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HPFS: Fix endianity. Make hpfs work on big-endian machines

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Fix endianity. Make hpfs work on big-endian machines.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mikulas Patocka
2011-05-08 20:44:26 +02:00
committed by Linus Torvalds
parent bc8728ee56
commit 0b69760be6
11 changed files with 498 additions and 418 deletions
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50
fs/hpfs/super.c
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@@ -135,7 +135,7 @@ static unsigned count_bitmaps(struct super_block *s)
n_bands = (hpfs_sb(s)->sb_fs_size + 0x3fff) >> 14;
count = 0;
for (n = 0; n < n_bands; n++)
count += hpfs_count_one_bitmap(s, hpfs_sb(s)->sb_bmp_dir[n]);
count += hpfs_count_one_bitmap(s, le32_to_cpu(hpfs_sb(s)->sb_bmp_dir[n]));
return count;
}
@@ -509,9 +509,9 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (!(spareblock = hpfs_map_sector(s, 17, &bh2, 0))) goto bail3;
/* Check magics */
if (/*bootblock->magic != BB_MAGIC
||*/ superblock->magic != SB_MAGIC
|| spareblock->magic != SP_MAGIC) {
if (/*le16_to_cpu(bootblock->magic) != BB_MAGIC
||*/ le32_to_cpu(superblock->magic) != SB_MAGIC
|| le32_to_cpu(spareblock->magic) != SP_MAGIC) {
if (!silent) printk("HPFS: Bad magic ... probably not HPFS\n");
goto bail4;
}
@@ -532,12 +532,12 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
s->s_op = &hpfs_sops;
s->s_d_op = &hpfs_dentry_operations;
sbi->sb_root = superblock->root;
sbi->sb_fs_size = superblock->n_sectors;
sbi->sb_bitmaps = superblock->bitmaps;
sbi->sb_dirband_start = superblock->dir_band_start;
sbi->sb_dirband_size = superblock->n_dir_band;
sbi->sb_dmap = superblock->dir_band_bitmap;
sbi->sb_root = le32_to_cpu(superblock->root);
sbi->sb_fs_size = le32_to_cpu(superblock->n_sectors);
sbi->sb_bitmaps = le32_to_cpu(superblock->bitmaps);
sbi->sb_dirband_start = le32_to_cpu(superblock->dir_band_start);
sbi->sb_dirband_size = le32_to_cpu(superblock->n_dir_band);
sbi->sb_dmap = le32_to_cpu(superblock->dir_band_bitmap);
sbi->sb_uid = uid;
sbi->sb_gid = gid;
sbi->sb_mode = 0777 & ~umask;
@@ -555,7 +555,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
sbi->sb_max_fwd_alloc = 0xffffff;
/* Load bitmap directory */
if (!(sbi->sb_bmp_dir = hpfs_load_bitmap_directory(s, superblock->bitmaps)))
if (!(sbi->sb_bmp_dir = hpfs_load_bitmap_directory(s, le32_to_cpu(superblock->bitmaps))))
goto bail4;
/* Check for general fs errors*/
@@ -573,7 +573,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
mark_buffer_dirty(bh2);
}
if (spareblock->hotfixes_used || spareblock->n_spares_used) {
if (le32_to_cpu(spareblock->hotfixes_used) || le32_to_cpu(spareblock->n_spares_used)) {
if (errs >= 2) {
printk("HPFS: Hotfixes not supported here, try chkdsk\n");
mark_dirty(s, 0);
@@ -583,7 +583,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (errs == 0) printk("HPFS: Proceeding, but your filesystem will be probably corrupted by this driver...\n");
else printk("HPFS: This driver may read bad files or crash when operating on disk with hotfixes.\n");
}
if (spareblock->n_dnode_spares != spareblock->n_dnode_spares_free) {
if (le32_to_cpu(spareblock->n_dnode_spares) != le32_to_cpu(spareblock->n_dnode_spares_free)) {
if (errs >= 2) {
printk("HPFS: Spare dnodes used, try chkdsk\n");
mark_dirty(s, 0);
@@ -594,17 +594,17 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
}
if (chk) {
unsigned a;
if (superblock->dir_band_end - superblock->dir_band_start + 1 != superblock->n_dir_band ||
superblock->dir_band_end < superblock->dir_band_start || superblock->n_dir_band > 0x4000) {
if (le32_to_cpu(superblock->dir_band_end) - le32_to_cpu(superblock->dir_band_start) + 1 != le32_to_cpu(superblock->n_dir_band) ||
le32_to_cpu(superblock->dir_band_end) < le32_to_cpu(superblock->dir_band_start) || le32_to_cpu(superblock->n_dir_band) > 0x4000) {
hpfs_error(s, "dir band size mismatch: dir_band_start==%08x, dir_band_end==%08x, n_dir_band==%08x",
superblock->dir_band_start, superblock->dir_band_end, superblock->n_dir_band);
le32_to_cpu(superblock->dir_band_start), le32_to_cpu(superblock->dir_band_end), le32_to_cpu(superblock->n_dir_band));
goto bail4;
}
a = sbi->sb_dirband_size;
sbi->sb_dirband_size = 0;
if (hpfs_chk_sectors(s, superblock->dir_band_start, superblock->n_dir_band, "dir_band") ||
hpfs_chk_sectors(s, superblock->dir_band_bitmap, 4, "dir_band_bitmap") ||
hpfs_chk_sectors(s, superblock->bitmaps, 4, "bitmaps")) {
if (hpfs_chk_sectors(s, le32_to_cpu(superblock->dir_band_start), le32_to_cpu(superblock->n_dir_band), "dir_band") ||
hpfs_chk_sectors(s, le32_to_cpu(superblock->dir_band_bitmap), 4, "dir_band_bitmap") ||
hpfs_chk_sectors(s, le32_to_cpu(superblock->bitmaps), 4, "bitmaps")) {
mark_dirty(s, 0);
goto bail4;
}
@@ -612,8 +612,8 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
} else printk("HPFS: You really don't want any checks? You are crazy...\n");
/* Load code page table */
if (spareblock->n_code_pages)
if (!(sbi->sb_cp_table = hpfs_load_code_page(s, spareblock->code_page_dir)))
if (le32_to_cpu(spareblock->n_code_pages))
if (!(sbi->sb_cp_table = hpfs_load_code_page(s, le32_to_cpu(spareblock->code_page_dir))))
printk("HPFS: Warning: code page support is disabled\n");
brelse(bh2);
@@ -642,13 +642,13 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
if (!de)
hpfs_error(s, "unable to find root dir");
else {
root->i_atime.tv_sec = local_to_gmt(s, de->read_date);
root->i_atime.tv_sec = local_to_gmt(s, le32_to_cpu(de->read_date));
root->i_atime.tv_nsec = 0;
root->i_mtime.tv_sec = local_to_gmt(s, de->write_date);
root->i_mtime.tv_sec = local_to_gmt(s, le32_to_cpu(de->write_date));
root->i_mtime.tv_nsec = 0;
root->i_ctime.tv_sec = local_to_gmt(s, de->creation_date);
root->i_ctime.tv_sec = local_to_gmt(s, le32_to_cpu(de->creation_date));
root->i_ctime.tv_nsec = 0;
hpfs_i(root)->i_ea_size = de->ea_size;
hpfs_i(root)->i_ea_size = le16_to_cpu(de->ea_size);
hpfs_i(root)->i_parent_dir = root->i_ino;
if (root->i_size == -1)
root->i_size = 2048;