diff options
| -rw-r--r-- | drivers/android/binder.c | 46 |
1 files changed, 3 insertions, 43 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 1e50b034d49a..c8e9d5dfcd86 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -80,8 +80,6 @@ #include "binder_alloc.h" #include "binder_trace.h" -static DEFINE_MUTEX(binder_main_lock); - static HLIST_HEAD(binder_deferred_list); static DEFINE_MUTEX(binder_deferred_lock); @@ -924,19 +922,6 @@ 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; @@ -3557,8 +3542,6 @@ retry: thread->looper |= BINDER_LOOPER_STATE_WAITING; - binder_unlock(__func__); - trace_binder_wait_for_work(wait_for_proc_work, !!thread->transaction_stack, !binder_worklist_empty(proc, &thread->todo)); @@ -3584,8 +3567,6 @@ retry: ret = wait_event_freezable(thread->wait, binder_has_thread_work(thread)); } - binder_lock(__func__); - binder_inner_proc_lock(proc); if (wait_for_proc_work) proc->ready_threads--; @@ -4101,8 +4082,6 @@ static unsigned int binder_poll(struct file *filp, struct binder_thread *thread = NULL; int wait_for_proc_work; - binder_lock(__func__); - thread = binder_get_thread(proc); binder_inner_proc_lock(thread->proc); @@ -4110,8 +4089,6 @@ static unsigned int binder_poll(struct file *filp, binder_worklist_empty_ilocked(&thread->todo); binder_inner_proc_unlock(thread->proc); - binder_unlock(__func__); - if (wait_for_proc_work) { if (binder_has_proc_work(proc, thread)) return POLLIN; @@ -4256,7 +4233,6 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) if (ret) goto err_unlocked; - binder_lock(__func__); thread = binder_get_thread(proc); if (thread == NULL) { ret = -ENOMEM; @@ -4315,7 +4291,6 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) err: if (thread) thread->looper_need_return = false; - binder_unlock(__func__); wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2); if (ret && ret != -ERESTARTSYS) pr_info("%d:%d ioctl %x %lx returned %d\n", proc->pid, current->pid, cmd, arg, ret); @@ -4421,15 +4396,11 @@ static int binder_open(struct inode *nodp, struct file *filp) proc->context = &binder_dev->context; binder_alloc_init(&proc->alloc); - binder_lock(__func__); - binder_stats_created(BINDER_STAT_PROC); proc->pid = current->group_leader->pid; INIT_LIST_HEAD(&proc->delivered_death); filp->private_data = proc; - binder_unlock(__func__); - mutex_lock(&binder_procs_lock); hlist_add_head(&proc->proc_node, &binder_procs); mutex_unlock(&binder_procs_lock); @@ -4655,7 +4626,6 @@ static void binder_deferred_func(struct work_struct *work) int defer; do { - binder_lock(__func__); mutex_lock(&binder_deferred_lock); if (!hlist_empty(&binder_deferred_list)) { proc = hlist_entry(binder_deferred_list.first, @@ -4682,7 +4652,6 @@ static void binder_deferred_func(struct work_struct *work) if (defer & BINDER_DEFERRED_RELEASE) binder_deferred_release(proc); /* frees proc */ - binder_unlock(__func__); if (files) put_files_struct(files); } while (proc); @@ -5097,8 +5066,6 @@ static int binder_state_show(struct seq_file *m, void *unused) struct binder_node *node; struct binder_node *last_node = NULL; - binder_lock(__func__); - seq_puts(m, "binder state:\n"); spin_lock(&binder_dead_nodes_lock); @@ -5128,7 +5095,7 @@ static int binder_state_show(struct seq_file *m, void *unused) hlist_for_each_entry(proc, &binder_procs, proc_node) print_binder_proc(m, proc, 1); mutex_unlock(&binder_procs_lock); - binder_unlock(__func__); + return 0; } @@ -5136,8 +5103,6 @@ static int binder_stats_show(struct seq_file *m, void *unused) { struct binder_proc *proc; - binder_lock(__func__); - seq_puts(m, "binder stats:\n"); print_binder_stats(m, "", &binder_stats); @@ -5146,7 +5111,7 @@ static int binder_stats_show(struct seq_file *m, void *unused) hlist_for_each_entry(proc, &binder_procs, proc_node) print_binder_proc_stats(m, proc); mutex_unlock(&binder_procs_lock); - binder_unlock(__func__); + return 0; } @@ -5154,14 +5119,12 @@ static int binder_transactions_show(struct seq_file *m, void *unused) { struct binder_proc *proc; - binder_lock(__func__); - seq_puts(m, "binder transactions:\n"); mutex_lock(&binder_procs_lock); hlist_for_each_entry(proc, &binder_procs, proc_node) print_binder_proc(m, proc, 0); mutex_unlock(&binder_procs_lock); - binder_unlock(__func__); + return 0; } @@ -5170,8 +5133,6 @@ static int binder_proc_show(struct seq_file *m, void *unused) struct binder_proc *itr; int pid = (unsigned long)m->private; - binder_lock(__func__); - mutex_lock(&binder_procs_lock); hlist_for_each_entry(itr, &binder_procs, proc_node) { if (itr->pid == pid) { @@ -5181,7 +5142,6 @@ static int binder_proc_show(struct seq_file *m, void *unused) } mutex_unlock(&binder_procs_lock); - binder_unlock(__func__); return 0; } |