kernel-ark/include/linux/fcntl.h

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#ifndef _LINUX_FCNTL_H
#define _LINUX_FCNTL_H
#include <uapi/linux/fcntl.h>
#ifndef force_o_largefile
#define force_o_largefile() (BITS_PER_LONG != 32)
#endif
#if BITS_PER_LONG == 32
#define IS_GETLK32(cmd) ((cmd) == F_GETLK)
#define IS_SETLK32(cmd) ((cmd) == F_SETLK)
#define IS_SETLKW32(cmd) ((cmd) == F_SETLKW)
#define IS_GETLK64(cmd) ((cmd) == F_GETLK64)
#define IS_SETLK64(cmd) ((cmd) == F_SETLK64)
#define IS_SETLKW64(cmd) ((cmd) == F_SETLKW64)
#else
#define IS_GETLK32(cmd) (0)
#define IS_SETLK32(cmd) (0)
#define IS_SETLKW32(cmd) (0)
#define IS_GETLK64(cmd) ((cmd) == F_GETLK)
#define IS_SETLK64(cmd) ((cmd) == F_SETLK)
#define IS_SETLKW64(cmd) ((cmd) == F_SETLKW)
#endif /* BITS_PER_LONG == 32 */
#define IS_GETLK(cmd) (IS_GETLK32(cmd) || IS_GETLK64(cmd))
#define IS_SETLK(cmd) (IS_SETLK32(cmd) || IS_SETLK64(cmd))
#define IS_SETLKW(cmd) (IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
#endif