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c24c95a085
linux/fs
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Eric Sandeen 39b3f6d6e9 [PATCH] mount udf UDF_PART_FLAG_READ_ONLY partitions with MS_RDONLY 
There's a bug where a UDF_PART_FLAG_READ_ONLY udf partition gets mounted
read-write, then subsequent problems happen; files seem to be able to be
removed, but file creation results in EIO or worse, oops.

EIO is coming from udf_new_block(), which returns EIO if the right flags
aren't set; only UDF_PART_FLAG_READ_ONLY is set in this case.  We probably
s hould not have gotten this far...

Attached patch seems to fix it - and includes a printk to alert the user
that their "rw" mount request has been converted to "ro."

Here's the testcase I used:

[root@magnesium ~]# mkisofs -R -J -udf -o testiso /tmp/
...
Total translation table size: 0
Total rockridge attributes bytes: 342923
Total directory bytes: 382312
Path table size(bytes): 104
Max brk space used 103000
105059 extents written (205 MB)

[root@magnesium ~]# mount -o loop testiso /mnt/test/
[root@magnesium ~]# ls /mnt/test/fsfile
/mnt/test/fsfile
[root@magnesium ~]# rm /mnt/test/fsfile
[root@magnesium ~]# ls /mnt/test/fsfile
ls: /mnt/test/fsfile: No such file or directory
[root@magnesium ~]# touch /mnt/test/fsfile
touch: cannot touch `/mnt/test/fsfile': Input/output error
[root@magnesium tmp]# grep udf /proc/mounts
/dev/loop1 /mnt/test udf rw 0 0

Force readonly mounts of UDF partitions marked as read-only.

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29 09:18:09 -07:00
..
9p [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
adfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
affs [PATCH] Really ignore kmem_cache_destroy return value 2006-09-27 08:26:10 -07:00
afs [PATCH] afs: add lock annotations to afs_proc_cell_servers_{start,stop} 2006-09-29 09:18:07 -07:00
autofs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
autofs4 [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
befs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
bfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
cifs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
coda [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
configfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
cramfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
debugfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
devpts [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
efs [PATCH] Really ignore kmem_cache_destroy return value 2006-09-27 08:26:10 -07:00
exportfs
ext2 [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
ext3 [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
fat [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
freevxfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
fuse [PATCH] vfs: define new lookup flag for chdir 2006-09-29 09:18:08 -07:00
hfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
hfsplus [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
hostfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
hpfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
hppfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
hugetlbfs [PATCH] hugetlbfs: add lock annotation to hugetlbfs_forget_inode() 2006-09-29 09:18:08 -07:00
isofs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
jbd [PATCH] JBD: memory leak in "journal_init_dev()" 2006-09-29 09:18:03 -07:00
jffs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
jffs2 [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
jfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
lockd [PATCH] add newline to nfs dprintk 2006-09-27 08:26:19 -07:00
minix [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
msdos
ncpfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
nfs [PATCH] fs/nfs/: make code static 2006-09-27 08:26:20 -07:00
nfs_common
nfsd [PATCH] Really ignore kmem_cache_destroy return value 2006-09-27 08:26:10 -07:00
nls
ntfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
ocfs2 [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
openpromfs Move several *_SUPER_MAGIC symbols to include/linux/magic.h. 2006-09-24 11:13:19 -04:00
partitions [PATCH] ignore partition table on disks with AIX label 2006-09-29 09:18:09 -07:00
proc [PATCH] NOMMU: move the fallback arch_vma_name() to a sensible place 2006-09-27 08:26:15 -07:00
qnx4 [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
ramfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
reiserfs [PATCH] use gcc -O1 in fs/reiserfs only for ancient gcc versions 2006-09-29 09:18:07 -07:00
romfs [PATCH] Really ignore kmem_cache_destroy return value 2006-09-27 08:26:10 -07:00
smbfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
sysfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
sysv [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
udf [PATCH] mount udf UDF_PART_FLAG_READ_ONLY partitions with MS_RDONLY 2006-09-29 09:18:09 -07:00
ufs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
vfat
xfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
aio.c
attr.c
bad_inode.c
binfmt_aout.c [PATCH] Require mmap handler for a.out executables 2006-09-29 09:18:08 -07:00
binfmt_elf_fdpic.c
binfmt_elf.c Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-09-26 13:07:55 -07:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
binfmt_script.c
binfmt_som.c
bio.c
block_dev.c [PATCH] blockdev.c: check driver layer errors 2006-09-29 09:18:04 -07:00
buffer.c [PATCH] mm: tracking shared dirty pages 2006-09-26 08:48:44 -07:00
char_dev.c [PATCH] NOMMU: Set BDI capabilities for /dev/mem and /dev/kmem 2006-09-27 08:26:14 -07:00
compat_ioctl.c
compat.c [PATCH] Check return value of copy_to_user in compat_sys_pselect7 2006-09-26 10:52:39 +02:00
dcache.c NFS: Add dentry materialisation op 2006-09-22 23:24:30 -04:00
dcookies.c
direct-io.c
dnotify.c
dquot.c
drop_caches.c
eventpoll.c [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
exec.c [PATCH] de_thread: Use tsk not current 2006-09-27 08:26:20 -07:00
fcntl.c
fifo.c
file_table.c [PATCH] inode-diet: Move i_cdev into a union 2006-09-27 08:26:17 -07:00
file.c [PATCH] alloc_fdtable() cleanup 2006-09-27 08:26:19 -07:00
filesystems.c
fs-writeback.c
inode.c [PATCH] inode-diet: Move i_cdev into a union 2006-09-27 08:26:17 -07:00
inotify_user.c
inotify.c
ioctl.c
ioprio.c
Kconfig [PATCH] sysctl: Allow /proc/sys without sys_sysctl 2006-09-27 08:26:19 -07:00
Kconfig.binfmt
libfs.c [PATCH] libfs: remove page up-to-date check from simple_readpage 2006-09-29 09:18:06 -07:00
locks.c
Makefile
mbcache.c [PATCH] mbcache: add lock annotation for __mb_cache_entry_release_unlock() 2006-09-29 09:18:07 -07:00
mpage.c
namei.c [PATCH] autofs4 needs to force fail return revalidate 2006-09-27 08:26:17 -07:00
namespace.c [PATCH] fs/namespace: handle init/registration errors 2006-09-29 09:18:05 -07:00
nfsctl.c
open.c [PATCH] vfs: define new lookup flag for chdir 2006-09-29 09:18:08 -07:00
pipe.c [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
pnode.c
pnode.h
posix_acl.c
quota_v1.c
quota_v2.c
quota.c
read_write.c
readdir.c
select.c
seq_file.c
splice.c
stat.c [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
super.c [PATCH] fs: add lock annotation to grab_super 2006-09-29 09:18:08 -07:00
sync.c
xattr_acl.c
xattr.c