License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:07:57 +08:00
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/* SPDX-License-Identifier: GPL-2.0 */
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2005-04-17 06:20:36 +08:00
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#ifndef __UDF_DECL_H
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#define __UDF_DECL_H
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2011-10-10 16:08:05 +08:00
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#define pr_fmt(fmt) "UDF-fs: " fmt
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2005-04-17 06:20:36 +08:00
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#include "ecma_167.h"
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#include "osta_udf.h"
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#include <linux/fs.h>
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#include <linux/types.h>
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#include <linux/buffer_head.h>
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2008-02-22 19:39:12 +08:00
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#include <linux/udf_fs_i.h>
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2005-04-17 06:20:36 +08:00
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2008-02-22 19:39:12 +08:00
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#include "udf_sb.h"
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2005-04-17 06:20:36 +08:00
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#include "udfend.h"
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2008-01-31 05:03:59 +08:00
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#include "udf_i.h"
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2005-04-17 06:20:36 +08:00
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2008-02-22 19:39:12 +08:00
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#define UDF_DEFAULT_PREALLOC_BLOCKS 8
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2011-11-03 01:05:22 +08:00
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extern __printf(3, 4) void _udf_err(struct super_block *sb,
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const char *function, const char *fmt, ...);
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2011-10-10 16:08:05 +08:00
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#define udf_err(sb, fmt, ...) \
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_udf_err(sb, __func__, fmt, ##__VA_ARGS__)
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2008-02-22 19:39:12 +08:00
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2011-11-03 01:05:22 +08:00
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extern __printf(3, 4) void _udf_warn(struct super_block *sb,
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const char *function, const char *fmt, ...);
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2011-10-10 16:08:04 +08:00
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#define udf_warn(sb, fmt, ...) \
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_udf_warn(sb, __func__, fmt, ##__VA_ARGS__)
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2011-10-10 16:08:02 +08:00
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2011-10-10 16:08:05 +08:00
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#define udf_info(fmt, ...) \
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pr_info("INFO " fmt, ##__VA_ARGS__)
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2011-10-10 16:08:02 +08:00
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2008-06-14 10:14:59 +08:00
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#undef UDFFS_DEBUG
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2008-02-22 19:39:12 +08:00
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#ifdef UDFFS_DEBUG
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2011-10-10 16:08:05 +08:00
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#define udf_debug(fmt, ...) \
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printk(KERN_DEBUG pr_fmt("%s:%d:%s: " fmt), \
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__FILE__, __LINE__, __func__, ##__VA_ARGS__)
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2008-02-22 19:39:12 +08:00
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#else
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2011-10-10 16:08:05 +08:00
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#define udf_debug(fmt, ...) \
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no_printk(fmt, ##__VA_ARGS__)
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2008-02-22 19:39:12 +08:00
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#endif
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2005-04-17 06:20:36 +08:00
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#define udf_fixed_to_variable(x) ( ( ( (x) >> 5 ) * 39 ) + ( (x) & 0x0000001F ) )
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#define udf_variable_to_fixed(x) ( ( ( (x) / 39 ) << 5 ) + ( (x) % 39 ) )
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#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
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#define UDF_EXTENT_FLAG_MASK 0xC0000000
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#define UDF_NAME_PAD 4
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2016-01-15 16:44:21 +08:00
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#define UDF_NAME_LEN 254
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#define UDF_NAME_LEN_CS0 255
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2005-04-17 06:20:36 +08:00
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2008-01-31 05:03:59 +08:00
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static inline size_t udf_file_entry_alloc_offset(struct inode *inode)
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{
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struct udf_inode_info *iinfo = UDF_I(inode);
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if (iinfo->i_use)
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return sizeof(struct unallocSpaceEntry);
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else if (iinfo->i_efe)
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return sizeof(struct extendedFileEntry) + iinfo->i_lenEAttr;
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else
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return sizeof(struct fileEntry) + iinfo->i_lenEAttr;
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}
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static inline size_t udf_ext0_offset(struct inode *inode)
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{
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if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
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return udf_file_entry_alloc_offset(inode);
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else
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return 0;
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}
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2005-04-17 06:20:36 +08:00
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2008-02-08 20:20:39 +08:00
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/* computes tag checksum */
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2008-10-15 18:28:03 +08:00
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u8 udf_tag_checksum(const struct tag *t);
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2008-02-08 20:20:39 +08:00
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2017-10-12 21:48:40 +08:00
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typedef uint32_t udf_pblk_t;
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2005-04-17 06:20:36 +08:00
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struct dentry;
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struct inode;
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struct task_struct;
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struct buffer_head;
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struct super_block;
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2008-04-30 23:22:06 +08:00
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extern const struct export_operations udf_export_ops;
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2007-02-12 16:55:40 +08:00
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extern const struct inode_operations udf_dir_inode_operations;
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2006-03-28 17:56:42 +08:00
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extern const struct file_operations udf_dir_operations;
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2007-02-12 16:55:40 +08:00
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extern const struct inode_operations udf_file_inode_operations;
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2006-03-28 17:56:42 +08:00
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extern const struct file_operations udf_file_operations;
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2017-01-02 21:30:31 +08:00
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extern const struct inode_operations udf_symlink_inode_operations;
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2006-06-28 19:26:44 +08:00
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extern const struct address_space_operations udf_aops;
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extern const struct address_space_operations udf_adinicb_aops;
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extern const struct address_space_operations udf_symlink_aops;
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2005-04-17 06:20:36 +08:00
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2007-07-19 16:47:43 +08:00
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struct udf_fileident_bh {
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2005-04-17 06:20:36 +08:00
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struct buffer_head *sbh;
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struct buffer_head *ebh;
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int soffset;
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int eoffset;
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};
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2007-07-19 16:47:43 +08:00
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struct udf_vds_record {
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2005-04-17 06:20:36 +08:00
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uint32_t block;
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uint32_t volDescSeqNum;
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};
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2007-07-19 16:47:43 +08:00
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struct generic_desc {
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2008-10-15 18:28:03 +08:00
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struct tag descTag;
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2007-07-21 19:37:18 +08:00
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__le32 volDescSeqNum;
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2005-04-17 06:20:36 +08:00
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};
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2007-05-08 15:35:14 +08:00
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2005-04-17 06:20:36 +08:00
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/* super.c */
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2010-11-11 07:46:18 +08:00
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2009-03-17 01:27:37 +08:00
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static inline void udf_updated_lvid(struct super_block *sb)
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{
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struct buffer_head *bh = UDF_SB(sb)->s_lvid_bh;
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BUG_ON(!bh);
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WARN_ON_ONCE(((struct logicalVolIntegrityDesc *)
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bh->b_data)->integrityType !=
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cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN));
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UDF_SB(sb)->s_lvid_dirty = 1;
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}
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2010-10-21 00:28:46 +08:00
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extern u64 lvid_get_unique_id(struct super_block *sb);
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2011-10-23 18:28:32 +08:00
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struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
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u32 meta_file_loc, u32 partition_num);
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2005-04-17 06:20:36 +08:00
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/* namei.c */
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2007-07-19 16:47:43 +08:00
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extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
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struct fileIdentDesc *, struct udf_fileident_bh *,
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uint8_t *, uint8_t *);
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2005-04-17 06:20:36 +08:00
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/* file.c */
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2010-05-05 21:15:39 +08:00
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extern long udf_ioctl(struct file *, unsigned int, unsigned long);
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2005-04-17 06:20:36 +08:00
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/* inode.c */
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2014-10-09 18:52:16 +08:00
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extern struct inode *__udf_iget(struct super_block *, struct kernel_lb_addr *,
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bool hidden_inode);
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static inline struct inode *udf_iget_special(struct super_block *sb,
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struct kernel_lb_addr *ino)
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{
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return __udf_iget(sb, ino, true);
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}
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static inline struct inode *udf_iget(struct super_block *sb,
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struct kernel_lb_addr *ino)
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{
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return __udf_iget(sb, ino, false);
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}
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2010-10-22 06:30:26 +08:00
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extern int udf_expand_file_adinicb(struct inode *);
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2017-10-12 21:48:40 +08:00
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extern struct buffer_head *udf_expand_dir_adinicb(struct inode *inode,
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udf_pblk_t *block, int *err);
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extern struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block,
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int create, int *err);
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2010-10-22 06:30:26 +08:00
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extern int udf_setsize(struct inode *, loff_t);
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2010-06-07 12:43:39 +08:00
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extern void udf_evict_inode(struct inode *);
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2010-03-05 16:21:37 +08:00
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extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
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2017-10-12 21:48:40 +08:00
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extern udf_pblk_t udf_block_map(struct inode *inode, sector_t block);
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2007-07-19 16:47:43 +08:00
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extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
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2008-10-15 18:28:03 +08:00
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struct kernel_lb_addr *, uint32_t *, sector_t *);
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2017-10-12 21:48:40 +08:00
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extern int udf_setup_indirect_aext(struct inode *inode, udf_pblk_t block,
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2015-12-23 21:21:13 +08:00
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struct extent_position *epos);
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extern int __udf_add_aext(struct inode *inode, struct extent_position *epos,
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struct kernel_lb_addr *eloc, uint32_t elen, int inc);
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2010-10-22 06:30:26 +08:00
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extern int udf_add_aext(struct inode *, struct extent_position *,
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struct kernel_lb_addr *, uint32_t, int);
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extern void udf_write_aext(struct inode *, struct extent_position *,
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2008-10-15 18:29:03 +08:00
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struct kernel_lb_addr *, uint32_t, int);
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2007-07-19 16:47:43 +08:00
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extern int8_t udf_delete_aext(struct inode *, struct extent_position,
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2008-10-15 18:28:03 +08:00
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struct kernel_lb_addr, uint32_t);
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2007-07-19 16:47:43 +08:00
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extern int8_t udf_next_aext(struct inode *, struct extent_position *,
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2008-10-15 18:28:03 +08:00
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struct kernel_lb_addr *, uint32_t *, int);
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2007-07-19 16:47:43 +08:00
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extern int8_t udf_current_aext(struct inode *, struct extent_position *,
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2008-10-15 18:28:03 +08:00
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struct kernel_lb_addr *, uint32_t *, int);
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2005-04-17 06:20:36 +08:00
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/* misc.c */
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2017-10-12 21:48:40 +08:00
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extern struct buffer_head *udf_tgetblk(struct super_block *sb,
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udf_pblk_t block);
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extern struct buffer_head *udf_tread(struct super_block *sb, udf_pblk_t block);
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2007-07-19 16:47:43 +08:00
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extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
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uint32_t, uint8_t);
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extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
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uint8_t);
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extern struct buffer_head *udf_read_tagged(struct super_block *, uint32_t,
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uint32_t, uint16_t *);
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extern struct buffer_head *udf_read_ptagged(struct super_block *,
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2008-10-15 18:29:03 +08:00
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struct kernel_lb_addr *, uint32_t,
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2007-07-19 16:47:43 +08:00
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uint16_t *);
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2005-04-17 06:20:36 +08:00
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extern void udf_update_tag(char *, int);
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extern void udf_new_tag(char *, uint16_t, uint16_t, uint16_t, uint32_t, int);
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/* lowlevel.c */
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extern unsigned int udf_get_last_session(struct super_block *);
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extern unsigned long udf_get_last_block(struct super_block *);
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/* partition.c */
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2007-07-19 16:47:43 +08:00
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extern uint32_t udf_get_pblock(struct super_block *, uint32_t, uint16_t,
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uint32_t);
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extern uint32_t udf_get_pblock_virt15(struct super_block *, uint32_t, uint16_t,
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uint32_t);
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extern uint32_t udf_get_pblock_virt20(struct super_block *, uint32_t, uint16_t,
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uint32_t);
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extern uint32_t udf_get_pblock_spar15(struct super_block *, uint32_t, uint16_t,
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uint32_t);
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2008-04-09 02:37:21 +08:00
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extern uint32_t udf_get_pblock_meta25(struct super_block *, uint32_t, uint16_t,
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uint32_t);
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2005-04-17 06:20:36 +08:00
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extern int udf_relocate_blocks(struct super_block *, long, long *);
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2008-10-15 18:29:03 +08:00
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static inline uint32_t
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udf_get_lb_pblock(struct super_block *sb, struct kernel_lb_addr *loc,
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uint32_t offset)
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{
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return udf_get_pblock(sb, loc->logicalBlockNum,
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loc->partitionReferenceNum, offset);
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}
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2005-04-17 06:20:36 +08:00
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/* unicode.c */
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2016-01-15 16:44:22 +08:00
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extern int udf_get_filename(struct super_block *, const uint8_t *, int,
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uint8_t *, int);
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2016-01-15 16:44:19 +08:00
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extern int udf_put_filename(struct super_block *, const uint8_t *, int,
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uint8_t *, int);
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udf: Fix conversion of 'dstring' fields to UTF8
Commit 9293fcfbc1812a22ad5ce1b542eb90c1bbe01be1
("udf: Remove struct ustr as non-needed intermediate storage"),
while getting rid of 'struct ustr', does not take any special care
of 'dstring' fields and effectively use fixed field length instead
of actual string length, encoded in the last byte of the field.
Also, commit 484a10f49387e4386bf2708532e75bf78ffea2cb
("udf: Merge linux specific translation into CS0 conversion function")
introduced checking of the length of the string being converted,
requiring proper alignment to number of bytes constituing each
character.
The UDF volume identifier is represented as a 32-bytes 'dstring',
and needs to be converted from CS0 to UTF8, while mounting UDF
filesystem. The changes in mentioned commits can in some cases
lead to incorrect handling of volume identifier:
- if the actual string in 'dstring' is of maximal length and
does not have zero bytes separating it from dstring encoded
length in last byte, that last byte may be included in conversion,
thus making incorrect resulting string;
- if the identifier is encoded with 2-bytes characters (compression
code is 16), the length of 31 bytes (32 bytes of field length minus
1 byte of compression code), taken as the string length, is reported
as an incorrect (unaligned) length, and the conversion fails, which
in its turn leads to volume mounting failure.
This patch introduces handling of 'dstring' encoded length field
in udf_CS0toUTF8 function, that is used in all and only cases
when 'dstring' fields are converted. Currently these cases are
processing of Volume Identifier and Volume Set Identifier fields.
The function is also renamed to udf_dstrCS0toUTF8 to distinctly
indicate that it handles 'dstring' input.
Signed-off-by: Andrew Gabbasov <andrew_gabbasov@mentor.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2016-04-25 19:19:38 +08:00
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extern int udf_dstrCS0toUTF8(uint8_t *, int, const uint8_t *, int);
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2005-04-17 06:20:36 +08:00
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/* ialloc.c */
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extern void udf_free_inode(struct inode *);
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2014-09-04 21:47:41 +08:00
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extern struct inode *udf_new_inode(struct inode *, umode_t);
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2005-04-17 06:20:36 +08:00
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/* truncate.c */
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2007-06-17 01:16:14 +08:00
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extern void udf_truncate_tail_extent(struct inode *);
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2005-04-17 06:20:36 +08:00
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extern void udf_discard_prealloc(struct inode *);
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extern void udf_truncate_extents(struct inode *);
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/* balloc.c */
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2007-07-19 16:47:43 +08:00
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extern void udf_free_blocks(struct super_block *, struct inode *,
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2008-10-15 18:29:03 +08:00
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struct kernel_lb_addr *, uint32_t, uint32_t);
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2007-07-19 16:47:43 +08:00
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extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
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uint32_t, uint32_t);
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2017-10-12 21:48:40 +08:00
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extern udf_pblk_t udf_new_block(struct super_block *sb, struct inode *inode,
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uint16_t partition, uint32_t goal, int *err);
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2005-04-17 06:20:36 +08:00
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/* directory.c */
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2007-07-19 16:47:43 +08:00
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extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
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struct udf_fileident_bh *,
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struct fileIdentDesc *,
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struct extent_position *,
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2008-10-15 18:28:03 +08:00
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struct kernel_lb_addr *, uint32_t *,
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2007-07-19 16:47:43 +08:00
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sector_t *);
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extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
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int *offset);
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2008-10-15 18:28:03 +08:00
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extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
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extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);
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2005-04-17 06:20:36 +08:00
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/* udftime.c */
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2008-02-10 18:25:31 +08:00
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extern struct timespec *udf_disk_stamp_to_time(struct timespec *dest,
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2008-10-15 18:28:03 +08:00
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struct timestamp src);
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extern struct timestamp *udf_time_to_disk_stamp(struct timestamp *dest, struct timespec src);
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2005-04-17 06:20:36 +08:00
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2007-07-19 16:47:43 +08:00
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#endif /* __UDF_DECL_H */
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