Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __LINUX_UDF_SB_H |
| 2 | #define __LINUX_UDF_SB_H |
| 3 | |
| 4 | /* Since UDF 2.01 is ISO 13346 based... */ |
| 5 | #define UDF_SUPER_MAGIC 0x15013346 |
| 6 | |
| 7 | #define UDF_MAX_READ_VERSION 0x0201 |
| 8 | #define UDF_MAX_WRITE_VERSION 0x0201 |
| 9 | |
| 10 | #define UDF_FLAG_USE_EXTENDED_FE 0 |
| 11 | #define UDF_VERS_USE_EXTENDED_FE 0x0200 |
| 12 | #define UDF_FLAG_USE_STREAMS 1 |
| 13 | #define UDF_VERS_USE_STREAMS 0x0200 |
| 14 | #define UDF_FLAG_USE_SHORT_AD 2 |
| 15 | #define UDF_FLAG_USE_AD_IN_ICB 3 |
| 16 | #define UDF_FLAG_USE_FILE_CTIME_EA 4 |
| 17 | #define UDF_FLAG_STRICT 5 |
| 18 | #define UDF_FLAG_UNDELETE 6 |
| 19 | #define UDF_FLAG_UNHIDE 7 |
| 20 | #define UDF_FLAG_VARCONV 8 |
| 21 | #define UDF_FLAG_NLS_MAP 9 |
| 22 | #define UDF_FLAG_UTF8 10 |
Cyrill Gorcunov | 28de794 | 2007-07-21 04:37:18 -0700 | [diff] [blame] | 23 | #define UDF_FLAG_UID_FORGET 11 /* save -1 for uid to disk */ |
| 24 | #define UDF_FLAG_UID_IGNORE 12 /* use sb uid instead of on disk uid */ |
Phillip Susi | 4d6660e | 2006-03-07 21:55:24 -0800 | [diff] [blame] | 25 | #define UDF_FLAG_GID_FORGET 13 |
| 26 | #define UDF_FLAG_GID_IGNORE 14 |
Cyrill Gorcunov | ca76d2d | 2007-07-31 00:39:40 -0700 | [diff] [blame] | 27 | #define UDF_FLAG_UID_SET 15 |
| 28 | #define UDF_FLAG_GID_SET 16 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
| 30 | #define UDF_PART_FLAG_UNALLOC_BITMAP 0x0001 |
| 31 | #define UDF_PART_FLAG_UNALLOC_TABLE 0x0002 |
| 32 | #define UDF_PART_FLAG_FREED_BITMAP 0x0004 |
| 33 | #define UDF_PART_FLAG_FREED_TABLE 0x0008 |
| 34 | #define UDF_PART_FLAG_READ_ONLY 0x0010 |
| 35 | #define UDF_PART_FLAG_WRITE_ONCE 0x0020 |
| 36 | #define UDF_PART_FLAG_REWRITABLE 0x0040 |
| 37 | #define UDF_PART_FLAG_OVERWRITABLE 0x0080 |
| 38 | |
| 39 | static inline struct udf_sb_info *UDF_SB(struct super_block *sb) |
| 40 | { |
| 41 | return sb->s_fs_info; |
| 42 | } |
| 43 | |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 44 | struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
| 46 | #define UDF_SB_ALLOC_PARTMAPS(X,Y)\ |
| 47 | {\ |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 48 | struct udf_sb_info *sbi = UDF_SB(X);\ |
| 49 | sbi->s_partmaps = kmalloc(sizeof(struct udf_part_map) * Y, GFP_KERNEL);\ |
| 50 | if (sbi->s_partmaps != NULL) {\ |
| 51 | sbi->s_partitions = Y;\ |
| 52 | memset(sbi->s_partmaps, 0x00, sizeof(struct udf_part_map) * Y);\ |
Cyrill Gorcunov | 28de794 | 2007-07-21 04:37:18 -0700 | [diff] [blame] | 53 | } else {\ |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 54 | sbi->s_partitions = 0;\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | udf_error(X, __FUNCTION__, "Unable to allocate space for %d partition maps", Y);\ |
| 56 | }\ |
| 57 | } |
| 58 | |
| 59 | #define UDF_SB_ALLOC_BITMAP(X,Y,Z)\ |
| 60 | {\ |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 61 | struct udf_sb_info *sbi = UDF_SB(X);\ |
| 62 | int nr_groups = ((sbi->s_partmaps[(Y)].s_partition_len + (sizeof(struct spaceBitmapDesc) << 3) +\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | ((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\ |
| 64 | int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\ |
| 65 | if (size <= PAGE_SIZE)\ |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 66 | sbi->s_partmaps[(Y)].Z.s_bitmap = kmalloc(size, GFP_KERNEL);\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | else\ |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 68 | sbi->s_partmaps[(Y)].Z.s_bitmap = vmalloc(size);\ |
| 69 | if (sbi->s_partmaps[(Y)].Z.s_bitmap != NULL) {\ |
| 70 | memset(sbi->s_partmaps[(Y)].Z.s_bitmap, 0x00, size);\ |
| 71 | sbi->s_partmaps[(Y)].Z.s_bitmap->s_block_bitmap =\ |
| 72 | (struct buffer_head **)(sbi->s_partmaps[(Y)].Z.s_bitmap + 1);\ |
| 73 | sbi->s_partmaps[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\ |
Cyrill Gorcunov | 28de794 | 2007-07-21 04:37:18 -0700 | [diff] [blame] | 74 | } else {\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\ |
| 76 | }\ |
| 77 | } |
| 78 | |
| 79 | #define UDF_SB_FREE_BITMAP(X,Y,Z)\ |
| 80 | {\ |
| 81 | int i;\ |
| 82 | int nr_groups = UDF_SB_BITMAP_NR_GROUPS(X,Y,Z);\ |
| 83 | int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\ |
Cyrill Gorcunov | 28de794 | 2007-07-21 04:37:18 -0700 | [diff] [blame] | 84 | for (i = 0; i < nr_groups; i++) {\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | if (UDF_SB_BITMAP(X,Y,Z,i))\ |
Jan Kara | 3bf25cb | 2007-05-08 00:35:16 -0700 | [diff] [blame] | 86 | brelse(UDF_SB_BITMAP(X,Y,Z,i));\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | }\ |
| 88 | if (size <= PAGE_SIZE)\ |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 89 | kfree(UDF_SB(X)->s_partmaps[Y].Z.s_bitmap);\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | else\ |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 91 | vfree(UDF_SB(X)->s_partmaps[Y].Z.s_bitmap);\ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | #define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) ) |
| 95 | #define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) ) |
| 96 | #define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) ) |
| 97 | |
Marcin Slusarz | 6c79e98 | 2008-02-08 04:20:30 -0800 | [diff] [blame^] | 98 | #define UDF_SB_BITMAP(X,Y,Z,I) ( UDF_SB(X)->s_partmaps[(Y)].Z.s_bitmap->s_block_bitmap[I] ) |
| 99 | #define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z) ( UDF_SB(X)->s_partmaps[(Y)].Z.s_bitmap->s_nr_groups ) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
Cyrill Gorcunov | 28de794 | 2007-07-21 04:37:18 -0700 | [diff] [blame] | 101 | #endif /* __LINUX_UDF_SB_H */ |