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Staging: android: binder: Create dedicated workqueue for binder deferred work

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Some drivers flush the global workqueue when closed. This would deadlock if
the last reference to the file was released from the binder.

Change-Id: Ifdabc0b383fecb20836d1bbb9786c632402a14e1
Signed-off-by: Arve Hjønnevåg <arve@android.com>
This commit is contained in:
Arve Hjønnevåg
2010-04-22 15:53:23 -07:00
parent 49ff3070f5
commit 64fa454e9d
1 changed files with 6 additions and 1 deletions
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7
drivers/staging/android/binder.c
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@@ -46,6 +46,7 @@ static struct proc_dir_entry *binder_proc_dir_entry_proc;
static struct binder_node *binder_context_mgr_node;
static uid_t binder_context_mgr_uid = -1;
static int binder_last_id;
static struct workqueue_struct *binder_deferred_workqueue;
static int binder_read_proc_proc(char *page, char **start, off_t off,
int count, int *eof, void *data);
@@ -3099,7 +3100,7 @@ binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer)
if (hlist_unhashed(&proc->deferred_work_node)) {
hlist_add_head(&proc->deferred_work_node,
&binder_deferred_list);
schedule_work(&binder_deferred_work);
queue_work(binder_deferred_workqueue, &binder_deferred_work);
}
mutex_unlock(&binder_deferred_lock);
}
@@ -3727,6 +3728,10 @@ static int __init binder_init(void)
{
int ret;
binder_deferred_workqueue = create_singlethread_workqueue("binder");
if (!binder_deferred_workqueue)
return -ENOMEM;
binder_proc_dir_entry_root = proc_mkdir("binder", NULL);
if (binder_proc_dir_entry_root)
binder_proc_dir_entry_proc = proc_mkdir("proc",