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      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  * Request nofications on a directory.
     11  * See below for events that may be notified.
     12  */
     13 #define F_NOTIFY	(F_LINUX_SPECIFIC_BASE+2)
     14 
     15 /*
     16  * Types of directory notifications that may be requested.
     17  */
     18 #define DN_ACCESS	0x00000001	/* File accessed */
     19 #define DN_MODIFY	0x00000002	/* File modified */
     20 #define DN_CREATE	0x00000004	/* File created */
     21 #define DN_DELETE	0x00000008	/* File removed */
     22 #define DN_RENAME	0x00000010	/* File renamed */
     23 #define DN_ATTRIB	0x00000020	/* File changed attibutes */
     24 #define DN_MULTISHOT	0x80000000	/* Don't remove notifier */
     25 
     26 #define AT_FDCWD		-100    /* Special value used to indicate
     27                                            openat should use the current
     28                                            working directory. */
     29 #define AT_SYMLINK_NOFOLLOW	0x100   /* Do not follow symbolic links.  */
     30 #define AT_REMOVEDIR		0x200   /* Remove directory instead of
     31                                            unlinking file.  */
     32 #define AT_SYMLINK_FOLLOW	0x400   /* Follow symbolic links.  */
     33 
     34 #ifdef __KERNEL__
     35 
     36 #ifndef force_o_largefile
     37 #define force_o_largefile() (BITS_PER_LONG != 32)
     38 #endif
     39 
     40 #if BITS_PER_LONG == 32
     41 #define IS_GETLK32(cmd)		((cmd) == F_GETLK)
     42 #define IS_SETLK32(cmd)		((cmd) == F_SETLK)
     43 #define IS_SETLKW32(cmd)	((cmd) == F_SETLKW)
     44 #define IS_GETLK64(cmd)		((cmd) == F_GETLK64)
     45 #define IS_SETLK64(cmd)		((cmd) == F_SETLK64)
     46 #define IS_SETLKW64(cmd)	((cmd) == F_SETLKW64)
     47 #else
     48 #define IS_GETLK32(cmd)		(0)
     49 #define IS_SETLK32(cmd)		(0)
     50 #define IS_SETLKW32(cmd)	(0)
     51 #define IS_GETLK64(cmd)		((cmd) == F_GETLK)
     52 #define IS_SETLK64(cmd)		((cmd) == F_SETLK)
     53 #define IS_SETLKW64(cmd)	((cmd) == F_SETLKW)
     54 #endif /* BITS_PER_LONG == 32 */
     55 
     56 #define IS_GETLK(cmd)	(IS_GETLK32(cmd)  || IS_GETLK64(cmd))
     57 #define IS_SETLK(cmd)	(IS_SETLK32(cmd)  || IS_SETLK64(cmd))
     58 #define IS_SETLKW(cmd)	(IS_SETLKW32(cmd) || IS_SETLKW64(cmd))
     59 
     60 #endif /* __KERNEL__ */
     61 
     62 #endif
     63