Jan Kara 31147bc619 udf: Fix data corruption for files in ICB ...

commit 9c2fc0de1a upstream.

When a file is stored in ICB (inode), we overwrite part of the file, and
the page containing file's data is not in page cache, we end up corrupting
file's data by overwriting them with zeros. The problem is we use
simple_write_begin() which simply zeroes parts of the page which are not
written to. The problem has been introduced by be021ee4 (udf: convert to
new aops).

Fix the problem by providing a ->write_begin function which makes the page
properly uptodate.

Reported-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2012-09-14 10:00:50 -07:00

..

balloc.c

udf: use little-endian bitops

2011-03-23 19:46:19 -07:00

dir.c

udf: Remove unnecessary bkl usages

2011-01-06 17:03:57 +01:00

directory.c

udf: Remove dead code

2009-09-14 19:13:00 +02:00

ecma_167.h

Remove struct typedefs from fs/udf/ecma_167.h et al.

2009-04-02 12:29:47 +02:00

file.c

udf: Fix data corruption for files in ICB

2012-09-14 10:00:50 -07:00

ialloc.c

udf: Move handling of uniqueID into a helper function and protect it by a s_alloc_mutex

2011-01-06 17:03:55 +01:00

inode.c

udf: Fix deadlock when converting file from in-ICB one to normal one

2012-01-12 11:35:09 -08:00

Kconfig

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6

2011-01-11 14:45:52 -08:00

lowlevel.c

udf: Remove dead code

2009-09-14 19:13:00 +02:00

Makefile

switch udf to simple_fsync()

2009-06-11 21:36:13 -04:00

misc.c

Fix the udf code not to pass structs on stack where possible.

2009-04-02 12:29:47 +02:00

namei.c

udf: remove unnecessary dentry_unhash from rmdir, dir rename

2011-05-28 01:02:52 -04:00

osta_udf.h

Remove struct typedefs from fs/udf/ecma_167.h et al.

2009-04-02 12:29:47 +02:00

partition.c

udf: Use of s_alloc_mutex to serialize udf_relocate_blocks() execution

2011-01-06 17:03:56 +01:00

super.c

udf: Fortify loading of sparing table

2012-07-16 08:47:38 -07:00

symlink.c

udf: Replace bkl with the UDF_I(inode)->i_data_sem for protect udf_inode_info struct

2011-01-06 17:03:56 +01:00

truncate.c

udf: Convert UDF to new truncate calling sequence

2011-02-23 11:00:37 +01:00

udf_i.h

udf: Replace bkl with the UDF_I(inode)->i_data_sem for protect udf_inode_info struct

2011-01-06 17:03:56 +01:00

udf_sb.h

udf: Protect default inode credentials by rwlock

2011-01-06 17:03:55 +01:00

udfdecl.h

udf: Convert UDF to new truncate calling sequence

2011-02-23 11:00:37 +01:00

udfend.h

Remove struct typedefs from fs/udf/ecma_167.h et al.

2009-04-02 12:29:47 +02:00

udftime.c

Remove struct typedefs from fs/udf/ecma_167.h et al.

2009-04-02 12:29:47 +02:00

unicode.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00