include/asm-um/delay.h

#ifndef __UM_DELAY_H
#define __UM_DELAY_H

#define MILLION 1000000

/* Undefined on purpose */
extern void __bad_udelay(void);

extern void __udelay(unsigned long usecs);
extern void __delay(unsigned long loops);

#define udelay(n) ((__builtin_constant_p(n) && (n) > 20000) ? \
	__bad_udelay() : __udelay(n))

/* It appears that ndelay is not used at all for UML, and has never been
 * implemented. */
extern void __unimplemented_ndelay(void);
#define ndelay(n) __unimplemented_ndelay()

#endif
Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00			`#ifndef __UM_DELAY_H`
			`#define __UM_DELAY_H`

[PATCH] uml: s390 preparation, delay moved to arch 2005-05-05 16:15:37 -07:00			`#define MILLION 1000000`

[PATCH] uml: fix unreasonably long udelay 2007-04-01 23:49:37 -07:00			`/* Undefined on purpose */`
			`extern void __bad_udelay(void);`

			`extern void __udelay(unsigned long usecs);`
			`extern void __delay(unsigned long loops);`

			`#define udelay(n) ((__builtin_constant_p(n) && (n) > 20000) ? \`
			`__bad_udelay() : __udelay(n))`

			`/* It appears that ndelay is not used at all for UML, and has never been`
			`* implemented. */`
			`extern void __unimplemented_ndelay(void);`
			`#define ndelay(n) __unimplemented_ndelay()`

Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00			`#endif`