Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 2616 insertions, 0 deletions

diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
new file mode 100644
index 00000000000..31840ba0b38
--- /dev/null
+++ b/fs/ntfs/inode.c
@@ -0,0 +1,2616 @@
+/**
+ * inode.c - NTFS kernel inode handling. Part of the Linux-NTFS project.
+ *
+ * Copyright (c) 2001-2004 Anton Altaparmakov
+ *
+ * This program/include file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program/include file is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (in the main directory of the Linux-NTFS
+ * distribution in the file COPYING); if not, write to the Free Software
+ * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/pagemap.h>
+#include <linux/buffer_head.h>
+#include <linux/smp_lock.h>
+#include <linux/quotaops.h>
+#include <linux/mount.h>
+
+#include "aops.h"
+#include "dir.h"
+#include "debug.h"
+#include "inode.h"
+#include "attrib.h"
+#include "malloc.h"
+#include "mft.h"
+#include "time.h"
+#include "ntfs.h"
+
+/**
+ * ntfs_test_inode - compare two (possibly fake) inodes for equality
+ * @vi:		vfs inode which to test
+ * @na:		ntfs attribute which is being tested with
+ *
+ * Compare the ntfs attribute embedded in the ntfs specific part of the vfs
+ * inode @vi for equality with the ntfs attribute @na.
+ *
+ * If searching for the normal file/directory inode, set @na->type to AT_UNUSED.
+ * @na->name and @na->name_len are then ignored.
+ *
+ * Return 1 if the attributes match and 0 if not.
+ *
+ * NOTE: This function runs with the inode_lock spin lock held so it is not
+ * allowed to sleep.
+ */
+int ntfs_test_inode(struct inode *vi, ntfs_attr *na)
+{
+	ntfs_inode *ni;
+
+	if (vi->i_ino != na->mft_no)
+		return 0;
+	ni = NTFS_I(vi);
+	/* If !NInoAttr(ni), @vi is a normal file or directory inode. */
+	if (likely(!NInoAttr(ni))) {
+		/* If not looking for a normal inode this is a mismatch. */
+		if (unlikely(na->type != AT_UNUSED))
+			return 0;
+	} else {
+		/* A fake inode describing an attribute. */
+		if (ni->type != na->type)
+			return 0;
+		if (ni->name_len != na->name_len)
+			return 0;
+		if (na->name_len && memcmp(ni->name, na->name,
+				na->name_len * sizeof(ntfschar)))
+			return 0;
+	}
+	/* Match! */
+	return 1;
+}
+
+/**
+ * ntfs_init_locked_inode - initialize an inode
+ * @vi:		vfs inode to initialize
+ * @na:		ntfs attribute which to initialize @vi to
+ *
+ * Initialize the vfs inode @vi with the values from the ntfs attribute @na in
+ * order to enable ntfs_test_inode() to do its work.
+ *
+ * If initializing the normal file/directory inode, set @na->type to AT_UNUSED.
+ * In that case, @na->name and @na->name_len should be set to NULL and 0,
+ * respectively. Although that is not strictly necessary as
+ * ntfs_read_inode_locked() will fill them in later.
+ *
+ * Return 0 on success and -errno on error.
+ *
+ * NOTE: This function runs with the inode_lock spin lock held so it is not
+ * allowed to sleep. (Hence the GFP_ATOMIC allocation.)
+ */
+static int ntfs_init_locked_inode(struct inode *vi, ntfs_attr *na)
+{
+	ntfs_inode *ni = NTFS_I(vi);
+
+	vi->i_ino = na->mft_no;
+
+	ni->type = na->type;
+	if (na->type == AT_INDEX_ALLOCATION)
+		NInoSetMstProtected(ni);
+
+	ni->name = na->name;
+	ni->name_len = na->name_len;
+
+	/* If initializing a normal inode, we are done. */
+	if (likely(na->type == AT_UNUSED)) {
+		BUG_ON(na->name);
+		BUG_ON(na->name_len);
+		return 0;
+	}
+
+	/* It is a fake inode. */
+	NInoSetAttr(ni);
+
+	/*
+	 * We have I30 global constant as an optimization as it is the name
+	 * in >99.9% of named attributes! The other <0.1% incur a GFP_ATOMIC
+	 * allocation but that is ok. And most attributes are unnamed anyway,
+	 * thus the fraction of named attributes with name != I30 is actually
+	 * absolutely tiny.
+	 */
+	if (na->name_len && na->name != I30) {
+		unsigned int i;
+
+		BUG_ON(!na->name);
+		i = na->name_len * sizeof(ntfschar);
+		ni->name = (ntfschar*)kmalloc(i + sizeof(ntfschar), GFP_ATOMIC);
+		if (!ni->name)
+			return -ENOMEM;
+		memcpy(ni->name, na->name, i);
+		ni->name[i] = 0;
+	}
+	return 0;
+}
+
+typedef int (*set_t)(struct inode *, void *);
+static int ntfs_read_locked_inode(struct inode *vi);
+static int ntfs_read_locked_attr_inode(struct inode *base_vi, struct inode *vi);
+static int ntfs_read_locked_index_inode(struct inode *base_vi,
+		struct inode *vi);
+
+/**
+ * ntfs_iget - obtain a struct inode corresponding to a specific normal inode
+ * @sb:		super block of mounted volume
+ * @mft_no:	mft record number / inode number to obtain
+ *
+ * Obtain the struct inode corresponding to a specific normal inode (i.e. a
+ * file or directory).
+ *
+ * If the inode is in the cache, it is just returned with an increased
+ * reference count. Otherwise, a new struct inode is allocated and initialized,
+ * and finally ntfs_read_locked_inode() is called to read in the inode and
+ * fill in the remainder of the inode structure.
+ *
+ * Return the struct inode on success. Check the return value with IS_ERR() and
+ * if true, the function failed and the error code is obtained from PTR_ERR().
+ */
+struct inode *ntfs_iget(struct super_block *sb, unsigned long mft_no)
+{
+	struct inode *vi;
+	ntfs_attr na;
+	int err;
+
+	na.mft_no = mft_no;
+	na.type = AT_UNUSED;
+	na.name = NULL;
+	na.name_len = 0;
+
+	vi = iget5_locked(sb, mft_no, (test_t)ntfs_test_inode,
+			(set_t)ntfs_init_locked_inode, &na);
+	if (!vi)
+		return ERR_PTR(-ENOMEM);
+
+	err = 0;
+
+	/* If this is a freshly allocated inode, need to read it now. */
+	if (vi->i_state & I_NEW) {
+		err = ntfs_read_locked_inode(vi);
+		unlock_new_inode(vi);
+	}
+	/*
+	 * There is no point in keeping bad inodes around if the failure was
+	 * due to ENOMEM. We want to be able to retry again later.
+	 */
+	if (err == -ENOMEM) {
+		iput(vi);
+		vi = ERR_PTR(err);
+	}
+	return vi;
+}
+
+/**
+ * ntfs_attr_iget - obtain a struct inode corresponding to an attribute
+ * @base_vi:	vfs base inode containing the attribute
+ * @type:	attribute type
+ * @name:	Unicode name of the attribute (NULL if unnamed)
+ * @name_len:	length of @name in Unicode characters (0 if unnamed)
+ *
+ * Obtain the (fake) struct inode corresponding to the attribute specified by
+ * @type, @name, and @name_len, which is present in the base mft record
+ * specified by the vfs inode @base_vi.
+ *
+ * If the attribute inode is in the cache, it is just returned with an
+ * increased reference count. Otherwise, a new struct inode is allocated and
+ * initialized, and finally ntfs_read_locked_attr_inode() is called to read the
+ * attribute and fill in the inode structure.
+ *
+ * Note, for index allocation attributes, you need to use ntfs_index_iget()
+ * instead of ntfs_attr_iget() as working with indices is a lot more complex.
+ *
+ * Return the struct inode of the attribute inode on success. Check the return
+ * value with IS_ERR() and if true, the function failed and the error code is
+ * obtained from PTR_ERR().
+ */
+struct inode *ntfs_attr_iget(struct inode *base_vi, ATTR_TYPE type,
+		ntfschar *name, u32 name_len)
+{
+	struct inode *vi;
+	ntfs_attr na;
+	int err;
+
+	/* Make sure no one calls ntfs_attr_iget() for indices. */
+	BUG_ON(type == AT_INDEX_ALLOCATION);
+
+	na.mft_no = base_vi->i_ino;
+	na.type = type;
+	na.name = name;
+	na.name_len = name_len;
+
+	vi = iget5_locked(base_vi->i_sb, na.mft_no, (test_t)ntfs_test_inode,
+			(set_t)ntfs_init_locked_inode, &na);
+	if (!vi)
+		return ERR_PTR(-ENOMEM);
+
+	err = 0;
+
+	/* If this is a freshly allocated inode, need to read it now. */
+	if (vi->i_state & I_NEW) {
+		err = ntfs_read_locked_attr_inode(base_vi, vi);
+		unlock_new_inode(vi);
+	}
+	/*
+	 * There is no point in keeping bad attribute inodes around. This also
+	 * simplifies things in that we never need to check for bad attribute
+	 * inodes elsewhere.
+	 */
+	if (err) {
+		iput(vi);
+		vi = ERR_PTR(err);
+	}
+	return vi;
+}
+
+/**
+ * ntfs_index_iget - obtain a struct inode corresponding to an index
+ * @base_vi:	vfs base inode containing the index related attributes
+ * @name:	Unicode name of the index
+ * @name_len:	length of @name in Unicode characters
+ *
+ * Obtain the (fake) struct inode corresponding to the index specified by @name
+ * and @name_len, which is present in the base mft record specified by the vfs
+ * inode @base_vi.
+ *
+ * If the index inode is in the cache, it is just returned with an increased
+ * reference count.  Otherwise, a new struct inode is allocated and
+ * initialized, and finally ntfs_read_locked_index_inode() is called to read
+ * the index related attributes and fill in the inode structure.
+ *
+ * Return the struct inode of the index inode on success. Check the return
+ * value with IS_ERR() and if true, the function failed and the error code is
+ * obtained from PTR_ERR().
+ */
+struct inode *ntfs_index_iget(struct inode *base_vi, ntfschar *name,
+		u32 name_len)
+{
+	struct inode *vi;
+	ntfs_attr na;
+	int err;
+
+	na.mft_no = base_vi->i_ino;
+	na.type = AT_INDEX_ALLOCATION;
+	na.name = name;
+	na.name_len = name_len;
+
+	vi = iget5_locked(base_vi->i_sb, na.mft_no, (test_t)ntfs_test_inode,
+			(set_t)ntfs_init_locked_inode, &na);
+	if (!vi)
+		return ERR_PTR(-ENOMEM);
+
+	err = 0;
+
+	/* If this is a freshly allocated inode, need to read it now. */
+	if (vi->i_state & I_NEW) {
+		err = ntfs_read_locked_index_inode(base_vi, vi);
+		unlock_new_inode(vi);
+	}
+	/*
+	 * There is no point in keeping bad index inodes around.  This also
+	 * simplifies things in that we never need to check for bad index
+	 * inodes elsewhere.
+	 */
+	if (err) {
+		iput(vi);
+		vi = ERR_PTR(err);
+	}
+	return vi;
+}
+
+struct inode *ntfs_alloc_big_inode(struct super_block *sb)
+{
+	ntfs_inode *ni;
+
+	ntfs_debug("Entering.");
+	ni = (ntfs_inode *)kmem_cache_alloc(ntfs_big_inode_cache,
+			SLAB_NOFS);
+	if (likely(ni != NULL)) {
+		ni->state = 0;
+		return VFS_I(ni);
+	}
+	ntfs_error(sb, "Allocation of NTFS big inode structure failed.");
+	return NULL;
+}
+
+void ntfs_destroy_big_inode(struct inode *inode)
+{
+	ntfs_inode *ni = NTFS_I(inode);
+
+	ntfs_debug("Entering.");
+	BUG_ON(ni->page);
+	if (!atomic_dec_and_test(&ni->count))
+		BUG();
+	kmem_cache_free(ntfs_big_inode_cache, NTFS_I(inode));
+}
+
+static inline ntfs_inode *ntfs_alloc_extent_inode(void)
+{
+	ntfs_inode *ni;
+
+	ntfs_debug("Entering.");
+	ni = (ntfs_inode *)kmem_cache_alloc(ntfs_inode_cache, SLAB_NOFS);
+	if (likely(ni != NULL)) {
+		ni->state = 0;
+		return ni;
+	}
+	ntfs_error(NULL, "Allocation of NTFS inode structure failed.");
+	return NULL;
+}
+
+static void ntfs_destroy_extent_inode(ntfs_inode *ni)
+{
+	ntfs_debug("Entering.");
+	BUG_ON(ni->page);
+	if (!atomic_dec_and_test(&ni->count))
+		BUG();
+	kmem_cache_free(ntfs_inode_cache, ni);
+}
+
+/**
+ * __ntfs_init_inode - initialize ntfs specific part of an inode
+ * @sb:		super block of mounted volume
+ * @ni:		freshly allocated ntfs inode which to initialize
+ *
+ * Initialize an ntfs inode to defaults.
+ *
+ * NOTE: ni->mft_no, ni->state, ni->type, ni->name, and ni->name_len are left
+ * untouched. Make sure to initialize them elsewhere.
+ *
+ * Return zero on success and -ENOMEM on error.
+ */
+void __ntfs_init_inode(struct super_block *sb, ntfs_inode *ni)
+{
+	ntfs_debug("Entering.");
+	ni->initialized_size = ni->allocated_size = 0;
+	ni->seq_no = 0;
+	atomic_set(&ni->count, 1);
+	ni->vol = NTFS_SB(sb);
+	ntfs_init_runlist(&ni->runlist);
+	init_MUTEX(&ni->mrec_lock);
+	ni->page = NULL;
+	ni->page_ofs = 0;
+	ni->attr_list_size = 0;
+	ni->attr_list = NULL;
+	ntfs_init_runlist(&ni->attr_list_rl);
+	ni->itype.index.bmp_ino = NULL;
+	ni->itype.index.block_size = 0;
+	ni->itype.index.vcn_size = 0;
+	ni->itype.index.collation_rule = 0;
+	ni->itype.index.block_size_bits = 0;
+	ni->itype.index.vcn_size_bits = 0;
+	init_MUTEX(&ni->extent_lock);
+	ni->nr_extents = 0;
+	ni->ext.base_ntfs_ino = NULL;
+}
+
+inline ntfs_inode *ntfs_new_extent_inode(struct super_block *sb,
+		unsigned long mft_no)
+{
+	ntfs_inode *ni = ntfs_alloc_extent_inode();
+
+	ntfs_debug("Entering.");
+	if (likely(ni != NULL)) {
+		__ntfs_init_inode(sb, ni);
+		ni->mft_no = mft_no;
+		ni->type = AT_UNUSED;
+		ni->name = NULL;
+		ni->name_len = 0;
+	}
+	return ni;
+}
+
+/**
+ * ntfs_is_extended_system_file - check if a file is in the $Extend directory
+ * @ctx:	initialized attribute search context
+ *
+ * Search all file name attributes in the inode described by the attribute
+ * search context @ctx and check if any of the names are in the $Extend system
+ * directory.
+ *
+ * Return values:
+ *	   1: file is in $Extend directory
+ *	   0: file is not in $Extend directory
+ *    -errno: failed to determine if the file is in the $Extend directory
+ */
+static int ntfs_is_extended_system_file(ntfs_attr_search_ctx *ctx)
+{
+	int nr_links, err;
+
+	/* Restart search. */
+	ntfs_attr_reinit_search_ctx(ctx);
+
+	/* Get number of hard links. */
+	nr_links = le16_to_cpu(ctx->mrec->link_count);
+
+	/* Loop through all hard links. */
+	while (!(err = ntfs_attr_lookup(AT_FILE_NAME, NULL, 0, 0, 0, NULL, 0,
+			ctx))) {
+		FILE_NAME_ATTR *file_name_attr;
+		ATTR_RECORD *attr = ctx->attr;
+		u8 *p, *p2;
+
+		nr_links--;
+		/*
+		 * Maximum sanity checking as we are called on an inode that
+		 * we suspect might be corrupt.
+		 */
+		p = (u8*)attr + le32_to_cpu(attr->length);
+		if (p < (u8*)ctx->mrec || (u8*)p > (u8*)ctx->mrec +
+				le32_to_cpu(ctx->mrec->bytes_in_use)) {
+err_corrupt_attr:
+			ntfs_error(ctx->ntfs_ino->vol->sb, "Corrupt file name "
+					"attribute. You should run chkdsk.");
+			return -EIO;
+		}
+		if (attr->non_resident) {
+			ntfs_error(ctx->ntfs_ino->vol->sb, "Non-resident file "
+					"name. You should run chkdsk.");
+			return -EIO;
+		}
+		if (attr->flags) {
+			ntfs_error(ctx->ntfs_ino->vol->sb, "File name with "
+					"invalid flags. You should run "
+					"chkdsk.");
+			return -EIO;
+		}
+		if (!(attr->data.resident.flags & RESIDENT_ATTR_IS_INDEXED)) {
+			ntfs_error(ctx->ntfs_ino->vol->sb, "Unindexed file "
+					"name. You should run chkdsk.");
+			return -EIO;
+		}
+		file_name_attr = (FILE_NAME_ATTR*)((u8*)attr +
+				le16_to_cpu(attr->data.resident.value_offset));
+		p2 = (u8*)attr + le32_to_cpu(attr->data.resident.value_length);
+		if (p2 < (u8*)attr || p2 > p)
+			goto err_corrupt_attr;
+		/* This attribute is ok, but is it in the $Extend directory? */
+		if (MREF_LE(file_name_attr->parent_directory) == FILE_Extend)
+			return 1;	/* YES, it's an extended system file. */
+	}
+	if (unlikely(err != -ENOENT))
+		return err;
+	if (unlikely(nr_links)) {
+		ntfs_error(ctx->ntfs_ino->vol->sb, "Inode hard link count "
+				"doesn't match number of name attributes. You "
+				"should run chkdsk.");
+		return -EIO;
+	}
+	return 0;	/* NO, it is not an extended system file. */
+}
+
+/**
+ * ntfs_read_locked_inode - read an inode from its device
+ * @vi:		inode to read
+ *
+ * ntfs_read_locked_inode() is called from ntfs_iget() to read the inode
+ * described by @vi into memory from the device.
+ *
+ * The only fields in @vi that we need to/can look at when the function is
+ * called are i_sb, pointing to the mounted device's super block, and i_ino,
+ * the number of the inode to load.
+ *
+ * ntfs_read_locked_inode() maps, pins and locks the mft record number i_ino
+ * for reading and sets up the necessary @vi fields as well as initializing
+ * the ntfs inode.
+ *
+ * Q: What locks are held when the function is called?
+ * A: i_state has I_LOCK set, hence the inode is locked, also
+ *    i_count is set to 1, so it is not going to go away
+ *    i_flags is set to 0 and we have no business touching it.  Only an ioctl()
+ *    is allowed to write to them. We should of course be honouring them but
+ *    we need to do that using the IS_* macros defined in include/linux/fs.h.
+ *    In any case ntfs_read_locked_inode() has nothing to do with i_flags.
+ *
+ * Return 0 on success and -errno on error.  In the error case, the inode will
+ * have had make_bad_inode() executed on it.
+ */
+static int ntfs_read_locked_inode(struct inode *vi)
+{
+	ntfs_volume *vol = NTFS_SB(vi->i_sb);
+	ntfs_inode *ni;
+	MFT_RECORD *m;
+	STANDARD_INFORMATION *si;
+	ntfs_attr_search_ctx *ctx;
+	int err = 0;
+
+	ntfs_debug("Entering for i_ino 0x%lx.", vi->i_ino);
+
+	/* Setup the generic vfs inode parts now. */
+
+	/* This is the optimal IO size (for stat), not the fs block size. */
+	vi->i_blksize = PAGE_CACHE_SIZE;
+	/*
+	 * This is for checking whether an inode has changed w.r.t. a file so
+	 * that the file can be updated if necessary (compare with f_version).
+	 */
+	vi->i_version = 1;
+
+	vi->i_uid = vol->uid;
+	vi->i_gid = vol->gid;
+	vi->i_mode = 0;
+
+	/*
+	 * Initialize the ntfs specific part of @vi special casing
+	 * FILE_MFT which we need to do at mount time.
+	 */
+	if (vi->i_ino != FILE_MFT)
+		ntfs_init_big_inode(vi);
+	ni = NTFS_I(vi);
+
+	m = map_mft_record(ni);
+	if (IS_ERR(m)) {
+		err = PTR_ERR(m);
+		goto err_out;
+	}
+	ctx = ntfs_attr_get_search_ctx(ni, m);
+	if (!ctx) {
+		err = -ENOMEM;
+		goto unm_err_out;
+	}
+
+	if (!(m->flags & MFT_RECORD_IN_USE)) {
+		ntfs_error(vi->i_sb, "Inode is not in use!");
+		goto unm_err_out;
+	}
+	if (m->base_mft_record) {
+		ntfs_error(vi->i_sb, "Inode is an extent inode!");
+		goto unm_err_out;
+	}
+
+	/* Transfer information from mft record into vfs and ntfs inodes. */
+	vi->i_generation = ni->seq_no = le16_to_cpu(m->sequence_number);
+
+	/*
+	 * FIXME: Keep in mind that link_count is two for files which have both
+	 * a long file name and a short file name as separate entries, so if
+	 * we are hiding short file names this will be too high. Either we need
+	 * to account for the short file names by subtracting them or we need
+	 * to make sure we delete files even though i_nlink is not zero which
+	 * might be tricky due to vfs interactions. Need to think about this
+	 * some more when implementing the unlink command.
+	 */
+	vi->i_nlink = le16_to_cpu(m->link_count);
+	/*
+	 * FIXME: Reparse points can have the directory bit set even though
+	 * they would be S_IFLNK. Need to deal with this further below when we
+	 * implement reparse points / symbolic links but it will do for now.
+	 * Also if not a directory, it could be something else, rather than
+	 * a regular file. But again, will do for now.
+	 */
+	/* Everyone gets all permissions. */
+	vi->i_mode |= S_IRWXUGO;
+	/* If read-only, noone gets write permissions. */
+	if (IS_RDONLY(vi))
+		vi->i_mode &= ~S_IWUGO;
+	if (m->flags & MFT_RECORD_IS_DIRECTORY) {
+		vi->i_mode |= S_IFDIR;
+		/*
+		 * Apply the directory permissions mask set in the mount
+		 * options.
+		 */
+		vi->i_mode &= ~vol->dmask;
+		/* Things break without this kludge! */
+		if (vi->i_nlink > 1)
+			vi->i_nlink = 1;
+	} else {
+		vi->i_mode |= S_IFREG;
+		/* Apply the file permissions mask set in the mount options. */
+		vi->i_mode &= ~vol->fmask;
+	}
+	/*
+	 * Find the standard information attribute in the mft record. At this
+	 * stage we haven't setup the attribute list stuff yet, so this could
+	 * in fact fail if the standard information is in an extent record, but
+	 * I don't think this actually ever happens.
+	 */
+	err = ntfs_attr_lookup(AT_STANDARD_INFORMATION, NULL, 0, 0, 0, NULL, 0,
+			ctx);
+	if (unlikely(err)) {
+		if (err == -ENOENT) {
+			/*
+			 * TODO: We should be performing a hot fix here (if the
+			 * recover mount option is set) by creating a new
+			 * attribute.
+			 */
+			ntfs_error(vi->i_sb, "$STANDARD_INFORMATION attribute "
+					"is missing.");
+		}
+		goto unm_err_out;
+	}
+	/* Get the standard information attribute value. */
+	si = (STANDARD_INFORMATION*)((char*)ctx->attr +
+			le16_to_cpu(ctx->attr->data.resident.value_offset));
+
+	/* Transfer information from the standard information into vi. */
+	/*
+	 * Note: The i_?times do not quite map perfectly onto the NTFS times,
+	 * but they are close enough, and in the end it doesn't really matter
+	 * that much...
+	 */
+	/*
+	 * mtime is the last change of the data within the file. Not changed
+	 * when only metadata is changed, e.g. a rename doesn't affect mtime.
+	 */
+	vi->i_mtime = ntfs2utc(si->last_data_change_time);
+	/*
+	 * ctime is the last change of the metadata of the file. This obviously
+	 * always changes, when mtime is changed. ctime can be changed on its
+	 * own, mtime is then not changed, e.g. when a file is renamed.
+	 */
+	vi->i_ctime = ntfs2utc(si->last_mft_change_time);
+	/*
+	 * Last access to the data within the file. Not changed during a rename
+	 * for example but changed whenever the file is written to.
+	 */
+	vi->i_atime = ntfs2utc(si->last_access_time);
+
+	/* Find the attribute list attribute if present. */
+	ntfs_attr_reinit_search_ctx(ctx);
+	err = ntfs_attr_lookup(AT_ATTRIBUTE_LIST, NULL, 0, 0, 0, NULL, 0, ctx);
+	if (err) {
+		if (unlikely(err != -ENOENT)) {
+			ntfs_error(vi->i_sb, "Failed to lookup attribute list "
+					"attribute.");
+			goto unm_err_out;
+		}
+	} else /* if (!err) */ {
+		if (vi->i_ino == FILE_MFT)
+			goto skip_attr_list_load;
+		ntfs_debug("Attribute list found in inode 0x%lx.", vi->i_ino);
+		NInoSetAttrList(ni);
+		if (ctx->attr->flags & ATTR_IS_ENCRYPTED ||
+				ctx->attr->flags & ATTR_COMPRESSION_MASK ||
+				ctx->attr->flags & ATTR_IS_SPARSE) {
+			ntfs_error(vi->i_sb, "Attribute list attribute is "
+					"compressed/encrypted/sparse.");
+			goto unm_err_out;
+		}
+		/* Now allocate memory for the attribute list. */
+		ni->attr_list_size = (u32)ntfs_attr_size(ctx->attr);
+		ni->attr_list = ntfs_malloc_nofs(ni->attr_list_size);
+		if (!ni->attr_list) {
+			ntfs_error(vi->i_sb, "Not enough memory to allocate "
+					"buffer for attribute list.");
+			err = -ENOMEM;
+			goto unm_err_out;
+		}
+		if (ctx->attr->non_resident) {
+			NInoSetAttrListNonResident(ni);
+			if (ctx->attr->data.non_resident.lowest_vcn) {
+				ntfs_error(vi->i_sb, "Attribute list has non "
+						"zero lowest_vcn.");
+				goto unm_err_out;
+			}
+			/*
+			 * Setup the runlist. No need for locking as we have
+			 * exclusive access to the inode at this time.
+			 */
+			ni->attr_list_rl.rl = ntfs_mapping_pairs_decompress(vol,
+					ctx->attr, NULL);
+			if (IS_ERR(ni->attr_list_rl.rl)) {
+				err = PTR_ERR(ni->attr_list_rl.rl);
+				ni->attr_list_rl.rl = NULL;
+				ntfs_error(vi->i_sb, "Mapping pairs "
+						"decompression failed.");
+				goto unm_err_out;
+			}
+			/* Now load the attribute list. */
+			if ((err = load_attribute_list(vol, &ni->attr_list_rl,
+					ni->attr_list, ni->attr_list_size,
+					sle64_to_cpu(ctx->attr->data.
+					non_resident.initialized_size)))) {
+				ntfs_error(vi->i_sb, "Failed to load "
+						"attribute list attribute.");
+				goto unm_err_out;
+			}
+		} else /* if (!ctx.attr->non_resident) */ {
+			if ((u8*)ctx->attr + le16_to_cpu(
+					ctx->attr->data.resident.value_offset) +
+					le32_to_cpu(
+					ctx->attr->data.resident.value_length) >
+					(u8*)ctx->mrec + vol->mft_record_size) {
+				ntfs_error(vi->i_sb, "Corrupt attribute list "
+						"in inode.");
+				goto unm_err_out;
+			}
+			/* Now copy the attribute list. */
+			memcpy(ni->attr_list, (u8*)ctx->attr + le16_to_cpu(
+					ctx->attr->data.resident.value_offset),
+					le32_to_cpu(
+					ctx->attr->data.resident.value_length));
+		}
+	}
+skip_attr_list_load:
+	/*
+	 * If an attribute list is present we now have the attribute list value
+	 * in ntfs_ino->attr_list and it is ntfs_ino->attr_list_size bytes.
+	 */
+	if (S_ISDIR(vi->i_mode)) {
+		struct inode *bvi;
+		ntfs_inode *bni;
+		INDEX_ROOT *ir;
+		char *ir_end, *index_end;
+
+		/* It is a directory, find index root attribute. */
+		ntfs_attr_reinit_search_ctx(ctx);
+		err = ntfs_attr_lookup(AT_INDEX_ROOT, I30, 4, CASE_SENSITIVE,
+				0, NULL, 0, ctx);
+		if (unlikely(err)) {
+			if (err == -ENOENT) {
+				// FIXME: File is corrupt! Hot-fix with empty
+				// index root attribute if recovery option is
+				// set.
+				ntfs_error(vi->i_sb, "$INDEX_ROOT attribute "
+						"is missing.");
+			}
+			goto unm_err_out;
+		}
+		/* Set up the state. */
+		if (unlikely(ctx->attr->non_resident)) {
+			ntfs_error(vol->sb, "$INDEX_ROOT attribute is not "
+					"resident.");
+			goto unm_err_out;
+		}
+		/* Ensure the attribute name is placed before the value. */
+		if (unlikely(ctx->attr->name_length &&
+				(le16_to_cpu(ctx->attr->name_offset) >=
+				le16_to_cpu(ctx->attr->data.resident.
+				value_offset)))) {
+			ntfs_error(vol->sb, "$INDEX_ROOT attribute name is "
+					"placed after the attribute value.");
+			goto unm_err_out;
+		}
+		/*
+		 * Compressed/encrypted index root just means that the newly
+		 * created files in that directory should be created compressed/
+		 * encrypted. However index root cannot be both compressed and
+		 * encrypted.
+		 */
+		if (ctx->attr->flags & ATTR_COMPRESSION_MASK)
+			NInoSetCompressed(ni);
+		if (ctx->attr->flags & ATTR_IS_ENCRYPTED) {
+			if (ctx->attr->flags & ATTR_COMPRESSION_MASK) {
+				ntfs_error(vi->i_sb, "Found encrypted and "
+						"compressed attribute.");
+				goto unm_err_out;
+			}
+			NInoSetEncrypted(ni);
+		}
+		if (ctx->attr->flags & ATTR_IS_SPARSE)
+			NInoSetSparse(ni);
+		ir = (INDEX_ROOT*)((char*)ctx->attr + le16_to_cpu(
+				ctx->attr->data.resident.value_offset));
+		ir_end = (char*)ir + le32_to_cpu(
+				ctx->attr->data.resident.value_length);
+		if (ir_end > (char*)ctx->mrec + vol->mft_record_size) {
+			ntfs_error(vi->i_sb, "$INDEX_ROOT attribute is "
+					"corrupt.");
+			goto unm_err_out;
+		}
+		index_end = (char*)&ir->index +
+				le32_to_cpu(ir->index.index_length);
+		if (index_end > ir_end) {
+			ntfs_error(vi->i_sb, "Directory index is corrupt.");
+			goto unm_err_out;
+		}
+		if (ir->type != AT_FILE_NAME) {
+			ntfs_error(vi->i_sb, "Indexed attribute is not "
+					"$FILE_NAME.");
+			goto unm_err_out;
+		}
+		if (ir->collation_rule != COLLATION_FILE_NAME) {
+			ntfs_error(vi->i_sb, "Index collation rule is not "
+					"COLLATION_FILE_NAME.");
+			goto unm_err_out;
+		}
+		ni->itype.index.collation_rule = ir->collation_rule;
+		ni->itype.index.block_size = le32_to_cpu(ir->index_block_size);
+		if (ni->itype.index.block_size &
+				(ni->itype.index.block_size - 1)) {
+			ntfs_error(vi->i_sb, "Index block size (%u) is not a "
+					"power of two.",
+					ni->itype.index.block_size);
+			goto unm_err_out;
+		}
+		if (ni->itype.index.block_size > PAGE_CACHE_SIZE) {
+			ntfs_error(vi->i_sb, "Index block size (%u) > "
+					"PAGE_CACHE_SIZE (%ld) is not "
+					"supported.  Sorry.",
+					ni->itype.index.block_size,
+					PAGE_CACHE_SIZE);
+			err = -EOPNOTSUPP;
+			goto unm_err_out;
+		}
+		if (ni->itype.index.block_size < NTFS_BLOCK_SIZE) {
+			ntfs_error(vi->i_sb, "Index block size (%u) < "
+					"NTFS_BLOCK_SIZE (%i) is not "
+					"supported.  Sorry.",
+					ni->itype.index.block_size,
+					NTFS_BLOCK_SIZE);
+			err = -EOPNOTSUPP;
+			goto unm_err_out;
+		}
+		ni->itype.index.block_size_bits =
+				ffs(ni->itype.index.block_size) - 1;
+		/* Determine the size of a vcn in the directory index. */
+		if (vol->cluster_size <= ni->itype.index.block_size) {
+			ni->itype.index.vcn_size = vol->cluster_size;
+			ni->itype.index.vcn_size_bits = vol->cluster_size_bits;
+		} else {
+			ni->itype.index.vcn_size = vol->sector_size;
+			ni->itype.index.vcn_size_bits = vol->sector_size_bits;
+		}
+
+		/* Setup the index allocation attribute, even if not present. */
+		NInoSetMstProtected(ni);
+		ni->type = AT_INDEX_ALLOCATION;
+		ni->name = I30;
+		ni->name_len = 4;
+
+		if (!(ir->index.flags & LARGE_INDEX)) {
+			/* No index allocation. */
+			vi->i_size = ni->initialized_size =
+					ni->allocated_size = 0;
+			/* We are done with the mft record, so we release it. */
+			ntfs_attr_put_search_ctx(ctx);
+			unmap_mft_record(ni);
+			m = NULL;
+			ctx = NULL;
+			goto skip_large_dir_stuff;
+		} /* LARGE_INDEX: Index allocation present. Setup state. */
+		NInoSetIndexAllocPresent(ni);
+		/* Find index allocation attribute. */
+		ntfs_attr_reinit_search_ctx(ctx);
+		err = ntfs_attr_lookup(AT_INDEX_ALLOCATION, I30, 4,
+				CASE_SENSITIVE, 0, NULL, 0, ctx);
+		if (unlikely(err)) {
+			if (err == -ENOENT)
+				ntfs_error(vi->i_sb, "$INDEX_ALLOCATION "
+						"attribute is not present but "
+						"$INDEX_ROOT indicated it is.");
+			else
+				ntfs_error(vi->i_sb, "Failed to lookup "
+						"$INDEX_ALLOCATION "
+						"attribute.");
+			goto unm_err_out;
+		}
+		if (!ctx->attr->non_resident) {
+			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute "
+					"is resident.");
+			goto unm_err_out;
+		}
+		/*
+		 * Ensure the attribute name is placed before the mapping pairs
+		 * array.
+		 */
+		if (unlikely(ctx->attr->name_length &&
+				(le16_to_cpu(ctx->attr->name_offset) >=
+				le16_to_cpu(ctx->attr->data.non_resident.
+				mapping_pairs_offset)))) {
+			ntfs_error(vol->sb, "$INDEX_ALLOCATION attribute name "
+					"is placed after the mapping pairs "
+					"array.");
+			goto unm_err_out;
+		}
+		if (ctx->attr->flags & ATTR_IS_ENCRYPTED) {
+			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute "
+					"is encrypted.");
+			goto unm_err_out;
+		}
+		if (ctx->attr->flags & ATTR_IS_SPARSE) {
+			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute "
+					"is sparse.");
+			goto unm_err_out;
+		}
+		if (ctx->attr->flags & ATTR_COMPRESSION_MASK) {
+			ntfs_error(vi->i_sb, "$INDEX_ALLOCATION attribute "
+					"is compressed.");
+			goto unm_err_out;
+		}
+		if (ctx->attr->data.non_resident.lowest_vcn) {
+			ntfs_error(vi->i_sb, "First extent of "
+					"$INDEX_ALLOCATION attribute has non "
+					"zero lowest_vcn.");
+			goto unm_err_out;
+		}
+		vi->i_size = sle64_to_cpu(
+				ctx->attr->data.non_resident.data_size);
+		ni->initialized_size = sle64_to_cpu(
+				ctx->attr->data.non_resident.initialized_size);
+		ni->allocated_size = sle64_to_cpu(
+				ctx->attr->data.non_resident.allocated_size);
+		/*
+		 * We are done with the mft record, so we release it. Otherwise
+		 * we would deadlock in ntfs_attr_iget().
+		 */
+		ntfs_attr_put_search_ctx(ctx);
+		unmap_mft_record(ni);
+		m = NULL;
+		ctx = NULL;
+		/* Get the index bitmap attribute inode. */
+		bvi = ntfs_attr_iget(vi, AT_BITMAP, I30, 4);
+		if (IS_ERR(bvi)) {
+			ntfs_error(vi->i_sb, "Failed to get bitmap attribute.");
+			err = PTR_ERR(bvi);
+			goto unm_err_out;
+		}
+		ni->itype.index.bmp_ino = bvi;
+		bni = NTFS_I(bvi);
+		if (NInoCompressed(bni) || NInoEncrypted(bni) ||
+				NInoSparse(bni)) {
+			ntfs_error(vi->i_sb, "$BITMAP attribute is compressed "
+					"and/or encrypted and/or sparse.");
+			goto unm_err_out;
+		}
+		/* Consistency check bitmap size vs. index allocation size. */
+		if ((bvi->i_size << 3) < (vi->i_size >>
+				ni->itype.index.block_size_bits)) {
+			ntfs_error(vi->i_sb, "Index bitmap too small (0x%llx) "
+					"for index allocation (0x%llx).",
+					bvi->i_size << 3, vi->i_size);
+			goto unm_err_out;
+		}
+skip_large_dir_stuff:
+		/* Setup the operations for this inode. */
+		vi->i_op = &ntfs_dir_inode_ops;
+		vi->i_fop = &ntfs_dir_ops;
+	} else {
+		/* It is a file. */
+		ntfs_attr_reinit_search_ctx(ctx);
+
+		/* Setup the data attribute, even if not present. */
+		ni->type = AT_DATA;
+		ni->name = NULL;
+		ni->name_len = 0;
+
+		/* Find first extent of the unnamed data attribute. */
+		err = ntfs_attr_lookup(AT_DATA, NULL, 0, 0, 0, NULL, 0, ctx);
+		if (unlikely(err)) {
+			vi->i_size = ni->initialized_size =
+					ni->allocated_size = 0;
+			if (err != -ENOENT) {
+				ntfs_error(vi->i_sb, "Failed to lookup $DATA "
+						"attribute.");
+				goto unm_err_out;
+			}
+			/*
+			 * FILE_Secure does not have an unnamed $DATA
+			 * attribute, so we special case it here.
+			 */
+			if (vi->i_ino == FILE_Secure)
+				goto no_data_attr_special_case;
+			/*
+			 * Most if not all the system files in the $Extend
+			 * system directory do not have unnamed data
+			 * attributes so we need to check if the parent
+			 * directory of the file is FILE_Extend and if it is
+			 * ignore this error. To do this we need to get the
+			 * name of this inode from the mft record as the name
+			 * contains the back reference to the parent directory.
+			 */
+			if (ntfs_is_extended_system_file(ctx) > 0)
+				goto no_data_attr_special_case;
+			// FIXME: File is corrupt! Hot-fix with empty data
+			// attribute if recovery option is set.
+			ntfs_error(vi->i_sb, "$DATA attribute is missing.");
+			goto unm_err_out;
+		}
+		/* Setup the state. */
+		if (ctx->attr->non_resident) {
+			NInoSetNonResident(ni);
+			if (ctx->attr->flags & ATTR_COMPRESSION_MASK) {
+				NInoSetCompressed(ni);
+				if (vol->cluster_size > 4096) {
+					ntfs_error(vi->i_sb, "Found "
+						"compressed data but "
+						"compression is disabled due "
+						"to cluster size (%i) > 4kiB.",
+						vol->cluster_size);
+					goto unm_err_out;
+				}
+				if ((ctx->attr->flags & ATTR_COMPRESSION_MASK)
+						!= ATTR_IS_COMPRESSED) {
+					ntfs_error(vi->i_sb, "Found "
+						"unknown compression method or "
+						"corrupt file.");
+					goto unm_err_out;
+				}
+				ni->itype.compressed.block_clusters = 1U <<
+						ctx->attr->data.non_resident.
+						compression_unit;
+				if (ctx->attr->data.non_resident.
+						compression_unit != 4) {
+					ntfs_error(vi->i_sb, "Found "
+						"nonstandard compression unit "
+						"(%u instead of 4).  Cannot "
+						"handle this.",
+						ctx->attr->data.non_resident.
+						compression_unit);
+					err = -EOPNOTSUPP;
+					goto unm_err_out;
+				}
+				ni->itype.compressed.block_size = 1U << (
+						ctx->attr->data.non_resident.
+						compression_unit +
+						vol->cluster_size_bits);
+				ni->itype.compressed.block_size_bits = ffs(
+					ni->itype.compressed.block_size) - 1;
+			}
+			if (ctx->attr->flags & ATTR_IS_ENCRYPTED) {
+				if (ctx->attr->flags &am