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@xxxxxxx>
---
fs/isofs/inode.c | 18 ++++++++----------
1 files changed, 8 insertions(+), 10 deletions(-)
Andrew, would you merge this fix please? Thanks.
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index d8a68e7..a2de39d 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -962,26 +962,23 @@ static int isofs_statfs (struct dentry *dentry, struct kstatfs *buf)
* or getblk() if they are not. Returns the number of blocks inserted
* (-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)
{
- unsigned long b_off;
+ unsigned long b_off = iblock;
unsigned offset, sect_size;
unsigned int firstext;
unsigned long nextblk, nextoff;
- long iblock = (long)iblock_s;
int section, rv, error;
struct iso_inode_info *ei = ISOFS_I(inode);
error = -EIO;
rv = 0;
- if (iblock < 0 || iblock != iblock_s) {
+ if (iblock != b_off) {
printk(KERN_DEBUG "%s: block number too large\n", __func__);
goto abort;
}
- b_off = iblock;
-
offset = 0;
firstext = ei->i_first_extent;
sect_size = ei->i_section_size >> ISOFS_BUFFER_BITS(inode);
@@ -998,8 +995,9 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
* I/O errors.
*/
if (b_off > ((inode->i_size + PAGE_CACHE_SIZE - 1) >> ISOFS_BUFFER_BITS(inode))) {
- printk(KERN_DEBUG "%s: block >= EOF (%ld, %ld)\n",
- __func__, iblock, (unsigned long) inode->i_size);
+ printk(KERN_DEBUG "%s: block >= EOF (%lu, %llu)\n",
+ __func__, b_off,
+ (unsigned long long)inode->i_size);
goto abort;
}
@@ -1025,9 +1023,9 @@ int isofs_get_blocks(struct inode *inode, sector_t iblock_s,
if (++section > 100) {
printk(KERN_DEBUG "%s: More than 100 file sections ?!?"
" 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__,
- iblock, firstext, (unsigned) sect_size,
+ b_off, firstext, (unsigned) sect_size,
nextblk, nextoff);
goto abort;
}
--
1.6.4.2
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