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/* list of all valid flags for the open/openat flags argument: */
   7#define VALID_OPEN_FLAGS \
   8        (O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | \
   9         O_APPEND | O_NDELAY | O_NONBLOCK | O_NDELAY | __O_SYNC | O_DSYNC | \
  10         FASYNC | O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | \
  11         O_NOATIME | O_CLOEXEC | O_PATH | __O_TMPFILE)
  12
  13#ifndef force_o_largefile
  14#define force_o_largefile() (BITS_PER_LONG != 32)
  15#endif
  16
  17#if BITS_PER_LONG == 32
  18#define IS_GETLK32(cmd)         ((cmd) == F_GETLK)
  19#define IS_SETLK32(cmd)         ((cmd) == F_SETLK)
  20#define IS_SETLKW32(cmd)        ((cmd) == F_SETLKW)
  21#define IS_GETLK64(cmd)         ((cmd) == F_GETLK64)
  22#define IS_SETLK64(cmd)         ((cmd) == F_SETLK64)
  23#define IS_SETLKW64(cmd)        ((cmd) == F_SETLKW64)
  24#else
  25#define IS_GETLK32(cmd)         (0)
  26#define IS_SETLK32(cmd)         (0)
  27#define IS_SETLKW32(cmd)        (0)
  28#define IS_GETLK64(cmd)         ((cmd) == F_GETLK)
  29#define IS_SETLK64(cmd)         ((cmd) == F_SETLK)
  30#define IS_SETLKW64(cmd)        ((cmd) == F_SETLKW)
  31#endif /* BITS_PER_LONG == 32 */
  32
  33#define IS_GETLK(cmd)   (IS_GETLK32(cmd)  || IS_GETLK64(cmd))
  34#define IS_SETLK(cmd)   (IS_SETLK32(cmd)  || IS_SETLK64(cmd))
  35#define IS_SETLKW(cmd)  (IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
  36
  37#endif
  38