diff options
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.29/973-ocf_2.6.27_fix.patch')
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.29/973-ocf_2.6.27_fix.patch | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.29/973-ocf_2.6.27_fix.patch b/target/linux/generic-2.6/patches-2.6.29/973-ocf_2.6.27_fix.patch new file mode 100644 index 000000000..6ffce01a2 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.29/973-ocf_2.6.27_fix.patch @@ -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(); + |