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ca971bbfd8
This patch changes the top-level directory layout as a preparatory step for improving the tools for managing 3rd-party source codes. The rationale is described in the issue referenced below. Issue #1082
111 lines
3.1 KiB
Diff
111 lines
3.1 KiB
Diff
--- drivers/staging/android/binder.c
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+++ drivers/staging/android/binder.c
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@@ -34,6 +34,8 @@
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#include <linux/vmalloc.h>
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#include <linux/slab.h>
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+#include <linux/kthread.h>
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+
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#include "binder.h"
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static DEFINE_MUTEX(binder_lock);
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@@ -49,6 +51,8 @@ static struct dentry *binder_debugfs_dir_entry_proc;
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static struct binder_node *binder_context_mgr_node;
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static uid_t binder_context_mgr_uid = -1;
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static int binder_last_id;
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+static struct task_struct *binder_deferred_task;
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+static DECLARE_WAIT_QUEUE_HEAD(binder_deferred_wq);
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static struct workqueue_struct *binder_deferred_workqueue;
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#define BINDER_DEBUG_ENTRY(name) \
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@@ -3075,14 +3079,23 @@ static void binder_deferred_release(struct binder_proc *proc)
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kfree(proc);
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}
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-static void binder_deferred_func(struct work_struct *work)
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+static int binder_deferred_thread(void *ignore)
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{
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struct binder_proc *proc;
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struct files_struct *files;
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-
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+ int ret;
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int defer;
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- do {
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+
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+ for (;;) {
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+
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+ do {
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+ ret = wait_event_interruptible(binder_deferred_wq, !hlist_empty(&binder_deferred_list));
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+ } while (ret == -ERESTARTSYS);
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+ if (kthread_should_stop())
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+ break;
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+
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mutex_lock(&binder_lock);
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+
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mutex_lock(&binder_deferred_lock);
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if (!hlist_empty(&binder_deferred_list)) {
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proc = hlist_entry(binder_deferred_list.first,
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@@ -3097,24 +3110,27 @@ static void binder_deferred_func(struct work_struct *work)
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mutex_unlock(&binder_deferred_lock);
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files = NULL;
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- if (defer & BINDER_DEFERRED_PUT_FILES) {
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- files = proc->files;
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- if (files)
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- proc->files = NULL;
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- }
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+ if (proc != NULL) {
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- if (defer & BINDER_DEFERRED_FLUSH)
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- binder_deferred_flush(proc);
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+ if (defer & BINDER_DEFERRED_PUT_FILES) {
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+ files = proc->files;
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+ if (files)
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+ proc->files = NULL;
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+ }
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- if (defer & BINDER_DEFERRED_RELEASE)
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- binder_deferred_release(proc); /* frees proc */
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+ if (defer & BINDER_DEFERRED_FLUSH)
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+ binder_deferred_flush(proc);
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+
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+ if (defer & BINDER_DEFERRED_RELEASE)
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+ binder_deferred_release(proc); /* frees proc */
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+ }
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mutex_unlock(&binder_lock);
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if (files)
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put_files_struct(files);
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- } while (proc);
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+ }
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+ return 0;
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}
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-static DECLARE_WORK(binder_deferred_work, binder_deferred_func);
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static void
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binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer)
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@@ -3124,9 +3140,9 @@ binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer)
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if (hlist_unhashed(&proc->deferred_work_node)) {
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hlist_add_head(&proc->deferred_work_node,
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&binder_deferred_list);
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- queue_work(binder_deferred_workqueue, &binder_deferred_work);
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}
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mutex_unlock(&binder_deferred_lock);
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+ wake_up_interruptible(&binder_deferred_wq);
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}
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static void print_binder_transaction(struct seq_file *m, const char *prefix,
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@@ -3603,6 +3619,12 @@ static int __init binder_init(void)
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&binder_transaction_log_failed,
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&binder_transaction_log_fops);
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}
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+
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+ if (ret == 0) {
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+ binder_deferred_task = kthread_run(binder_deferred_thread, NULL, "binder_deferred_thread");
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+ if (binder_deferred_task == NULL)
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+ ret = PTR_ERR(binder_deferred_task);
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+ }
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return ret;
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}
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