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