ocf-linux: version bump to 20110720

[openwrt/svn-archive/archive.git] / target / linux / generic / files / crypto / ocf / ocf-compat.h

diff --git a/target/linux/generic/files/crypto/ocf/ocf-compat.h b/target/linux/generic/files/crypto/ocf/ocf-compat.h
index 212f971239de0ddd4c003e0ec9c29085e1cebc0e..2d985360f273a24c5f1ceef4f922c61e4fc09e4a 100644 (file)
--- a/target/linux/generic/files/crypto/ocf/ocf-compat.h
+++ b/target/linux/generic/files/crypto/ocf/ocf-compat.h
@@ -34,6 +34,11 @@
  */
 /****************************************************************************/
 #ifdef __KERNEL__
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38) && !defined(AUTOCONF_INCLUDED)
+#include <linux/config.h>
+#endif
+
 /*
  * fake some BSD driver interface stuff specifically for OCF use
  */
@@ -288,6 +293,72 @@ static inline void *sg_virt(struct scatterlist *sg)
 #define late_initcall(init) module_init(init)
 #endif
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4) || !defined(CONFIG_SMP)
+#define ocf_for_each_cpu(cpu) for ((cpu) = 0; (cpu) == 0; (cpu)++)
+#else
+#define ocf_for_each_cpu(cpu) for_each_present_cpu(cpu)
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
+#include <linux/sched.h>
+#define        kill_proc(p,s,v)        send_sig(s,find_task_by_vpid(p),0)
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,4)
+
+struct ocf_thread {
+       struct task_struct      *task;
+       int                                     (*func)(void *arg);
+       void                            *arg;
+};
+
+/* thread startup helper func */
+static inline int ocf_run_thread(void *arg)
+{
+       struct ocf_thread *t = (struct ocf_thread *) arg;
+       if (!t)
+               return -1; /* very bad */
+       t->task = current;
+       daemonize();
+       spin_lock_irq(&current->sigmask_lock);
+       sigemptyset(&current->blocked);
+       recalc_sigpending(current);
+       spin_unlock_irq(&current->sigmask_lock);
+       return (*t->func)(t->arg);
+}
+
+#define kthread_create(f,a,fmt...) \
+       ({ \
+               struct ocf_thread t; \
+               pid_t p; \
+               t.task = NULL; \
+               t.func = (f); \
+               t.arg = (a); \
+               p = kernel_thread(ocf_run_thread, &t, CLONE_FS|CLONE_FILES); \
+               while (p != (pid_t) -1 && t.task == NULL) \
+                       schedule(); \
+               if (t.task) \
+                       snprintf(t.task->comm, sizeof(t.task->comm), fmt); \
+               (t.task); \
+       })
+
+#define kthread_bind(t,cpu)    /**/
+
+#define kthread_should_stop()  (strcmp(current->comm, "stopping") == 0)
+
+#define kthread_stop(t) \
+       ({ \
+               strcpy((t)->comm, "stopping"); \
+               kill_proc((t)->pid, SIGTERM, 1); \
+               do { \
+                       schedule(); \
+               } while (kill_proc((t)->pid, SIGTERM, 1) == 0); \
+       })
+
+#else
+#include <linux/kthread.h>
+#endif
+
 #endif /* __KERNEL__ */
 
 /****************************************************************************/