198 lines
5.5 KiB
Diff
198 lines
5.5 KiB
Diff
--- a/crypto/ocf/random.c
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+++ b/crypto/ocf/random.c
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@@ -49,6 +49,7 @@
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#include <linux/unistd.h>
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#include <linux/poll.h>
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#include <linux/random.h>
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+#include <linux/kthread.h>
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#include <cryptodev.h>
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#ifdef CONFIG_OCF_FIPS
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@@ -81,7 +82,7 @@ struct random_op {
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static int random_proc(void *arg);
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-static pid_t randomproc = (pid_t) -1;
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+static struct task_struct *random_task;
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static spinlock_t random_lock;
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/*
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@@ -141,13 +142,18 @@ crypto_rregister(
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spin_lock_irqsave(&random_lock, flags);
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list_add_tail(&rops->random_list, &random_ops);
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if (!started) {
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- randomproc = kernel_thread(random_proc, NULL, CLONE_FS|CLONE_FILES);
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- if (randomproc < 0) {
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- ret = randomproc;
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+ struct task_struct *t;
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+
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+ t = kthread_create(random_proc, NULL, "ocf-random");
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+ if (IS_ERR(t)) {
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+ ret = PTR_ERR(t);
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printk("crypto: crypto_rregister cannot start random thread; "
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"error %d", ret);
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- } else
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+ } else {
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+ random_task = t;
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+ wake_up_process(t);
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started = 1;
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+ }
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}
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spin_unlock_irqrestore(&random_lock, flags);
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@@ -172,7 +178,7 @@ crypto_runregister_all(u_int32_t driveri
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spin_lock_irqsave(&random_lock, flags);
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if (list_empty(&random_ops) && started)
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- kill_proc(randomproc, SIGKILL, 1);
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+ send_sig(SIGKILL, random_task, 1);
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spin_unlock_irqrestore(&random_lock, flags);
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return(0);
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}
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@@ -308,7 +314,7 @@ random_proc(void *arg)
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bad_alloc:
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spin_lock_irq(&random_lock);
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- randomproc = (pid_t) -1;
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+ random_task = NULL;
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started = 0;
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spin_unlock_irq(&random_lock);
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--- a/crypto/ocf/crypto.c
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+++ b/crypto/ocf/crypto.c
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@@ -74,6 +74,7 @@ __FBSDID("$FreeBSD: src/sys/opencrypto/c
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#include <linux/sched.h>
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#include <linux/spinlock.h>
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#include <linux/version.h>
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+#include <linux/kthread.h>
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#include <cryptodev.h>
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/*
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@@ -255,10 +256,10 @@ module_param(crypto_devallowsoft, int, 0
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MODULE_PARM_DESC(crypto_devallowsoft,
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"Enable/disable use of software crypto support");
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-static pid_t cryptoproc = (pid_t) -1;
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+static struct task_struct *crypto_task;
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static struct completion cryptoproc_exited;
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static DECLARE_WAIT_QUEUE_HEAD(cryptoproc_wait);
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-static pid_t cryptoretproc = (pid_t) -1;
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+static struct task_struct *cryptoret_task;
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static struct completion cryptoretproc_exited;
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static DECLARE_WAIT_QUEUE_HEAD(cryptoretproc_wait);
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@@ -1401,7 +1402,7 @@ crypto_proc(void *arg)
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wait_event_interruptible(cryptoproc_wait,
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!(list_empty(&crp_q) || crypto_all_qblocked) ||
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!(list_empty(&crp_kq) || crypto_all_kqblocked) ||
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- cryptoproc == (pid_t) -1);
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+ crypto_task == NULL);
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crp_sleep = 0;
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if (signal_pending (current)) {
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
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@@ -1414,7 +1415,7 @@ crypto_proc(void *arg)
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}
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CRYPTO_Q_LOCK();
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dprintk("%s - awake\n", __FUNCTION__);
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- if (cryptoproc == (pid_t) -1)
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+ if (crypto_task == NULL)
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break;
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cryptostats.cs_intrs++;
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}
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@@ -1470,7 +1471,7 @@ crypto_ret_proc(void *arg)
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dprintk("%s - sleeping\n", __FUNCTION__);
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CRYPTO_RETQ_UNLOCK();
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wait_event_interruptible(cryptoretproc_wait,
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- cryptoretproc == (pid_t) -1 ||
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+ cryptoret_task == NULL ||
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!list_empty(&crp_ret_q) ||
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!list_empty(&crp_ret_kq));
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if (signal_pending (current)) {
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@@ -1484,7 +1485,7 @@ crypto_ret_proc(void *arg)
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}
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CRYPTO_RETQ_LOCK();
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dprintk("%s - awake\n", __FUNCTION__);
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- if (cryptoretproc == (pid_t) -1) {
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+ if (cryptoret_task == NULL) {
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dprintk("%s - EXITING!\n", __FUNCTION__);
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break;
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}
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@@ -1597,6 +1598,7 @@ DB_SHOW_COMMAND(kcrypto, db_show_kcrypto
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static int
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crypto_init(void)
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{
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+ struct task_struct *t;
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int error;
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dprintk("%s(0x%x)\n", __FUNCTION__, (int) crypto_init);
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@@ -1643,23 +1645,27 @@ crypto_init(void)
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init_completion(&cryptoproc_exited);
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init_completion(&cryptoretproc_exited);
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- cryptoproc = 0; /* to avoid race condition where proc runs first */
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- cryptoproc = kernel_thread(crypto_proc, NULL, CLONE_FS|CLONE_FILES);
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- if (cryptoproc < 0) {
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- error = cryptoproc;
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+ crypto_task = NULL; /* to avoid race condition where proc runs first */
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+ t = kthread_create(crypto_proc, NULL, "ocf-crypto");
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+ if (IS_ERR(t)) {
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+ error = PTR_ERR(t);
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printk("crypto: crypto_init cannot start crypto thread; error %d",
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error);
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goto bad;
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}
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+ wake_up_process(t);
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+ crypto_task = t;
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- cryptoretproc = 0; /* to avoid race condition where proc runs first */
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- cryptoretproc = kernel_thread(crypto_ret_proc, NULL, CLONE_FS|CLONE_FILES);
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- if (cryptoretproc < 0) {
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- error = cryptoretproc;
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+ cryptoret_task = NULL; /* to avoid race condition where proc runs first */
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+ t = kthread_create(crypto_ret_proc, NULL, "ocf-cryptoret");
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+ if (IS_ERR(t)) {
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+ error = PTR_ERR(t);
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printk("crypto: crypto_init cannot start cryptoret thread; error %d",
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error);
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goto bad;
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}
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+ wake_up_process(t);
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+ cryptoret_task = t;
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return 0;
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bad:
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@@ -1671,7 +1677,7 @@ bad:
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static void
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crypto_exit(void)
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{
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- pid_t p;
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+ struct task_struct *t;
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unsigned long d_flags;
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dprintk("%s()\n", __FUNCTION__);
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@@ -1681,18 +1687,18 @@ crypto_exit(void)
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*/
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CRYPTO_DRIVER_LOCK();
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- p = cryptoproc;
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- cryptoproc = (pid_t) -1;
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- kill_proc(p, SIGTERM, 1);
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+ t = crypto_task;
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+ crypto_task = NULL;
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+ send_sig(SIGTERM, t, 1);
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wake_up_interruptible(&cryptoproc_wait);
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CRYPTO_DRIVER_UNLOCK();
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wait_for_completion(&cryptoproc_exited);
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CRYPTO_DRIVER_LOCK();
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- p = cryptoretproc;
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- cryptoretproc = (pid_t) -1;
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- kill_proc(p, SIGTERM, 1);
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+ t = cryptoret_task;
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+ cryptoret_task = NULL;
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+ send_sig(SIGTERM, t, 1);
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wake_up_interruptible(&cryptoretproc_wait);
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CRYPTO_DRIVER_UNLOCK();
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