1 files changed, 0 insertions, 196 deletions
diff --git a/ANDROID_3.4.5/fs/isofs/export.c b/ANDROID_3.4.5/fs/isofs/export.c
deleted file mode 100644
index dd4687ff..00000000
--- a/ANDROID_3.4.5/fs/isofs/export.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * fs/isofs/export.c
- *
- *  (C) 2004  Paul Serice - The new inode scheme requires switching
- *                          from iget() to iget5_locked() which means
- *                          the NFS export operations have to be hand
- *                          coded because the default routines rely on
- *                          iget().
- *
- * The following files are helpful:
- *
- *     Documentation/filesystems/nfs/Exporting
- *     fs/exportfs/expfs.c.
- */
-
-#include "isofs.h"
-
-static struct dentry *
-isofs_export_iget(struct super_block *sb,
-		  unsigned long block,
-		  unsigned long offset,
-		  __u32 generation)
-{
-	struct inode *inode;
-
-	if (block == 0)
-		return ERR_PTR(-ESTALE);
-	inode = isofs_iget(sb, block, offset);
-	if (IS_ERR(inode))
-		return ERR_CAST(inode);
-	if (generation && inode->i_generation != generation) {
-		iput(inode);
-		return ERR_PTR(-ESTALE);
-	}
-	return d_obtain_alias(inode);
-}
-
-/* This function is surprisingly simple.  The trick is understanding
- * that "child" is always a directory. So, to find its parent, you
- * simply need to find its ".." entry, normalize its block and offset,
- * and return the underlying inode.  See the comments for
- * isofs_normalize_block_and_offset(). */
-static struct dentry *isofs_export_get_parent(struct dentry *child)
-{
-	unsigned long parent_block = 0;
-	unsigned long parent_offset = 0;
-	struct inode *child_inode = child->d_inode;
-	struct iso_inode_info *e_child_inode = ISOFS_I(child_inode);
-	struct iso_directory_record *de = NULL;
-	struct buffer_head * bh = NULL;
-	struct dentry *rv = NULL;
-
-	/* "child" must always be a directory. */
-	if (!S_ISDIR(child_inode->i_mode)) {
-		printk(KERN_ERR "isofs: isofs_export_get_parent(): "
-		       "child is not a directory!\n");
-		rv = ERR_PTR(-EACCES);
-		goto out;
-	}
-
-	/* It is an invariant that the directory offset is zero.  If
-	 * it is not zero, it means the directory failed to be
-	 * normalized for some reason. */
-	if (e_child_inode->i_iget5_offset != 0) {
-		printk(KERN_ERR "isofs: isofs_export_get_parent(): "
-		       "child directory not normalized!\n");
-		rv = ERR_PTR(-EACCES);
-		goto out;
-	}
-
-	/* The child inode has been normalized such that its
-	 * i_iget5_block value points to the "." entry.  Fortunately,
-	 * the ".." entry is located in the same block. */
-	parent_block = e_child_inode->i_iget5_block;
-
-	/* Get the block in question. */
-	bh = sb_bread(child_inode->i_sb, parent_block);
-	if (bh == NULL) {
-		rv = ERR_PTR(-EACCES);
-		goto out;
-	}
-
-	/* This is the "." entry. */
-	de = (struct iso_directory_record*)bh->b_data;
-
-	/* The ".." entry is always the second entry. */
-	parent_offset = (unsigned long)isonum_711(de->length);
-	de = (struct iso_directory_record*)(bh->b_data + parent_offset);
-
-	/* Verify it is in fact the ".." entry. */
-	if ((isonum_711(de->name_len) != 1) || (de->name[0] != 1)) {
-		printk(KERN_ERR "isofs: Unable to find the \"..\" "
-		       "directory for NFS.\n");
-		rv = ERR_PTR(-EACCES);
-		goto out;
-	}
-
-	/* Normalize */
-	isofs_normalize_block_and_offset(de, &parent_block, &parent_offset);
-
-	rv = d_obtain_alias(isofs_iget(child_inode->i_sb, parent_block,
-				     parent_offset));
- out:
-	if (bh)
-		brelse(bh);
-	return rv;
-}
-
-static int
-isofs_export_encode_fh(struct dentry *dentry,
-		       __u32 *fh32,
-		       int *max_len,
-		       int connectable)
-{
-	struct inode * inode = dentry->d_inode;
-	struct iso_inode_info * ei = ISOFS_I(inode);
-	int len = *max_len;
-	int type = 1;
-	__u16 *fh16 = (__u16*)fh32;
-
-	/*
-	 * WARNING: max_len is 5 for NFSv2.  Because of this
-	 * limitation, we use the lower 16 bits of fh32[1] to hold the
-	 * offset of the inode and the upper 16 bits of fh32[1] to
-	 * hold the offset of the parent.
-	 */
-	if (connectable && (len < 5)) {
-		*max_len = 5;
-		return 255;
-	} else if (len < 3) {
-		*max_len = 3;
-		return 255;
-	}
-
-	len = 3;
-	fh32[0] = ei->i_iget5_block;
- 	fh16[2] = (__u16)ei->i_iget5_offset;  /* fh16 [sic] */
-	fh32[2] = inode->i_generation;
-	if (connectable && !S_ISDIR(inode->i_mode)) {
-		struct inode *parent;
-		struct iso_inode_info *eparent;
-		spin_lock(&dentry->d_lock);
-		parent = dentry->d_parent->d_inode;
-		eparent = ISOFS_I(parent);
-		fh32[3] = eparent->i_iget5_block;
-		fh16[3] = (__u16)eparent->i_iget5_offset;  /* fh16 [sic] */
-		fh32[4] = parent->i_generation;
-		spin_unlock(&dentry->d_lock);
-		len = 5;
-		type = 2;
-	}
-	*max_len = len;
-	return type;
-}
-
-struct isofs_fid {
-	u32 block;
-	u16 offset;
-	u16 parent_offset;
-	u32 generation;
-	u32 parent_block;
-	u32 parent_generation;
-};
-
-static struct dentry *isofs_fh_to_dentry(struct super_block *sb,
-	struct fid *fid, int fh_len, int fh_type)
-{
-	struct isofs_fid *ifid = (struct isofs_fid *)fid;
-
-	if (fh_len < 3 || fh_type > 2)
-		return NULL;
-
-	return isofs_export_iget(sb, ifid->block, ifid->offset,
-			ifid->generation);
-}
-
-static struct dentry *isofs_fh_to_parent(struct super_block *sb,
-		struct fid *fid, int fh_len, int fh_type)
-{
-	struct isofs_fid *ifid = (struct isofs_fid *)fid;
-
-	if (fh_type != 2)
-		return NULL;
-
-	return isofs_export_iget(sb,
-			fh_len > 2 ? ifid->parent_block : 0,
-			ifid->parent_offset,
-			fh_len > 4 ? ifid->parent_generation : 0);
-}
-
-const struct export_operations isofs_export_ops = {
-	.encode_fh	= isofs_export_encode_fh,
-	.fh_to_dentry	= isofs_fh_to_dentry,
-	.fh_to_parent	= isofs_fh_to_parent,
-	.get_parent     = isofs_export_get_parent,
-};