LXR linux/include/linux/fcntl.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _LINUX_FCNTL_H
   3#define _LINUX_FCNTL_H
   4
   5#include <uapi/linux/fcntl.h>
   6
   7/* list of all valid flags for the open/openat flags argument: */
   8#define VALID_OPEN_FLAGS \
   9        (O_RDONLY | O_WRONLY | O_RDWR | O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC | \
  10         O_APPEND | O_NDELAY | O_NONBLOCK | O_NDELAY | __O_SYNC | O_DSYNC | \
  11         FASYNC | O_DIRECT | O_LARGEFILE | O_DIRECTORY | O_NOFOLLOW | \
  12         O_NOATIME | O_CLOEXEC | O_PATH | __O_TMPFILE)
  13
  14#ifndef force_o_largefile
  15#define force_o_largefile() (!IS_ENABLED(CONFIG_ARCH_32BIT_OFF_T))
  16#endif
  17
  18#if BITS_PER_LONG == 32
  19#define IS_GETLK32(cmd)         ((cmd) == F_GETLK)
  20#define IS_SETLK32(cmd)         ((cmd) == F_SETLK)
  21#define IS_SETLKW32(cmd)        ((cmd) == F_SETLKW)
  22#define IS_GETLK64(cmd)         ((cmd) == F_GETLK64)
  23#define IS_SETLK64(cmd)         ((cmd) == F_SETLK64)
  24#define IS_SETLKW64(cmd)        ((cmd) == F_SETLKW64)
  25#else
  26#define IS_GETLK32(cmd)         (0)
  27#define IS_SETLK32(cmd)         (0)
  28#define IS_SETLKW32(cmd)        (0)
  29#define IS_GETLK64(cmd)         ((cmd) == F_GETLK)
  30#define IS_SETLK64(cmd)         ((cmd) == F_SETLK)
  31#define IS_SETLKW64(cmd)        ((cmd) == F_SETLKW)
  32#endif /* BITS_PER_LONG == 32 */
  33
  34#define IS_GETLK(cmd)   (IS_GETLK32(cmd)  || IS_GETLK64(cmd))
  35#define IS_SETLK(cmd)   (IS_SETLK32(cmd)  || IS_SETLK64(cmd))
  36#define IS_SETLKW(cmd)  (IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
  37
  38#endif
  39