1 files changed, 37 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/delay.h b/pfinet/linux-src/include/linux/delay.h
new file mode 100644
index 00000000..e1cf03d6
--- /dev/null
+++ b/pfinet/linux-src/include/linux/delay.h
@@ -0,0 +1,37 @@
+#ifndef _LINUX_DELAY_H
+#define _LINUX_DELAY_H
+
+/*
+ * Copyright (C) 1993 Linus Torvalds
+ *
+ * Delay routines, using a pre-computed "loops_per_second" value.
+ */
+
+extern unsigned long loops_per_sec;
+
+#include <asm/delay.h>
+
+/*
+ * Using udelay() for intervals greater than a few milliseconds can
+ * risk overflow for high loops_per_sec (high bogomips) machines. The
+ * mdelay() provides a wrapper to prevent this.  For delays greater
+ * than MAX_UDELAY_MS milliseconds, the wrapper is used.  Architecture
+ * specific values can be defined in asm-???/delay.h as an override.
+ * The 2nd mdelay() definition ensures GCC will optimize away the 
+ * while loop for the common cases where n <= MAX_UDELAY_MS  --  Paul G.
+ */
+
+#ifndef MAX_UDELAY_MS
+#define MAX_UDELAY_MS	5
+#endif
+
+#ifdef notdef
+#define mdelay(n) (\
+	{unsigned long msec=(n); while (msec--) udelay(1000);})
+#else
+#define mdelay(n) (\
+	(__builtin_constant_p(n) && (n)<=MAX_UDELAY_MS) ? udelay((n)*1000) : \
+	({unsigned long msec=(n); while (msec--) udelay(1000);}))
+#endif
+
+#endif /* defined(_LINUX_DELAY_H) */