LXR linux/include/linux/fcntl.h

   1#ifndef _LINUX_FCNTL_H
   2#define _LINUX_FCNTL_H
   3
   4#include <uapi/linux/fcntl.h>
   5
   6
   7#ifndef force_o_largefile
   8#define force_o_largefile() (BITS_PER_LONG != 32)
   9#endif
  10
  11#if BITS_PER_LONG == 32
  12#define IS_GETLK32(cmd)         ((cmd) == F_GETLK)
  13#define IS_SETLK32(cmd)         ((cmd) == F_SETLK)
  14#define IS_SETLKW32(cmd)        ((cmd) == F_SETLKW)
  15#define IS_GETLK64(cmd)         ((cmd) == F_GETLK64)
  16#define IS_SETLK64(cmd)         ((cmd) == F_SETLK64)
  17#define IS_SETLKW64(cmd)        ((cmd) == F_SETLKW64)
  18#else
  19#define IS_GETLK32(cmd)         (0)
  20#define IS_SETLK32(cmd)         (0)
  21#define IS_SETLKW32(cmd)        (0)
  22#define IS_GETLK64(cmd)         ((cmd) == F_GETLK)
  23#define IS_SETLK64(cmd)         ((cmd) == F_SETLK)
  24#define IS_SETLKW64(cmd)        ((cmd) == F_SETLKW)
  25#endif /* BITS_PER_LONG == 32 */
  26
  27#define IS_GETLK(cmd)   (IS_GETLK32(cmd)  || IS_GETLK64(cmd))
  28#define IS_SETLK(cmd)   (IS_SETLK32(cmd)  || IS_SETLK64(cmd))
  29#define IS_SETLKW(cmd)  (IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
  30
  31#endif
  32