mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-08-21 01:25:52 +03:00
[kernel] add experimental fix for OCF on 2.6.27.y (closes #4184)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13341 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
parent
70342a708e
commit
6bde956ce1
197
target/linux/generic-2.6/patches-2.6.27/973-ocf_2.6.27_fix.patch
Normal file
197
target/linux/generic-2.6/patches-2.6.27/973-ocf_2.6.27_fix.patch
Normal file
@ -0,0 +1,197 @@
|
||||
--- 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();
|
||||
|
Loading…
Reference in New Issue
Block a user