linux-toradex.git/fs/udf/truncate.c, branch v4.19-rc4

udf: Fix 64-bit sign extension issues affecting blocks > 0x7FFFFFFF

2017-10-17T09:56:45+00:00

Large (> 1 TiB) UDF filesystems appear subject to several problems when
mounted on 64-bit systems:

* readdir() can fail on a directory containing File Identifiers residing
  above 0x7FFFFFFF. This manifests as a 'ls' command failing with EIO.

* FIBMAP on a file block located above 0x7FFFFFFF can return a negative
  value. The low 32 bits are correct, but applications that don't mask the
  high 32 bits of the result can perform incorrectly.

Per suggestion by Jan Kara, introduce a udf_pblk_t type for representation
of UDF block addresses. Ultimately, all driver functions that manipulate
UDF block addresses should use this type; for now, deployment is limited
to functions with actual or potential sign extension issues.

Changes to udf_readdir() and udf_block_map() address the issues noted
above; other changes address potential similar issues uncovered during
audit of the driver code.

Signed-off-by: Steven J. Magnani 
Signed-off-by: Jan Kara

udf: remove redundant buffer_head.h includes

2015-03-14T06:54:02+00:00

buffer_head.h was already included in udfdecl.h

Signed-off-by: Fabian Frederick 
Signed-off-by: Jan Kara

udf: Do not decrement i_blocks when freeing indirect extent block

2012-07-09T11:24:21+00:00

Indirect extent block is not accounted in i_blocks during allocation
thus we should not decrement i_blocks when we are freeing such block
during truncation.

Reported-by: Steve Nickel 
Signed-off-by: Jan Kara

udf: Convert printks to pr_

2011-10-31T22:43:52+00:00

Use the current logging styles.

Convert a few printks that should have been udf_warn and udf_err.
Coalesce formats.  Add #define pr_fmt.
Move an #include "udfdecls.h" above other includes in udftime.c
so pr_fmt works correctly.  Strip prefixes from conversions as appropriate.
Reorder logging definitions in udfdecl.h

Signed-off-by: Joe Perches 
Signed-off-by: Jan Kara

udf: Convert UDF to new truncate calling sequence

2011-02-23T10:00:37+00:00

Use new truncation sequence in UDF and fix up error handling in the
code.

Signed-off-by: Jan Kara

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

2009-04-02T10:29:47+00:00

Signed-off-by: Pekka Enberg 
Signed-off-by: Jan Kara

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

2009-04-02T10:29:47+00:00

Signed-off-by: Pekka Enberg 
Signed-off-by: Jan Kara

udf: truncate: create function for updating of Allocation Ext Descriptor

2008-04-17T12:22:28+00:00

Signed-off-by: Marcin Slusarz 
Cc: Jan Kara 
Signed-off-by: Jan Kara

udf: simple cleanup of truncate.c

2008-04-17T12:22:28+00:00

- remove one indentation level by little code reorganization
- convert "if (smth) BUG();" to "BUG_ON(smth);"

Signed-off-by: Marcin Slusarz 
Signed-off-by: Jan Kara

udf: move headers out include/linux/

2008-04-17T12:22:23+00:00

There's really no reason to keep udf headers in include/linux as they're
not used by anything but fs/udf/.

This patch merges most of include/linux/udf_fs_i.h into fs/udf/udf_i.h,
include/linux/udf_fs_sb.h into fs/udf/udf_sb.h and
include/linux/udf_fs.h into fs/udf/udfdecl.h.

The only thing remaining in include/linux/ is a stub of udf_fs_i.h
defining the four user-visible udf ioctls.  It's also moved from
unifdef-y to headers-y because it can be included unconditionally now.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jan Kara