* inode.h - Defines for inode structures NTFS Linux kernel driver. Part of
* the Linux-NTFS project.
*
- * Copyright (c) 2001-2004 Anton Altaparmakov
+ * Copyright (c) 2001-2005 Anton Altaparmakov
* Copyright (c) 2002 Richard Russon
*
* This program/include file is free software; you can redistribute it and/or
#ifndef _LINUX_NTFS_INODE_H
#define _LINUX_NTFS_INODE_H
+#include <asm/atomic.h>
+
+#include <linux/fs.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/mutex.h>
#include <linux/seq_file.h>
#include "layout.h"
#include "volume.h"
+#include "types.h"
+#include "runlist.h"
+#include "debug.h"
typedef struct _ntfs_inode ntfs_inode;
* fields already provided in the VFS inode.
*/
struct _ntfs_inode {
+ rwlock_t size_lock; /* Lock serializing access to inode sizes. */
s64 initialized_size; /* Copy from the attribute record. */
s64 allocated_size; /* Copy from the attribute record. */
unsigned long state; /* NTFS specific flags describing this inode.
* name_len = 0 for files and name = I30 (global constant) and
* name_len = 4 for directories.
*/
- ATTR_TYPES type; /* Attribute type of this fake inode. */
+ ATTR_TYPE type; /* Attribute type of this fake inode. */
ntfschar *name; /* Attribute name of this fake inode. */
u32 name_len; /* Attribute name length of this fake inode. */
- run_list run_list; /* If state has the NI_NonResident bit set,
- the run list of the unnamed data attribute
+ runlist runlist; /* If state has the NI_NonResident bit set,
+ the runlist of the unnamed data attribute
(if a file) or of the index allocation
attribute (directory) or of the attribute
described by the fake inode (if NInoAttr()).
- If run_list.rl is NULL, the run list has not
+ If runlist.rl is NULL, the runlist has not
been read in yet or has been unmapped. If
NI_NonResident is clear, the attribute is
resident (file and fake inode) or there is
no $I30 index allocation attribute
(small directory). In the latter case
- run_list.rl is always NULL.*/
+ runlist.rl is always NULL.*/
/*
* The following fields are only valid for real inodes and extent
* inodes.
*/
- struct semaphore mrec_lock; /* Lock for serializing access to the
+ struct mutex mrec_lock; /* Lock for serializing access to the
mft record belonging to this inode. */
struct page *page; /* The page containing the mft record of the
inode. This should only be touched by the
*/
u32 attr_list_size; /* Length of attribute list value in bytes. */
u8 *attr_list; /* Attribute list value itself. */
- run_list attr_list_rl; /* Run list for the attribute list value. */
+ runlist attr_list_rl; /* Run list for the attribute list value. */
union {
- struct { /* It is a directory or $MFT. */
+ struct { /* It is a directory, $MFT, or an index inode. */
struct inode *bmp_ino; /* Attribute inode for the
- directory index $BITMAP. */
+ index $BITMAP. */
u32 block_size; /* Size of an index block. */
u32 vcn_size; /* Size of a vcn in this
- directory index. */
+ index. */
+ COLLATION_RULE collation_rule; /* The collation rule
+ for the index. */
u8 block_size_bits; /* Log2 of the above. */
u8 vcn_size_bits; /* Log2 of the above. */
} index;
- struct { /* It is a compressed file or fake inode. */
+ struct { /* It is a compressed/sparse file/attribute inode. */
s64 size; /* Copy of compressed_size from
$DATA. */
u32 block_size; /* Size of a compression block
u8 block_clusters; /* Number of clusters per cb. */
} compressed;
} itype;
- struct semaphore extent_lock; /* Lock for accessing/modifying the
+ struct mutex extent_lock; /* Lock for accessing/modifying the
below . */
s32 nr_extents; /* For a base mft record, the number of attached extent
inodes (0 if none), for extent records and for fake
NI_Sparse, /* 1: Unnamed data attr is sparse (f).
1: Create sparse files by default (d).
1: Attribute is sparse (a). */
+ NI_SparseDisabled, /* 1: May not create sparse regions. */
+ NI_TruncateFailed, /* 1: Last ntfs_truncate() call failed. */
} ntfs_inode_state_bits;
/*
NINO_FNS(Compressed)
NINO_FNS(Encrypted)
NINO_FNS(Sparse)
+NINO_FNS(SparseDisabled)
+NINO_FNS(TruncateFailed)
/*
* The full structure containing a ntfs_inode and a vfs struct inode. Used for
unsigned long mft_no;
ntfschar *name;
u32 name_len;
- ATTR_TYPES type;
+ ATTR_TYPE type;
} ntfs_attr;
typedef int (*test_t)(struct inode *, void *);
extern int ntfs_test_inode(struct inode *vi, ntfs_attr *na);
extern struct inode *ntfs_iget(struct super_block *sb, unsigned long mft_no);
-extern struct inode *ntfs_attr_iget(struct inode *base_vi, ATTR_TYPES type,
+extern struct inode *ntfs_attr_iget(struct inode *base_vi, ATTR_TYPE type,
ntfschar *name, u32 name_len);
+extern struct inode *ntfs_index_iget(struct inode *base_vi, ntfschar *name,
+ u32 name_len);
extern struct inode *ntfs_alloc_big_inode(struct super_block *sb);
extern void ntfs_destroy_big_inode(struct inode *inode);
extern void ntfs_clear_big_inode(struct inode *vi);
+extern void __ntfs_init_inode(struct super_block *sb, ntfs_inode *ni);
+
+static inline void ntfs_init_big_inode(struct inode *vi)
+{
+ ntfs_inode *ni = NTFS_I(vi);
+
+ ntfs_debug("Entering.");
+ __ntfs_init_inode(vi->i_sb, ni);
+ ni->mft_no = vi->i_ino;
+}
+
extern ntfs_inode *ntfs_new_extent_inode(struct super_block *sb,
unsigned long mft_no);
extern void ntfs_clear_extent_inode(ntfs_inode *ni);
#ifdef NTFS_RW
-extern void ntfs_truncate(struct inode *vi);
+extern int ntfs_truncate(struct inode *vi);
+extern void ntfs_truncate_vfs(struct inode *vi);
extern int ntfs_setattr(struct dentry *dentry, struct iattr *attr);
-extern void ntfs_write_inode(struct inode *vi, int sync);
+extern int ntfs_write_inode(struct inode *vi, int sync);
static inline void ntfs_commit_inode(struct inode *vi)
{
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