to_proc = NULL;
t->to_thread = NULL;
@@ -2517,7 +2534,8 @@ static int binder_free_thread(struct binder_proc *proc, struct binder_thread *th
return active_transactions;
}
-static unsigned int binder_poll(struct file *filp, struct poll_table_struct *wait)
+static unsigned int binder_poll(struct file *filp,
+ struct poll_table_struct *wait)
{
struct binder_proc *proc = filp->private_data;
struct binder_thread *thread = NULL;
@@ -2778,7 +2796,8 @@ static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
proc->files = get_files_struct(current);
proc->vma = vma;
- /*printk(KERN_INFO "binder_mmap: %d %lx-%lx maps %p\n", proc->pid, vma->vm_start, vma->vm_end, proc->buffer);*/
+ /*printk(KERN_INFO "binder_mmap: %d %lx-%lx maps %p\n",
+ proc->pid, vma->vm_start, vma->vm_end, proc->buffer);*/
return 0;
err_alloc_small_buf_failed:
@@ -2790,7 +2809,8 @@ err_alloc_pages_failed:
err_get_vm_area_failed:
err_already_mapped:
err_bad_arg:
- printk(KERN_ERR "binder_mmap: %d %lx-%lx %s failed %d\n", proc->pid, vma->vm_start, vma->vm_end, failure_string, ret);
+ printk(KERN_ERR "binder_mmap: %d %lx-%lx %s failed %d\n",
+ proc->pid, vma->vm_start, vma->vm_end, failure_string, ret);
return ret;
}
@@ -2799,7 +2819,8 @@ static int binder_open(struct inode *nodp, struct file *filp)
struct binder_proc *proc;
if (binder_debug_mask & BINDER_DEBUG_OPEN_CLOSE)
- printk(KERN_INFO "binder_open: %d:%d\n", current->group_leader->pid, current->pid);
+ printk(KERN_INFO "binder_open: %d:%d\n",
+ current->group_leader->pid, current->pid);
proc = kzalloc(sizeof(*proc), GFP_KERNEL);
if (proc == NULL)
@@ -2821,7 +2842,9 @@ static int binder_open(struct inode *nodp, struct file *filp)
char strbuf[11];
snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
remove_proc_entry(strbuf, binder_proc_dir_entry_proc);
- create_proc_read_entry(strbuf, S_IRUGO, binder_proc_dir_entry_proc, binder_read_proc_proc, proc);
+ create_proc_read_entry(strbuf, S_IRUGO,
+ binder_proc_dir_entry_proc,
+ binder_read_proc_proc, proc);
}
return 0;
@@ -2925,12 +2948,15 @@ static void binder_deferred_release(struct binder_proc *proc)
}
}
if (binder_debug_mask & BINDER_DEBUG_DEAD_BINDER)
- printk(KERN_INFO "binder: node %d now dead, refs %d, death %d\n", node->debug_id, incoming_refs, death);
+ printk(KERN_INFO "binder: node %d now dead, "
+ "refs %d, death %d\n", node->debug_id,
+ incoming_refs, death);
}
}
outgoing_refs = 0;
while ((n = rb_first(&proc->refs_by_desc))) {
- struct binder_ref *ref = rb_entry(n, struct binder_ref, rb_node_desc);
+ struct binder_ref *ref = rb_entry(n, struct binder_ref,
+ rb_node_desc);
outgoing_refs++;
binder_delete_ref(ref);
}
@@ -2938,12 +2964,15 @@ static void binder_deferred_release(struct binder_proc *proc)
buffers = 0;
while ((n = rb_first(&proc->allocated_buffers))) {
- struct binder_buffer *buffer = rb_entry(n, struct binder_buffer, rb_node);
+ struct binder_buffer *buffer = rb_entry(n, struct binder_buffer,
+ rb_node);
t = buffer->transaction;
if (t) {
t->buffer = NULL;
buffer->transaction = NULL;
- printk(KERN_ERR "binder: release proc %d, transaction %d, not freed\n", proc->pid, t->debug_id);
+ printk(KERN_ERR "binder: release proc %d, "
+ "transaction %d, not freed\n",
+ proc->pid, t->debug_id);
/*BUG();*/
}
binder_free_buf(proc, buffer);
@@ -2957,8 +2986,13 @@ static void binder_deferred_release(struct binder_proc *proc)
int i;
for (i = 0; i < proc->buffer_size / PAGE_SIZE; i++) {
if (proc->pages[i]) {
- if (binder_debug_mask & BINDER_DEBUG_BUFFER_ALLOC)
- printk(KERN_INFO "binder_release: %d: page %d at %p not freed\n", proc->pid, i, proc->buffer + i * PAGE_SIZE);
+ if (binder_debug_mask &
+ BINDER_DEBUG_BUFFER_ALLOC)
+ printk(KERN_INFO
+ "binder_release: %d: "
+ "page %d at %p not freed\n",
+ proc->pid, i,
+ proc->buffer + i * PAGE_SIZE);
__free_page(proc->pages[i]);
page_count++;
}
@@ -2970,8 +3004,12 @@ static void binder_deferred_release(struct binder_proc *proc)
put_task_struct(proc->tsk);
if (binder_debug_mask & BINDER_DEBUG_OPEN_CLOSE)
- printk(KERN_INFO "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);
+ printk(KERN_INFO
+ "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);
kfree(proc);
}
@@ -2998,9 +3036,11 @@ static void binder_deferred_func(struct work_struct *work)
mutex_unlock(&binder_deferred_lock);
files = NULL;
- if (defer & BINDER_DEFERRED_PUT_FILES)
- if ((files = proc->files))
+ if (defer & BINDER_DEFERRED_PUT_FILES) {
+ files = proc->files;
+ if (files)
proc->files = NULL;
+ }
if (defer & BINDER_DEFERRED_FLUSH)
binder_deferred_flush(proc);
@@ -3027,10 +3067,14 @@ static void binder_defer_work(struct binder_proc *proc, int defer)
mutex_unlock(&binder_deferred_lock);
}
-static char *print_binder_transaction(char *buf, char *end, const char *prefix, struct binder_transaction *t)
+static char *print_binder_transaction(char *buf, char *end, const char *prefix,
+ struct binder_transaction *t)
{
- buf += snprintf(buf, end - buf, "%s %d: %p from %d:%d to %d:%d code %x flags %x pri %ld r%d",
- prefix, t->debug_id, t, t->from ? t->from->proc->pid : 0,
+ buf += snprintf(buf, end - buf,
+ "%s %d: %p from %d:%d to %d:%d code %x "
+ "flags %x pri %ld r%d",
+ prefix, t->debug_id, t,
+ t->from ? t->from->proc->pid : 0,
t->from ? t->from->pid : 0,
t->to_proc ? t->to_proc->pid : 0,
t->to_thread ? t->to_thread->pid : 0,
@@ -3053,7 +3097,8 @@ static char *print_binder_transaction(char *buf, char *end, const char *prefix,
return buf;
}
-static char *print_binder_buffer(char *buf, char *end, const char *prefix, struct binder_buffer *buffer)
+static char *print_binder_buffer(char *buf, char *end, const char *prefix,
+ struct binder_buffer *buffer)
{
buf += snprintf(buf, end - buf, "%s %d: %p size %zd:%zd %s\n",
prefix, buffer->debug_id, buffer->data,
@@ -3063,7 +3108,8 @@ static char *print_binder_buffer(char *buf, char *end, const char *prefix, struc
}
static char *print_binder_work(char *buf, char *end, const char *prefix,
- const char *transaction_prefix, struct binder_work *w)
+ const char *transaction_prefix,
+ struct binder_work *w)
{
struct binder_node *node;
struct binder_transaction *t;
@@ -3080,7 +3126,8 @@ static char *print_binder_work(char *buf, char *end, const char *prefix,
case BINDER_WORK_NODE:
node = container_of(w, struct binder_node, work);
buf += snprintf(buf, end - buf, "%snode work %d: u%p c%p\n",
- prefix, node->debug_id, node->ptr, node->cookie);
+ prefix, node->debug_id, node->ptr,
+ node->cookie);
break;
case BINDER_WORK_DEAD_BINDER:
buf += snprintf(buf, end - buf, "%shas dead binder\n", prefix);
@@ -3101,27 +3148,33 @@ static char *print_binder_work(char *buf, char *end, const char *prefix,
return buf;
}
-static char *print_binder_thread(char *buf, char *end, struct binder_thread *thread, int print_always)
+static char *print_binder_thread(char *buf, char *end,
+ struct binder_thread *thread,
+ int print_always)
{
struct binder_transaction *t;
struct binder_work *w;
char *start_buf = buf;
char *header_buf;
- buf += snprintf(buf, end - buf, " thread %d: l %02x\n", thread->pid, thread->looper);
+ buf += snprintf(buf, end - buf, " thread %d: l %02x\n",
+ thread->pid, thread->looper);
header_buf = buf;
t = thread->transaction_stack;
while (t) {
if (buf >= end)
break;
if (t->from == thread) {
- buf = print_binder_transaction(buf, end, " outgoing transaction", t);
+ buf = print_binder_transaction(buf, end,
+ " outgoing transaction", t);
t = t->from_parent;
} else if (t->to_thread == thread) {
- buf = print_binder_transaction(buf, end, " incoming transaction", t);
+ buf = print_binder_transaction(buf, end,
+ " incoming transaction", t);
t = t->to_parent;
} else {
- buf = print_binder_transaction(buf, end, " bad transaction", t);
+ buf = print_binder_transaction(buf, end,
+ " bad transaction", t);
t = NULL;
}
}
@@ -3142,11 +3195,14 @@ static char *print_binder_node(char *buf, char *end, struct binder_node *node)
struct hlist_node *pos;
struct binder_work *w;
int count;
+
count = 0;
hlist_for_each_entry(ref, pos, &node->refs, node_entry)
count++;
- buf += snprintf(buf, end - buf, " node %d: u%p c%p hs %d hw %d ls %d lw %d is %d iw %d",
+ buf += snprintf(buf, end - buf,
+ " node %d: u%p c%p hs %d hw %d ls %d lw %d "
+ "is %d iw %d",
node->debug_id, node->ptr, node->cookie,
node->has_strong_ref, node->has_weak_ref,
node->local_strong_refs, node->local_weak_refs,
@@ -3175,13 +3231,16 @@ static char *print_binder_node(char *buf, char *end, struct binder_node *node)
static char *print_binder_ref(char *buf, char *end, struct binder_ref *ref)
{
- buf += snprintf(buf, end - buf, " ref %d: desc %d %snode %d s %d w %d d %p\n",
- ref->debug_id, ref->desc, ref->node->proc ? "" : "dead ",
- ref->node->debug_id, ref->strong, ref->weak, ref->death);
+ buf += snprintf(buf, end - buf,
+ " ref %d: desc %d %snode %d s %d w %d d %p\n",
+ ref->debug_id, ref->desc,
+ ref->node->proc ? "" : "dead ", ref->node->debug_id,
+ ref->strong, ref->weak, ref->death);
return buf;
}
-static char *print_binder_proc(char *buf, char *end, struct binder_proc *proc, int print_all)
+static char *print_binder_proc(char *buf, char *end,
+ struct binder_proc *proc, int print_all)
{
struct binder_work *w;
struct rb_node *n;
@@ -3191,19 +3250,34 @@ static char *print_binder_proc(char *buf, char *end, struct binder_proc *proc, i
buf += snprintf(buf, end - buf, "proc %d\n", proc->pid);
header_buf = buf;
- for (n = rb_first(&proc->threads); n != NULL && buf < end; n = rb_next(n))
- buf = print_binder_thread(buf, end, rb_entry(n, struct binder_thread, rb_node), print_all);
- for (n = rb_first(&proc->nodes); n != NULL && buf < end; n = rb_next(n)) {
- struct binder_node *node = rb_entry(n, struct binder_node, rb_node);
+ for (n = rb_first(&proc->threads);
+ n != NULL && buf < end;
+ n = rb_next(n))
+ buf = print_binder_thread(buf, end,
+ rb_entry(n, struct binder_thread,
+ rb_node), print_all);
+ for (n = rb_first(&proc->nodes);
+ n != NULL && buf < end;
+ n = rb_next(n)) {
+ struct binder_node *node = rb_entry(n, struct binder_node,
+ rb_node);
if (print_all || node->has_async_transaction)
buf = print_binder_node(buf, end, node);
}
if (print_all) {
- for (n = rb_first(&proc->refs_by_desc); n != NULL && buf < end; n = rb_next(n))
- buf = print_binder_ref(buf, end, rb_entry(n, struct binder_ref, rb_node_desc));
- }
- for (n = rb_first(&proc->allocated_buffers); n != NULL && buf < end; n = rb_next(n))
- buf = print_binder_buffer(buf, end, " buffer", rb_entry(n, struct binder_buffer, rb_node));
+ for (n = rb_first(&proc->refs_by_desc);
+ n != NULL && buf < end;
+ n = rb_next(n))
+ buf = print_binder_ref(buf, end,
+ rb_entry(n, struct binder_ref,
+ rb_node_desc));
+ }
+ for (n = rb_first(&proc->allocated_buffers);
+ n != NULL && buf < end;
+ n = rb_next(n))
+ buf = print_binder_buffer(buf, end, " buffer",
+ rb_entry(n, struct binder_buffer,
+ rb_node));
list_for_each_entry(w, &proc->todo, entry) {
if (buf >= end)
break;
@@ -3213,7 +3287,8 @@ static char *print_binder_proc(char *buf, char *end, struct binder_proc *proc, i
list_for_each_entry(w, &proc->delivered_death, entry) {
if (buf >= end)
break;
- buf += snprintf(buf, end - buf, " has delivered dead binder\n");
+ buf += snprintf(buf, end - buf,
+ " has delivered dead binder\n");
break;
}
if (!print_all && buf == header_buf)
@@ -3272,20 +3347,24 @@ static const char *binder_objstat_strings[] = {
"transaction_complete"
};
-static char *print_binder_stats(char *buf, char *end, const char *prefix, struct binder_stats *stats)
+static char *print_binder_stats(char *buf, char *end, const char *prefix,
+ struct binder_stats *stats)
{
int i;
- BUILD_BUG_ON(ARRAY_SIZE(stats->bc) != ARRAY_SIZE(binder_command_strings));
+ BUILD_BUG_ON(ARRAY_SIZE(stats->bc) !=
+ ARRAY_SIZE(binder_command_strings));
for (i = 0; i < ARRAY_SIZE(stats->bc); i++) {
if (stats->bc[i])
buf += snprintf(buf, end - buf, "%s%s: %d\n", prefix,
- binder_command_strings[i], stats->bc[i]);
+ binder_command_strings[i],
+ stats->bc[i]);
if (buf >= end)
return buf;
}
- BUILD_BUG_ON(ARRAY_SIZE(stats->br) != ARRAY_SIZE(binder_return_strings));
+ BUILD_BUG_ON(ARRAY_SIZE(stats->br) !=
+ ARRAY_SIZE(binder_return_strings));
for (i = 0; i < ARRAY_SIZE(stats->br); i++) {
if (stats->br[i])
buf += snprintf(buf, end - buf, "%s%s: %d\n", prefix,
@@ -3294,13 +3373,17 @@ static char *print_binder_stats(char *buf, char *end, const char *prefix, struct
return buf;
}
- BUILD_BUG_ON(ARRAY_SIZE(stats->obj_created) != ARRAY_SIZE(binder_objstat_strings));
- BUILD_BUG_ON(ARRAY_SIZE(stats->obj_created) != ARRAY_SIZE(stats->obj_deleted));
+ BUILD_BUG_ON(ARRAY_SIZE(stats->obj_created) !=
+ ARRAY_SIZE(binder_objstat_strings));
+ BUILD_BUG_ON(ARRAY_SIZE(stats->obj_created) !=
+ ARRAY_SIZE(stats->obj_deleted));
for (i = 0; i < ARRAY_SIZE(stats->obj_created); i++) {
if (stats->obj_created[i] || stats->obj_deleted[i])
- buf += snprintf(buf, end - buf, "%s%s: active %d total %d\n", prefix,
+ buf += snprintf(buf, end - buf,
+ "%s%s: active %d total %d\n", prefix,
binder_objstat_strings[i],
- stats->obj_created[i] - stats->obj_deleted[i],
+ stats->obj_created[i] -
+ stats->obj_deleted[i],
stats->obj_created[i]);
if (buf >= end)
return buf;
@@ -3308,7 +3391,8 @@ static char *print_binder_stats(char *buf, char *end, const char *prefix, struct
return buf;
}
-static char *print_binder_proc_stats(char *buf, char *end, struct binder_proc *proc)
+static char *print_binder_proc_stats(char *buf, char *end,
+ struct binder_proc *proc)
{
struct binder_work *w;
struct rb_node *n;
@@ -3340,12 +3424,14 @@ static char *print_binder_proc_stats(char *buf, char *end, struct binder_proc *p
strong = 0;
weak = 0;
for (n = rb_first(&proc->refs_by_desc); n != NULL; n = rb_next(n)) {
- struct binder_ref *ref = rb_entry(n, struct binder_ref, rb_node_desc);
+ struct binder_ref *ref = rb_entry(n, struct binder_ref,
+ rb_node_desc);
count++;
strong += ref->strong;
weak += ref->weak;
}
- buf += snprintf(buf, end - buf, " refs: %d s %d w %d\n", count, strong, weak);
+ buf += snprintf(buf, end - buf, " refs: %d s %d w %d\n",
+ count, strong, weak);
if (buf >= end)
return buf;
@@ -3376,8 +3462,8 @@ static char *print_binder_proc_stats(char *buf, char *end, struct binder_proc *p
}
-static int binder_read_proc_state(
- char *page, char **start, off_t off, int count, int *eof, void *data)
+static int binder_read_proc_state(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
struct binder_proc *proc;
struct hlist_node *pos;
@@ -3424,8 +3510,8 @@ static int binder_read_proc_state(
return len < count ? len : count;
}
-static int binder_read_proc_stats(
- char *page, char **start, off_t off, int count, int *eof, void *data)
+static int binder_read_proc_stats(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
struct binder_proc *proc;
struct hlist_node *pos;
@@ -3464,8 +3550,8 @@ static int binder_read_proc_stats(
return len < count ? len : count;
}
-static int binder_read_proc_transactions(
- char *page, char **start, off_t off, int count, int *eof, void *data)
+static int binder_read_proc_transactions(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
struct binder_proc *proc;
struct hlist_node *pos;
@@ -3502,8 +3588,8 @@ static int binder_read_proc_transactions(
return len < count ? len : count;
}
-static int binder_read_proc_proc(
- char *page, char **start, off_t off, int count, int *eof, void *data)
+static int binder_read_proc_proc(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
{
struct binder_proc *proc = data;
int len = 0;
@@ -3533,9 +3619,12 @@ static int binder_read_proc_proc(
return len < count ? len : count;
}
-static char *print_binder_transaction_log_entry(char *buf, char *end, struct binder_transaction_log_entry *e)
+static char *print_binder_transaction_log_entry(char *buf, char *end,
+ struct binder_transaction_log_entry *e)
{
- buf += snprintf(buf, end - buf, "%d: %s from %d:%d to %d:%d node %d handle %d size %d:%d\n",
+ buf += snprintf(buf, end - buf,
+ "%d: %s from %d:%d to %d:%d node %d handle %d "
+ "size %d:%d\n",
e->debug_id, (e->call_type == 2) ? "reply" :
((e->call_type == 1) ? "async" : "call "), e->from_proc,
e->from_thread, e->to_proc, e->to_thread, e->to_node,
@@ -3559,13 +3648,15 @@ static int binder_read_proc_transaction_log(
for (i = log->next; i < ARRAY_SIZE(log->entry); i++) {
if (buf >= end)
break;
- buf = print_binder_transaction_log_entry(buf, end, &log->entry[i]);
+ buf = print_binder_transaction_log_entry(buf, end,
+ &log->entry[i]);
}
}
for (i = 0; i < log->next; i++) {
if (buf >= end)
break;
- buf = print_binder_transaction_log_entry(buf, end, &log->entry[i]);
+ buf = print_binder_transaction_log_entry(buf, end,
+ &log->entry[i]);
}
*start = page + off;
@@ -3579,7 +3670,7 @@ static int binder_read_proc_transaction_log(
return len < count ? len : count;
}
-static struct file_operations binder_fops = {
+static const struct file_operations binder_fops = {
.owner = THIS_MODULE,
.poll = binder_poll,
.unlocked_ioctl = binder_ioctl,
@@ -3601,14 +3692,35 @@ static int __init binder_init(void)
binder_proc_dir_entry_root = proc_mkdir("binder", NULL);
if (binder_proc_dir_entry_root)
- binder_proc_dir_entry_proc = proc_mkdir("proc", binder_proc_dir_entry_root);
+ binder_proc_dir_entry_proc = proc_mkdir("proc",
+ binder_proc_dir_entry_root);
ret = misc_register(&binder_miscdev);
if (binder_proc_dir_entry_root) {
- create_proc_read_entry("state", S_IRUGO, binder_proc_dir_entry_root, binder_read_proc_state, NULL);
- create_proc_read_entry("stats", S_IRUGO, binder_proc_dir_entry_root, binder_read_proc_stats, NULL);
- create_proc_read_entry("transactions", S_IRUGO, binder_proc_dir_entry_root, binder_read_proc_transactions, NULL);
- create_proc_read_entry("transaction_log", S_IRUGO, binder_proc_dir_entry_root, binder_read_proc_transaction_log, &binder_transaction_log);
- create_proc_read_entry("failed_transaction_log", S_IRUGO, binder_proc_dir_entry_root, binder_read_proc_transaction_log, &binder_transaction_log_failed);
+ create_proc_read_entry("state",
+ S_IRUGO,
+ binder_proc_dir_entry_root,
+ binder_read_proc_state,
+ NULL);
+ create_proc_read_entry("stats",
+ S_IRUGO,
+ binder_proc_dir_entry_root,
+ binder_read_proc_stats,
+ NULL);
+ create_proc_read_entry("transactions",
+ S_IRUGO,
+ binder_proc_dir_entry_root,
+ binder_read_proc_transactions,
+ NULL);
+ create_proc_read_entry("transaction_log",
+ S_IRUGO,
+ binder_proc_dir_entry_root,
+ binder_read_proc_transaction_log,
+ &binder_transaction_log);
+ create_proc_read_entry("failed_transaction_log",
+ S_IRUGO,
+ binder_proc_dir_entry_root,
+ binder_read_proc_transaction_log,
+ &binder_transaction_log_failed);
}
return ret;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 12:09:24 +0000