include/linux/fcntl.h

   1 #ifndef _LINUX_FCNTL_H
   2 #define _LINUX_FCNTL_H
   3
   4 #include <asm/fcntl.h>
   5
   6 #define F_SETLEASE      (F_LINUX_SPECIFIC_BASE + 0)
   7 #define F_GETLEASE      (F_LINUX_SPECIFIC_BASE + 1)
   8
   9 /*
  10  * Cancel a blocking posix lock; internal use only until we expose an
  11  * asynchronous lock api to userspace:
  12  */
  13 #define F_CANCELLK      (F_LINUX_SPECIFIC_BASE + 5)
  14
  15 /* Create a file descriptor with FD_CLOEXEC set. */
  16 #define F_DUPFD_CLOEXEC (F_LINUX_SPECIFIC_BASE + 6)
  17
  18 /*
  19  * Request nofications on a directory.
  20  * See below for events that may be notified.
  21  */
  22 #define F_NOTIFY        (F_LINUX_SPECIFIC_BASE+2)
  23
  24 /*
  25  * Types of directory notifications that may be requested.
  26  */
  27 #define DN_ACCESS       0x00000001      /* File accessed */
  28 #define DN_MODIFY       0x00000002      /* File modified */
  29 #define DN_CREATE       0x00000004      /* File created */
  30 #define DN_DELETE       0x00000008      /* File removed */
  31 #define DN_RENAME       0x00000010      /* File renamed */
  32 #define DN_ATTRIB       0x00000020      /* File changed attibutes */
  33 #define DN_MULTISHOT    0x80000000      /* Don't remove notifier */
  34
  35 #define AT_FDCWD                -100    /* Special value used to indicate
  36                                            openat should use the current
  37                                            working directory. */
  38 #define AT_SYMLINK_NOFOLLOW     0x100   /* Do not follow symbolic links.  */
  39 #define AT_REMOVEDIR            0x200   /* Remove directory instead of
  40                                            unlinking file.  */
  41 #define AT_SYMLINK_FOLLOW       0x400   /* Follow symbolic links.  */
  42
  43 #ifdef __KERNEL__
  44
  45 #ifndef force_o_largefile
  46 #define force_o_largefile() (BITS_PER_LONG != 32)
  47 #endif
  48
  49 #if BITS_PER_LONG == 32
  50 #define IS_GETLK32(cmd)         ((cmd) == F_GETLK)
  51 #define IS_SETLK32(cmd)         ((cmd) == F_SETLK)
  52 #define IS_SETLKW32(cmd)        ((cmd) == F_SETLKW)
  53 #define IS_GETLK64(cmd)         ((cmd) == F_GETLK64)
  54 #define IS_SETLK64(cmd)         ((cmd) == F_SETLK64)
  55 #define IS_SETLKW64(cmd)        ((cmd) == F_SETLKW64)
  56 #else
  57 #define IS_GETLK32(cmd)         (0)
  58 #define IS_SETLK32(cmd)         (0)
  59 #define IS_SETLKW32(cmd)        (0)
  60 #define IS_GETLK64(cmd)         ((cmd) == F_GETLK)
  61 #define IS_SETLK64(cmd)         ((cmd) == F_SETLK)
  62 #define IS_SETLKW64(cmd)        ((cmd) == F_SETLKW)
  63 #endif /* BITS_PER_LONG == 32 */
  64
  65 #define IS_GETLK(cmd)   (IS_GETLK32(cmd)  || IS_GETLK64(cmd))
  66 #define IS_SETLK(cmd)   (IS_SETLK32(cmd)  || IS_SETLK64(cmd))
  67 #define IS_SETLKW(cmd)  (IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
  68
  69 #endif /* __KERNEL__ */
  70
  71 #endif