include/asm-x86_64/param.h

#ifndef _ASMx86_64_PARAM_H
#define _ASMx86_64_PARAM_H

#ifdef __KERNEL__
# define HZ            1000            /* Internal kernel timer frequency */
# define USER_HZ       100          /* .. some user interfaces are in "ticks */
#define CLOCKS_PER_SEC        (USER_HZ)       /* like times() */
#endif

#ifndef HZ
#define HZ 100
#endif

#define EXEC_PAGESIZE	4096

#ifndef NOGROUP
#define NOGROUP		(-1)
#endif

#define MAXHOSTNAMELEN	64	/* max length of hostname */

#endif