ddk: tiny libc and kernel imports library

git-svn-id: svn://kolibrios.org@1408 a494cfbc-eb01-0410-851d-a64ba20cac60

drivers/include/linux/asm-generic/bitops/sched.h

@@ -0,0 +1,31 @@
+#ifndef _ASM_GENERIC_BITOPS_SCHED_H_
+#define _ASM_GENERIC_BITOPS_SCHED_H_
+
+#include <linux/compiler.h>	/* unlikely() */
+#include <asm/types.h>
+
+/*
+ * Every architecture must define this function. It's the fastest
+ * way of searching a 100-bit bitmap.  It's guaranteed that at least
+ * one of the 100 bits is cleared.
+ */
+static inline int sched_find_first_bit(const unsigned long *b)
+{
+#if BITS_PER_LONG == 64
+	if (b[0])
+		return __ffs(b[0]);
+	return __ffs(b[1]) + 64;
+#elif BITS_PER_LONG == 32
+	if (b[0])
+		return __ffs(b[0]);
+	if (b[1])
+		return __ffs(b[1]) + 32;
+	if (b[2])
+		return __ffs(b[2]) + 64;
+	return __ffs(b[3]) + 96;
+#else
+#error BITS_PER_LONG not defined
+#endif
+}
+
+#endif /* _ASM_GENERIC_BITOPS_SCHED_H_ */