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isofs: Fix isofs_get_blocks for 8TB files 

Currently isofs_get_blocks() was limited to handle only 4TB files on 32-bit
architectures because of unnecessary use of iblock variable which was signed
long. Just remove the variable. The error messages that were using this
variable should have rather used b_off anyway because that is the block we
are currently mapping.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Jan Kara 2010-10-04 11:37:37 +02:00 committed by Al Viro
parent ebdec241d5
commit fde214d414
1 changed files with 8 additions and 9 deletions
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17
fs/isofs/inode.c
View File

@ -962,25 +962,23 @@ static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
* or getblk() if they are not. Returns the number of blocks inserted * or getblk() if they are not. Returns the number of blocks inserted
* (-ve == error.) * (-ve == error.)
*/ */
int isofs_get_blocks(struct inode *inode, sector_t iblock_s, int isofs_get_blocks(struct inode *inode, sector_t iblock,
struct buffer_head **bh, unsigned long nblocks) struct buffer_head **bh, unsigned long nblocks)
{ {
unsigned long b_off; unsigned long b_off = iblock;
unsigned offset, sect_size; unsigned offset, sect_size;
unsigned int firstext; unsigned int firstext;
unsigned long nextblk, nextoff; unsigned long nextblk, nextoff;
long iblock = (long)iblock_s;
int section, rv, error; int section, rv, error;
struct iso_inode_info *ei = ISOFS_I(inode); struct iso_inode_info *ei = ISOFS_I(inode);
error = -EIO; error = -EIO;
rv = 0; rv = 0;
if (iblock < 0 || iblock != iblock_s) { if (iblock != b_off) {
printk(KERN_DEBUG "%s: block number too large\n", __func__); printk(KERN_DEBUG "%s: block number too large\n", __func__);
goto abort; goto abort;
} }
b_off = iblock;
offset = 0; offset = 0;
firstext = ei->i_first_extent; firstext = ei->i_first_extent;
@ -998,8 +996,9 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
* I/O errors. * I/O errors.
*/ */
if (b_off > ((inode->i_size + PAGE_CACHE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) { if (b_off > ((inode->i_size + PAGE_CACHE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) {
printk(KERN_DEBUG "%s: block >= EOF (%ld, %ld)\n", printk(KERN_DEBUG "%s: block >= EOF (%lu, %llu)\n",
__func__, iblock, (unsigned long) inode->i_size); __func__, b_off,
(unsigned long long)inode->i_size);
goto abort; goto abort;
} }
@ -1025,9 +1024,9 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
if (++section > 100) { if (++section > 100) {
printk(KERN_DEBUG "%s: More than 100 file sections ?!?" printk(KERN_DEBUG "%s: More than 100 file sections ?!?"
" aborting...\n", __func__); " aborting...\n", __func__);
printk(KERN_DEBUG "%s: block=%ld firstext=%u sect_size=%u " printk(KERN_DEBUG "%s: block=%lu firstext=%u sect_size=%u "
"nextblk=%lu nextoff=%lu\n", __func__, "nextblk=%lu nextoff=%lu\n", __func__,
iblock, firstext, (unsigned) sect_size, b_off, firstext, (unsigned) sect_size,
nextblk, nextoff); nextblk, nextoff);
goto abort; goto abort;
} }