Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 150 insertions, 0 deletions

diff --git a/fs/ntfs/ntfs.h b/fs/ntfs/ntfs.h
new file mode 100644
index 0000000000..e81376ea91
--- /dev/null
+++ b/fs/ntfs/ntfs.h
@@ -0,0 +1,150 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ntfs.h - Defines for NTFS Linux kernel driver.
+ *
+ * Copyright (c) 2001-2014 Anton Altaparmakov and Tuxera Inc.
+ * Copyright (C) 2002 Richard Russon
+ */
+
+#ifndef _LINUX_NTFS_H
+#define _LINUX_NTFS_H
+
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/compiler.h>
+#include <linux/fs.h>
+#include <linux/nls.h>
+#include <linux/smp.h>
+#include <linux/pagemap.h>
+
+#include "types.h"
+#include "volume.h"
+#include "layout.h"
+
+typedef enum {
+	NTFS_BLOCK_SIZE		= 512,
+	NTFS_BLOCK_SIZE_BITS	= 9,
+	NTFS_SB_MAGIC		= 0x5346544e,	/* 'NTFS' */
+	NTFS_MAX_NAME_LEN	= 255,
+	NTFS_MAX_ATTR_NAME_LEN	= 255,
+	NTFS_MAX_CLUSTER_SIZE	= 64 * 1024,	/* 64kiB */
+	NTFS_MAX_PAGES_PER_CLUSTER = NTFS_MAX_CLUSTER_SIZE / PAGE_SIZE,
+} NTFS_CONSTANTS;
+
+/* Global variables. */
+
+/* Slab caches (from super.c). */
+extern struct kmem_cache *ntfs_name_cache;
+extern struct kmem_cache *ntfs_inode_cache;
+extern struct kmem_cache *ntfs_big_inode_cache;
+extern struct kmem_cache *ntfs_attr_ctx_cache;
+extern struct kmem_cache *ntfs_index_ctx_cache;
+
+/* The various operations structs defined throughout the driver files. */
+extern const struct address_space_operations ntfs_normal_aops;
+extern const struct address_space_operations ntfs_compressed_aops;
+extern const struct address_space_operations ntfs_mst_aops;
+
+extern const struct  file_operations ntfs_file_ops;
+extern const struct inode_operations ntfs_file_inode_ops;
+
+extern const struct  file_operations ntfs_dir_ops;
+extern const struct inode_operations ntfs_dir_inode_ops;
+
+extern const struct  file_operations ntfs_empty_file_ops;
+extern const struct inode_operations ntfs_empty_inode_ops;
+
+extern const struct export_operations ntfs_export_ops;
+
+/**
+ * NTFS_SB - return the ntfs volume given a vfs super block
+ * @sb:		VFS super block
+ *
+ * NTFS_SB() returns the ntfs volume associated with the VFS super block @sb.
+ */
+static inline ntfs_volume *NTFS_SB(struct super_block *sb)
+{
+	return sb->s_fs_info;
+}
+
+/* Declarations of functions and global variables. */
+
+/* From fs/ntfs/compress.c */
+extern int ntfs_read_compressed_block(struct page *page);
+extern int allocate_compression_buffers(void);
+extern void free_compression_buffers(void);
+
+/* From fs/ntfs/super.c */
+#define default_upcase_len 0x10000
+extern struct mutex ntfs_lock;
+
+typedef struct {
+	int val;
+	char *str;
+} option_t;
+extern const option_t on_errors_arr[];
+
+/* From fs/ntfs/mst.c */
+extern int post_read_mst_fixup(NTFS_RECORD *b, const u32 size);
+extern int pre_write_mst_fixup(NTFS_RECORD *b, const u32 size);
+extern void post_write_mst_fixup(NTFS_RECORD *b);
+
+/* From fs/ntfs/unistr.c */
+extern bool ntfs_are_names_equal(const ntfschar *s1, size_t s1_len,
+		const ntfschar *s2, size_t s2_len,
+		const IGNORE_CASE_BOOL ic,
+		const ntfschar *upcase, const u32 upcase_size);
+extern int ntfs_collate_names(const ntfschar *name1, const u32 name1_len,
+		const ntfschar *name2, const u32 name2_len,
+		const int err_val, const IGNORE_CASE_BOOL ic,
+		const ntfschar *upcase, const u32 upcase_len);
+extern int ntfs_ucsncmp(const ntfschar *s1, const ntfschar *s2, size_t n);
+extern int ntfs_ucsncasecmp(const ntfschar *s1, const ntfschar *s2, size_t n,
+		const ntfschar *upcase, const u32 upcase_size);
+extern void ntfs_upcase_name(ntfschar *name, u32 name_len,
+		const ntfschar *upcase, const u32 upcase_len);
+extern void ntfs_file_upcase_value(FILE_NAME_ATTR *file_name_attr,
+		const ntfschar *upcase, const u32 upcase_len);
+extern int ntfs_file_compare_values(FILE_NAME_ATTR *file_name_attr1,
+		FILE_NAME_ATTR *file_name_attr2,
+		const int err_val, const IGNORE_CASE_BOOL ic,
+		const ntfschar *upcase, const u32 upcase_len);
+extern int ntfs_nlstoucs(const ntfs_volume *vol, const char *ins,
+		const int ins_len, ntfschar **outs);
+extern int ntfs_ucstonls(const ntfs_volume *vol, const ntfschar *ins,
+		const int ins_len, unsigned char **outs, int outs_len);
+
+/* From fs/ntfs/upcase.c */
+extern ntfschar *generate_default_upcase(void);
+
+static inline int ntfs_ffs(int x)
+{
+	int r = 1;
+
+	if (!x)
+		return 0;
+	if (!(x & 0xffff)) {
+		x >>= 16;
+		r += 16;
+	}
+	if (!(x & 0xff)) {
+		x >>= 8;
+		r += 8;
+	}
+	if (!(x & 0xf)) {
+		x >>= 4;
+		r += 4;
+	}
+	if (!(x & 3)) {
+		x >>= 2;
+		r += 2;
+	}
+	if (!(x & 1)) {
+		x >>= 1;
+		r += 1;
+	}
+	return r;
+}
+
+#endif /* _LINUX_NTFS_H */