2 * Copyright (c) 2015-2019 François Tigeot <ftigeot@wolfpond.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/spinlock2.h>
28 #include <linux/async.h>
30 #include <sys/kernel.h>
32 static async_cookie_t cookie_counter
= 1;
34 /* Protects cookie_counter */
35 static struct lock linux_async_lock
;
36 LOCK_SYSINIT(linux_async_lock
, &linux_async_lock
, "lasync", LK_CANRECURSE
);
38 /* async_schedule: schedule a function for asynchronous execution */
39 async_cookie_t
async_schedule(async_func_t func
, void *data
)
41 async_cookie_t cookie
;
43 lockmgr(&linux_async_lock
, LK_EXCLUSIVE
);
45 cookie
= cookie_counter
;
46 lockmgr(&linux_async_lock
, LK_RELEASE
);
48 /* XXX: Just run the function synchronously for now */