The patch below removes some dead code and nonsense code.
The part that changes behaviour is
- if (sbi->s_cruft == 'n' &&
- (volume_seq_no != 0) && (volume_seq_no != 1)) {
- printk(KERN_WARNING "Warning: defective CD-ROM "
- "(volume sequence number %d). "
- "Enabling \"cruft\" mount option.\n", volume_seq_no);
- sbi->s_cruft = 'y';
- }
that has already bitten lots of people.
Nothing is wrong with a volume sequence number different from 0 or 1.
(Cf. Ecma-119.pdf, Sections 4.17, 4.18, 6.6.)
Andries
--- linux-2.5.41/linux/fs/isofs/inode.c Sat Oct 5 13:46:10 2002
+++ linux-2.5.41a/linux/fs/isofs/inode.c Wed Oct 9 23:34:06 2002
@@ -34,11 +34,6 @@
#include "zisofs.h"
-/*
- * We have no support for "multi volume" CDs, but more and more disks carry
- * wrong information within the volume descriptors.
- */
-#define IGNORE_WRONG_MULTI_VOLUME_SPECS
#define BEQUIET
#ifdef LEAK_CHECK
@@ -556,19 +551,6 @@
if (!parse_options((char *) data, &opt))
goto out_freesbi;
-#if 0
- printk("map = %c\n", opt.map);
- printk("rock = %c\n", opt.rock);
- printk("joliet = %c\n", opt.joliet);
- printk("check = %c\n", opt.check);
- printk("cruft = %c\n", opt.cruft);
- printk("unhide = %c\n", opt.unhide);
- printk("blocksize = %d\n", opt.blocksize);
- printk("gid = %d\n", opt.gid);
- printk("uid = %d\n", opt.uid);
- printk("iocharset = %s\n", opt.iocharset);
-#endif
-
/*
* First of all, get the hardware blocksize for this device.
* If we don't know what it is, or the hardware blocksize is
@@ -673,19 +655,11 @@
if(sbi->s_high_sierra){
rootp = (struct iso_directory_record *) h_pri->root_directory_record;
-#ifndef IGNORE_WRONG_MULTI_VOLUME_SPECS
- if (isonum_723 (h_pri->volume_set_size) != 1)
- goto out_no_support;
-#endif /* IGNORE_WRONG_MULTI_VOLUME_SPECS */
sbi->s_nzones = isonum_733 (h_pri->volume_space_size);
sbi->s_log_zone_size = isonum_723 (h_pri->logical_block_size);
sbi->s_max_size = isonum_733(h_pri->volume_space_size);
} else {
rootp = (struct iso_directory_record *) pri->root_directory_record;
-#ifndef IGNORE_WRONG_MULTI_VOLUME_SPECS
- if (isonum_723 (pri->volume_set_size) != 1)
- goto out_no_support;
-#endif /* IGNORE_WRONG_MULTI_VOLUME_SPECS */
sbi->s_nzones = isonum_733 (pri->volume_space_size);
sbi->s_log_zone_size = isonum_723 (pri->logical_block_size);
sbi->s_max_size = isonum_733(pri->volume_space_size);
@@ -898,11 +872,6 @@
printk(KERN_WARNING "Logical zone size(%d) < hardware blocksize(%u)\n",
orig_zonesize, opt.blocksize);
goto out_freebh;
-#ifndef IGNORE_WRONG_MULTI_VOLUME_SPECS
-out_no_support:
- printk(KERN_WARNING "Multi-volume disks not supported.\n");
- goto out_freebh;
-#endif
out_unknown_format:
if (!silent)
printk(KERN_WARNING "Unable to identify CD-ROM format.\n");
@@ -1313,7 +1282,7 @@
iso_date(de->date, high_sierra);
ei->i_first_extent = (isonum_733 (de->extent) +
- isonum_711 (de->ext_attr_length));
+ isonum_711 (de->ext_attr_length));
/* Set the number of blocks for stat() - should be done before RR */
inode->i_blksize = PAGE_CACHE_SIZE; /* For stat() only */
@@ -1334,51 +1303,30 @@
/* get the volume sequence number */
volume_seq_no = isonum_723 (de->volume_sequence_number) ;
- /*
- * Disable checking if we see any volume number other than 0 or 1.
- * We could use the cruft option, but that has multiple purposes, one
- * of which is limiting the file size to 16Mb. Thus we silently allow
- * volume numbers of 0 to go through without complaining.
- */
- if (sbi->s_cruft == 'n' &&
- (volume_seq_no != 0) && (volume_seq_no != 1)) {
- printk(KERN_WARNING "Warning: defective CD-ROM "
- "(volume sequence number %d). "
- "Enabling \"cruft\" mount option.\n", volume_seq_no);
- sbi->s_cruft = 'y';
- }
-
/* Install the inode operations vector */
-#ifndef IGNORE_WRONG_MULTI_VOLUME_SPECS
- if (sbi->s_cruft != 'y' &&
- (volume_seq_no != 0) && (volume_seq_no != 1)) {
- printk(KERN_WARNING "Multi-volume CD somehow got mounted.\n");
- } else
-#endif /*IGNORE_WRONG_MULTI_VOLUME_SPECS */
- {
- if (S_ISREG(inode->i_mode)) {
- inode->i_fop = &generic_ro_fops;
- switch ( ei->i_file_format ) {
+ if (S_ISREG(inode->i_mode)) {
+ inode->i_fop = &generic_ro_fops;
+ switch ( ei->i_file_format ) {
#ifdef CONFIG_ZISOFS
- case isofs_file_compressed:
- inode->i_data.a_ops = &zisofs_aops;
- break;
+ case isofs_file_compressed:
+ inode->i_data.a_ops = &zisofs_aops;
+ break;
#endif
- default:
- inode->i_data.a_ops = &isofs_aops;
- break;
- }
- } else if (S_ISDIR(inode->i_mode)) {
- inode->i_op = &isofs_dir_inode_operations;
- inode->i_fop = &isofs_dir_operations;
- } else if (S_ISLNK(inode->i_mode)) {
- inode->i_op = &page_symlink_inode_operations;
- inode->i_data.a_ops = &isofs_symlink_aops;
- } else
- /* XXX - parse_rock_ridge_inode() had already set i_rdev. */
- init_special_inode(inode, inode->i_mode,
- kdev_t_to_nr(inode->i_rdev));
- }
+ default:
+ inode->i_data.a_ops = &isofs_aops;
+ break;
+ }
+ } else if (S_ISDIR(inode->i_mode)) {
+ inode->i_op = &isofs_dir_inode_operations;
+ inode->i_fop = &isofs_dir_operations;
+ } else if (S_ISLNK(inode->i_mode)) {
+ inode->i_op = &page_symlink_inode_operations;
+ inode->i_data.a_ops = &isofs_symlink_aops;
+ } else
+ /* XXX - parse_rock_ridge_inode() had already set i_rdev. */
+ init_special_inode(inode, inode->i_mode,
+ kdev_t_to_nr(inode->i_rdev));
+
out:
if (tmpde)
kfree(tmpde);