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hpfs: assorted endianness annotations 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2012-04-17 16:41:13 -04:00
parent 77ee26e44c
commit 28fe3c1963
4 changed files with 60 additions and 60 deletions
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108
fs/hpfs/hpfs.h
View File

@ -51,11 +51,11 @@ struct hpfs_boot_block
u8 n_rootdir_entries[2]; u8 n_rootdir_entries[2];
u8 n_sectors_s[2]; u8 n_sectors_s[2];
u8 media_byte; u8 media_byte;
u16 sectors_per_fat; __le16 sectors_per_fat;
u16 sectors_per_track; __le16 sectors_per_track;
u16 heads_per_cyl; __le16 heads_per_cyl;
u32 n_hidden_sectors; __le32 n_hidden_sectors;
u32 n_sectors_l; /* size of partition */ __le32 n_sectors_l; /* size of partition */
u8 drive_number; u8 drive_number;
u8 mbz; u8 mbz;
u8 sig_28h; /* 28h */ u8 sig_28h; /* 28h */
@ -63,7 +63,7 @@ struct hpfs_boot_block
u8 vol_label[11]; u8 vol_label[11];
u8 sig_hpfs[8]; /* "HPFS " */ u8 sig_hpfs[8]; /* "HPFS " */
u8 pad[448]; u8 pad[448];
u16 magic; /* aa55 */ __le16 magic; /* aa55 */
}; };
@ -75,28 +75,28 @@ struct hpfs_boot_block
struct hpfs_super_block struct hpfs_super_block
{ {
u32 magic; /* f995 e849 */ __le32 magic; /* f995 e849 */
u32 magic1; /* fa53 e9c5, more magic? */ __le32 magic1; /* fa53 e9c5, more magic? */
u8 version; /* version of a filesystem usually 2 */ u8 version; /* version of a filesystem usually 2 */
u8 funcversion; /* functional version - oldest version u8 funcversion; /* functional version - oldest version
of filesystem that can understand of filesystem that can understand
this disk */ this disk */
u16 zero; /* 0 */ __le16 zero; /* 0 */
fnode_secno root; /* fnode of root directory */ __le32 root; /* fnode of root directory */
secno n_sectors; /* size of filesystem */ __le32 n_sectors; /* size of filesystem */
u32 n_badblocks; /* number of bad blocks */ __le32 n_badblocks; /* number of bad blocks */
secno bitmaps; /* pointers to free space bit maps */ __le32 bitmaps; /* pointers to free space bit maps */
u32 zero1; /* 0 */ __le32 zero1; /* 0 */
secno badblocks; /* bad block list */ __le32 badblocks; /* bad block list */
u32 zero3; /* 0 */ __le32 zero3; /* 0 */
time32_t last_chkdsk; /* date last checked, 0 if never */ __le32 last_chkdsk; /* date last checked, 0 if never */
time32_t last_optimize; /* date last optimized, 0 if never */ __le32 last_optimize; /* date last optimized, 0 if never */
secno n_dir_band; /* number of sectors in dir band */ __le32 n_dir_band; /* number of sectors in dir band */
secno dir_band_start; /* first sector in dir band */ __le32 dir_band_start; /* first sector in dir band */
secno dir_band_end; /* last sector in dir band */ __le32 dir_band_end; /* last sector in dir band */
secno dir_band_bitmap; /* free space map, 1 dnode per bit */ __le32 dir_band_bitmap; /* free space map, 1 dnode per bit */
u8 volume_name[32]; /* not used */ u8 volume_name[32]; /* not used */
secno user_id_table; /* 8 preallocated sectors - user id */ __le32 user_id_table; /* 8 preallocated sectors - user id */
u32 zero6[103]; /* 0 */ u32 zero6[103]; /* 0 */
}; };
@ -109,8 +109,8 @@ struct hpfs_super_block
struct hpfs_spare_block struct hpfs_spare_block
{ {
u32 magic; /* f991 1849 */ __le32 magic; /* f991 1849 */
u32 magic1; /* fa52 29c5, more magic? */ __le32 magic1; /* fa52 29c5, more magic? */
#ifdef __LITTLE_ENDIAN #ifdef __LITTLE_ENDIAN
u8 dirty: 1; /* 0 clean, 1 "improperly stopped" */ u8 dirty: 1; /* 0 clean, 1 "improperly stopped" */
@ -153,21 +153,21 @@ struct hpfs_spare_block
u8 mm_contlgulty; u8 mm_contlgulty;
u8 unused; u8 unused;
secno hotfix_map; /* info about remapped bad sectors */ __le32 hotfix_map; /* info about remapped bad sectors */
u32 n_spares_used; /* number of hotfixes */ __le32 n_spares_used; /* number of hotfixes */
u32 n_spares; /* number of spares in hotfix map */ __le32 n_spares; /* number of spares in hotfix map */
u32 n_dnode_spares_free; /* spare dnodes unused */ __le32 n_dnode_spares_free; /* spare dnodes unused */
u32 n_dnode_spares; /* length of spare_dnodes[] list, __le32 n_dnode_spares; /* length of spare_dnodes[] list,
follows in this block*/ follows in this block*/
secno code_page_dir; /* code page directory block */ __le32 code_page_dir; /* code page directory block */
u32 n_code_pages; /* number of code pages */ __le32 n_code_pages; /* number of code pages */
u32 super_crc; /* on HPFS386 and LAN Server this is __le32 super_crc; /* on HPFS386 and LAN Server this is
checksum of superblock, on normal checksum of superblock, on normal
OS/2 unused */ OS/2 unused */
u32 spare_crc; /* on HPFS386 checksum of spareblock */ __le32 spare_crc; /* on HPFS386 checksum of spareblock */
u32 zero1[15]; /* unused */ __le32 zero1[15]; /* unused */
dnode_secno spare_dnodes[100]; /* emergency free dnode list */ __le32 spare_dnodes[100]; /* emergency free dnode list */
u32 zero2[1]; /* room for more? */ __le32 zero2[1]; /* room for more? */
}; };
/* The bad block list is 4 sectors long. The first word must be zero, /* The bad block list is 4 sectors long. The first word must be zero,
@ -202,18 +202,18 @@ struct hpfs_spare_block
struct code_page_directory struct code_page_directory
{ {
u32 magic; /* 4945 21f7 */ __le32 magic; /* 4945 21f7 */
u32 n_code_pages; /* number of pointers following */ __le32 n_code_pages; /* number of pointers following */
u32 zero1[2]; __le32 zero1[2];
struct { struct {
u16 ix; /* index */ __le16 ix; /* index */
u16 code_page_number; /* code page number */ __le16 code_page_number; /* code page number */
u32 bounds; /* matches corresponding word __le32 bounds; /* matches corresponding word
in data block */ in data block */
secno code_page_data; /* sector number of a code_page_data __le32 code_page_data; /* sector number of a code_page_data
containing c.p. array */ containing c.p. array */
u16 index; /* index in c.p. array in that sector*/ __le16 index; /* index in c.p. array in that sector*/
u16 unknown; /* some unknown value; usually 0; __le16 unknown; /* some unknown value; usually 0;
2 in Japanese version */ 2 in Japanese version */
} array[31]; /* unknown length */ } array[31]; /* unknown length */
}; };
@ -224,19 +224,19 @@ struct code_page_directory
struct code_page_data struct code_page_data
{ {
u32 magic; /* 8945 21f7 */ __le32 magic; /* 8945 21f7 */
u32 n_used; /* # elements used in c_p_data[] */ __le32 n_used; /* # elements used in c_p_data[] */
u32 bounds[3]; /* looks a bit like __le32 bounds[3]; /* looks a bit like
(beg1,end1), (beg2,end2) (beg1,end1), (beg2,end2)
one byte each */ one byte each */
u16 offs[3]; /* offsets from start of sector __le16 offs[3]; /* offsets from start of sector
to start of c_p_data[ix] */ to start of c_p_data[ix] */
struct { struct {
u16 ix; /* index */ __le16 ix; /* index */
u16 code_page_number; /* code page number */ __le16 code_page_number; /* code page number */
u16 unknown; /* the same as in cp directory */ __le16 unknown; /* the same as in cp directory */
u8 map[128]; /* upcase table for chars 80..ff */ u8 map[128]; /* upcase table for chars 80..ff */
u16 zero2; __le16 zero2;
} code_page[3]; } code_page[3];
u8 incognita[78]; u8 incognita[78];
}; };

4
fs/hpfs/hpfs_fn.h
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@ -82,7 +82,7 @@ struct hpfs_sb_info {
unsigned char *sb_cp_table; /* code page tables: */ unsigned char *sb_cp_table; /* code page tables: */
/* 128 bytes uppercasing table & */ /* 128 bytes uppercasing table & */
/* 128 bytes lowercasing table */ /* 128 bytes lowercasing table */
unsigned *sb_bmp_dir; /* main bitmap directory */ __le32 *sb_bmp_dir; /* main bitmap directory */
unsigned sb_c_bitmap; /* current bitmap */ unsigned sb_c_bitmap; /* current bitmap */
unsigned sb_max_fwd_alloc; /* max forwad allocation */ unsigned sb_max_fwd_alloc; /* max forwad allocation */
int sb_timeshift; int sb_timeshift;
@ -278,7 +278,7 @@ void hpfs_evict_inode(struct inode *);
__le32 *hpfs_map_dnode_bitmap(struct super_block *, struct quad_buffer_head *); __le32 *hpfs_map_dnode_bitmap(struct super_block *, struct quad_buffer_head *);
__le32 *hpfs_map_bitmap(struct super_block *, unsigned, struct quad_buffer_head *, char *); __le32 *hpfs_map_bitmap(struct super_block *, unsigned, struct quad_buffer_head *, char *);
unsigned char *hpfs_load_code_page(struct super_block *, secno); unsigned char *hpfs_load_code_page(struct super_block *, secno);
secno *hpfs_load_bitmap_directory(struct super_block *, secno bmp); __le32 *hpfs_load_bitmap_directory(struct super_block *, secno bmp);
struct fnode *hpfs_map_fnode(struct super_block *s, ino_t, struct buffer_head **); struct fnode *hpfs_map_fnode(struct super_block *s, ino_t, struct buffer_head **);
struct anode *hpfs_map_anode(struct super_block *s, anode_secno, struct buffer_head **); struct anode *hpfs_map_anode(struct super_block *s, anode_secno, struct buffer_head **);
struct dnode *hpfs_map_dnode(struct super_block *s, dnode_secno, struct quad_buffer_head *); struct dnode *hpfs_map_dnode(struct super_block *s, dnode_secno, struct quad_buffer_head *);

6
fs/hpfs/map.c
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@ -89,18 +89,18 @@ unsigned char *hpfs_load_code_page(struct super_block *s, secno cps)
return cp_table; return cp_table;
} }
secno *hpfs_load_bitmap_directory(struct super_block *s, secno bmp) __le32 *hpfs_load_bitmap_directory(struct super_block *s, secno bmp)
{ {
struct buffer_head *bh; struct buffer_head *bh;
int n = (hpfs_sb(s)->sb_fs_size + 0x200000 - 1) >> 21; int n = (hpfs_sb(s)->sb_fs_size + 0x200000 - 1) >> 21;
int i; int i;
secno *b; __le32 *b;
if (!(b = kmalloc(n * 512, GFP_KERNEL))) { if (!(b = kmalloc(n * 512, GFP_KERNEL))) {
printk("HPFS: can't allocate memory for bitmap directory\n"); printk("HPFS: can't allocate memory for bitmap directory\n");
return NULL; return NULL;
} }
for (i=0;i<n;i++) { for (i=0;i<n;i++) {
secno *d = hpfs_map_sector(s, bmp+i, &bh, n - i - 1); __le32 *d = hpfs_map_sector(s, bmp+i, &bh, n - i - 1);
if (!d) { if (!d) {
kfree(b); kfree(b);
return NULL; return NULL;

2
fs/hpfs/super.c
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@ -572,7 +572,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
mark_buffer_dirty(bh2); mark_buffer_dirty(bh2);
} }
if (spareblock->hotfixes_used || le32_to_cpu(spareblock->n_spares_used)) { if (spareblock->hotfixes_used || spareblock->n_spares_used) {
if (errs >= 2) { if (errs >= 2) {
printk("HPFS: Hotfixes not supported here, try chkdsk\n"); printk("HPFS: Hotfixes not supported here, try chkdsk\n");
mark_dirty(s, 0); mark_dirty(s, 0);