Linux Kernel  3.7.1
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fcntl.h
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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