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8021q: fix a potential memory leak
[mirror_ubuntu-bionic-kernel.git] / include / linux / async.h
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1/*
2 * async.h: Asynchronous function calls for boot performance
3 *
4 * (C) Copyright 2009 Intel Corporation
5 * Author: Arjan van de Ven <arjan@linux.intel.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; version 2
10 * of the License.
11 */
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12#ifndef __ASYNC_H__
13#define __ASYNC_H__
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14
15#include <linux/types.h>
16#include <linux/list.h>
17
18typedef u64 async_cookie_t;
362f2b09 19typedef void (*async_func_t) (void *data, async_cookie_t cookie);
2955b47d 20struct async_domain {
52722794 21 struct list_head pending;
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22 unsigned registered:1;
23};
24
25/*
26 * domain participates in global async_synchronize_full
27 */
28#define ASYNC_DOMAIN(_name) \
cc2a8b1a 29 struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \
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30 .registered = 1 }
31
32/*
33 * domain is free to go out of scope as soon as all pending work is
34 * complete, this domain does not participate in async_synchronize_full
35 */
36#define ASYNC_DOMAIN_EXCLUSIVE(_name) \
cc2a8b1a 37 struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \
2955b47d 38 .registered = 0 }
22a9d645 39
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40extern async_cookie_t async_schedule(async_func_t func, void *data);
41extern async_cookie_t async_schedule_domain(async_func_t func, void *data,
2955b47d 42 struct async_domain *domain);
a4683487 43void async_unregister_domain(struct async_domain *domain);
22a9d645 44extern void async_synchronize_full(void);
2955b47d 45extern void async_synchronize_full_domain(struct async_domain *domain);
22a9d645 46extern void async_synchronize_cookie(async_cookie_t cookie);
766ccb9e 47extern void async_synchronize_cookie_domain(async_cookie_t cookie,
2955b47d 48 struct async_domain *domain);
84b233ad 49extern bool current_is_async(void);
2955b47d 50#endif