FreeBSD/Linux Kernel Cross Reference
sys/fs/ntfs/macros.h
1 /*
2 * macros.h
3 *
4 * Copyright (C) 1995 Martin von Löwis
5 * Copyright (C) 1996 Régis Duchesne
6 * Copyright (c) 2001 Anton Altaparmakov
7 */
8 #include <linux/ntfs_fs_i.h>
9 #include <linux/fs.h>
10 #include <asm/page.h>
11
12 #define NTFS_FD(vol) ((vol)->u.fd)
13
14 #define NTFS_SB(vol) ((struct super_block*)(vol)->sb)
15 #define NTFS_SB2VOL(sb) (&(sb)->u.ntfs_sb)
16 #define NTFS_INO2VOL(ino) (&((ino)->i_sb->u.ntfs_sb))
17 #define NTFS_LINO2NINO(ino) ((struct ntfs_inode_info*)(&((ino)->u.ntfs_i)))
18 static inline struct inode *VFS_I(struct ntfs_inode_info *ntfs_ino)
19 {
20 struct inode *i = (struct inode*)((char*)ntfs_ino -
21 ((char*)&(((struct inode*)NULL)->u.ntfs_i) -
22 (char*)NULL));
23 #ifdef DEBUG
24 if ((char*)NTFS_LINO2NINO(i) != (char*)ntfs_ino)
25 BUG();
26 #endif
27 return i;
28 }
29
30 #define IS_MAGIC(a,b) (*(int*)(a) == *(int*)(b))
31 #define IS_MFT_RECORD(a) IS_MAGIC((a),"FILE")
32 #define IS_INDEX_RECORD(a) IS_MAGIC((a),"INDX")
33
34 /* 'NTFS' in little endian */
35 #define NTFS_SUPER_MAGIC 0x5346544E
36
37 #define NTFS_AFLAG_RO 1
38 #define NTFS_AFLAG_HIDDEN 2
39 #define NTFS_AFLAG_SYSTEM 4
40 #define NTFS_AFLAG_ARCHIVE 20
41 #define NTFS_AFLAG_COMPRESSED 0x800
42 #define NTFS_AFLAG_DIR 0x10000000
43
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