diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-19 17:48:32 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-19 17:48:32 -0700 |
commit | fb20871a54961b82d35303b43452928186c1361d (patch) | |
tree | 1beeb39e45eda1c8b5893090904b583fceeb07ef /drivers/staging/android/binder.c | |
parent | bee89ab228e6f51c4ddd3481b9bd491859a8ee7b (diff) | |
parent | c7a5d70796379e3d51d0c652fbe1634b81d3bbd5 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (342 commits)
Staging: comedi: fix build errors
Staging: udlfb: update to version 0.2.3
Staging: udlfb: fix some sparse warnings.
Staging: udlfb: clean up checkpatch warnings in udlfb.c
Staging: udlfb: clean up checkpatch warnings in udlfb.h
Staging: udlfb: add udlfb driver to build
Staging: add udlfb driver
Staging: pata_rdc: remove pointless comments
Staging: pata_rdc: remove DRIVER macros
Staging: pata_rdc: remove dbgprintf macro
Staging: pata_rdc: remove broken flag
Staging: pata_rdc: fix build warnings
Staging: pata_rdc: use PCI_DEVICE
Staging: pata_rdc: remove function prototypes
Staging: pata_rdc: coding style fixes
Staging: pata_rdc: convert code to work in 2.6.29
Staging: pata_rdc: add driver to the build system
Staging: add pata_rdc driver
Staging: remove obsolete serqt_usb driver
Staging: serqt_usb2 add the driver to the build
...
Diffstat (limited to 'drivers/staging/android/binder.c')
-rw-r--r-- | drivers/staging/android/binder.c | 436 |
1 files changed, 274 insertions, 162 deletions
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c index 299d29d1dad..17d89a8124a 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; } |