130fa5bc81
The crypto algorithm modules utilizing the crypto daemon could be used early when the system start up. Using module_init does not guarantee that the daemon's work queue is initialized when the cypto alorithm depending on crypto_wq starts. It is necessary to initialize the crypto work queue earlier at the subsystem init time to make sure that it is initialized when used. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
40 lines
972 B
C
40 lines
972 B
C
/*
|
|
* Workqueue for crypto subsystem
|
|
*
|
|
* Copyright (c) 2009 Intel Corp.
|
|
* Author: Huang Ying <ying.huang@intel.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*
|
|
*/
|
|
|
|
#include <linux/workqueue.h>
|
|
#include <linux/module.h>
|
|
#include <crypto/algapi.h>
|
|
#include <crypto/crypto_wq.h>
|
|
|
|
struct workqueue_struct *kcrypto_wq;
|
|
EXPORT_SYMBOL_GPL(kcrypto_wq);
|
|
|
|
static int __init crypto_wq_init(void)
|
|
{
|
|
kcrypto_wq = alloc_workqueue("crypto",
|
|
WQ_MEM_RECLAIM | WQ_CPU_INTENSIVE, 1);
|
|
if (unlikely(!kcrypto_wq))
|
|
return -ENOMEM;
|
|
return 0;
|
|
}
|
|
|
|
static void __exit crypto_wq_exit(void)
|
|
{
|
|
destroy_workqueue(kcrypto_wq);
|
|
}
|
|
|
|
subsys_initcall(crypto_wq_init);
|
|
module_exit(crypto_wq_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DESCRIPTION("Workqueue for crypto subsystem");
|