Mounting of HFS CD-ROM broke between 2.4.9 and 2.4.10

Mounting of HFS CD-ROM broke between 2.4.9 and 2.4.10

[Romain Dolbeau]

Hello,

HFS (Hierarchical File Sytem, from Apple) formatted CD-ROM used
to mount fine until 2.4.9, and file on them were accessible.
They won't mount anymore in 2.4.10 and 2.4.12. Error messages are:

#####
ll_rw_block: device 0b:00: only 2048-char blocks implemented (512)
hfs_fs: unable to read block 0x00000002 from dev 0b:00
hfs_fs: Unable to read superblock
ll_rw_block: device 0b:00: only 2048-char blocks implemented (512)
hfs_fs: unable to read block 0x00000000 from dev 0b:00
hfs_fs: Unable to read block 0.
#####

Between 2.4.9 and 2.4.10, changes were made to this function
including:

#####
--- linux-2.4.9/drivers/block/ll_rw_blk.c       Sat Aug  4 07:37:09 2001
+++ linux-2.4.10/drivers/block/ll_rw_blk.c      Fri Sep 21 06:02:01 2001
[SNIP some other changes]
@@ -990,12 +973,7 @@
        major = MAJOR(bhs[0]->b_dev);
 
        /* Determine correct block size for this device. */
-       correct_size = BLOCK_SIZE;
-       if (blksize_size[major]) {
-               i = blksize_size[major][MINOR(bhs[0]->b_dev)];
-               if (i)
-                       correct_size = i;
-       }
+       correct_size = get_hardsect_size(bhs[0]->b_dev);
 
        /* Verify requested block sizes. */
        for (i = 0; i < nr; i++) {
#####

A check then made on correct_size fails with the above error message.

-- 
DOLBEAU Romain               | Brothers of Metal will always be there     
ENS Cachan / Ker Lann        | Standing together with hands in the air    
Thesard IRISA / CAPS         |           -- Manowar,                      
dolbeaur@club-internet.fr    |                     'Brothers of Metal'