1 files changed, 0 insertions, 542 deletions

diff --git a/ANDROID_3.4.5/fs/adfs/super.c b/ANDROID_3.4.5/fs/adfs/super.c
deleted file mode 100644
index 06fdcc93..00000000
--- a/ANDROID_3.4.5/fs/adfs/super.c
+++ /dev/null
@@ -1,542 +0,0 @@
-/*
- *  linux/fs/adfs/super.c
- *
- *  Copyright (C) 1997-1999 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/buffer_head.h>
-#include <linux/parser.h>
-#include <linux/mount.h>
-#include <linux/seq_file.h>
-#include <linux/slab.h>
-#include <linux/statfs.h>
-#include "adfs.h"
-#include "dir_f.h"
-#include "dir_fplus.h"
-
-#define ADFS_DEFAULT_OWNER_MASK S_IRWXU
-#define ADFS_DEFAULT_OTHER_MASK (S_IRWXG | S_IRWXO)
-
-void __adfs_error(struct super_block *sb, const char *function, const char *fmt, ...)
-{
-	char error_buf[128];
-	va_list args;
-
-	va_start(args, fmt);
-	vsnprintf(error_buf, sizeof(error_buf), fmt, args);
-	va_end(args);
-
-	printk(KERN_CRIT "ADFS-fs error (device %s)%s%s: %s\n",
-		sb->s_id, function ? ": " : "",
-		function ? function : "", error_buf);
-}
-
-static int adfs_checkdiscrecord(struct adfs_discrecord *dr)
-{
-	int i;
-
-	/* sector size must be 256, 512 or 1024 bytes */
-	if (dr->log2secsize != 8 &&
-	    dr->log2secsize != 9 &&
-	    dr->log2secsize != 10)
-		return 1;
-
-	/* idlen must be at least log2secsize + 3 */
-	if (dr->idlen < dr->log2secsize + 3)
-		return 1;
-
-	/* we cannot have such a large disc that we
-	 * are unable to represent sector offsets in
-	 * 32 bits.  This works out at 2.0 TB.
-	 */
-	if (le32_to_cpu(dr->disc_size_high) >> dr->log2secsize)
-		return 1;
-
-	/* idlen must be no greater than 19 v2 [1.0] */
-	if (dr->idlen > 19)
-		return 1;
-
-	/* reserved bytes should be zero */
-	for (i = 0; i < sizeof(dr->unused52); i++)
-		if (dr->unused52[i] != 0)
-			return 1;
-
-	return 0;
-}
-
-static unsigned char adfs_calczonecheck(struct super_block *sb, unsigned char *map)
-{
-	unsigned int v0, v1, v2, v3;
-	int i;
-
-	v0 = v1 = v2 = v3 = 0;
-	for (i = sb->s_blocksize - 4; i; i -= 4) {
-		v0 += map[i]     + (v3 >> 8);
-		v3 &= 0xff;
-		v1 += map[i + 1] + (v0 >> 8);
-		v0 &= 0xff;
-		v2 += map[i + 2] + (v1 >> 8);
-		v1 &= 0xff;
-		v3 += map[i + 3] + (v2 >> 8);
-		v2 &= 0xff;
-	}
-	v0 +=           v3 >> 8;
-	v1 += map[1] + (v0 >> 8);
-	v2 += map[2] + (v1 >> 8);
-	v3 += map[3] + (v2 >> 8);
-
-	return v0 ^ v1 ^ v2 ^ v3;
-}
-
-static int adfs_checkmap(struct super_block *sb, struct adfs_discmap *dm)
-{
-	unsigned char crosscheck = 0, zonecheck = 1;
-	int i;
-
-	for (i = 0; i < ADFS_SB(sb)->s_map_size; i++) {
-		unsigned char *map;
-
-		map = dm[i].dm_bh->b_data;
-
-		if (adfs_calczonecheck(sb, map) != map[0]) {
-			adfs_error(sb, "zone %d fails zonecheck", i);
-			zonecheck = 0;
-		}
-		crosscheck ^= map[3];
-	}
-	if (crosscheck != 0xff)
-		adfs_error(sb, "crosscheck != 0xff");
-	return crosscheck == 0xff && zonecheck;
-}
-
-static void adfs_put_super(struct super_block *sb)
-{
-	int i;
-	struct adfs_sb_info *asb = ADFS_SB(sb);
-
-	for (i = 0; i < asb->s_map_size; i++)
-		brelse(asb->s_map[i].dm_bh);
-	kfree(asb->s_map);
-	kfree(asb);
-	sb->s_fs_info = NULL;
-}
-
-static int adfs_show_options(struct seq_file *seq, struct dentry *root)
-{
-	struct adfs_sb_info *asb = ADFS_SB(root->d_sb);
-
-	if (asb->s_uid != 0)
-		seq_printf(seq, ",uid=%u", asb->s_uid);
-	if (asb->s_gid != 0)
-		seq_printf(seq, ",gid=%u", asb->s_gid);
-	if (asb->s_owner_mask != ADFS_DEFAULT_OWNER_MASK)
-		seq_printf(seq, ",ownmask=%o", asb->s_owner_mask);
-	if (asb->s_other_mask != ADFS_DEFAULT_OTHER_MASK)
-		seq_printf(seq, ",othmask=%o", asb->s_other_mask);
-	if (asb->s_ftsuffix != 0)
-		seq_printf(seq, ",ftsuffix=%u", asb->s_ftsuffix);
-
-	return 0;
-}
-
-enum {Opt_uid, Opt_gid, Opt_ownmask, Opt_othmask, Opt_ftsuffix, Opt_err};
-
-static const match_table_t tokens = {
-	{Opt_uid, "uid=%u"},
-	{Opt_gid, "gid=%u"},
-	{Opt_ownmask, "ownmask=%o"},
-	{Opt_othmask, "othmask=%o"},
-	{Opt_ftsuffix, "ftsuffix=%u"},
-	{Opt_err, NULL}
-};
-
-static int parse_options(struct super_block *sb, char *options)
-{
-	char *p;
-	struct adfs_sb_info *asb = ADFS_SB(sb);
-	int option;
-
-	if (!options)
-		return 0;
-
-	while ((p = strsep(&options, ",")) != NULL) {
-		substring_t args[MAX_OPT_ARGS];
-		int token;
-		if (!*p)
-			continue;
-
-		token = match_token(p, tokens, args);
-		switch (token) {
-		case Opt_uid:
-			if (match_int(args, &option))
-				return -EINVAL;
-			asb->s_uid = option;
-			break;
-		case Opt_gid:
-			if (match_int(args, &option))
-				return -EINVAL;
-			asb->s_gid = option;
-			break;
-		case Opt_ownmask:
-			if (match_octal(args, &option))
-				return -EINVAL;
-			asb->s_owner_mask = option;
-			break;
-		case Opt_othmask:
-			if (match_octal(args, &option))
-				return -EINVAL;
-			asb->s_other_mask = option;
-			break;
-		case Opt_ftsuffix:
-			if (match_int(args, &option))
-				return -EINVAL;
-			asb->s_ftsuffix = option;
-			break;
-		default:
-			printk("ADFS-fs: unrecognised mount option \"%s\" "
-					"or missing value\n", p);
-			return -EINVAL;
-		}
-	}
-	return 0;
-}
-
-static int adfs_remount(struct super_block *sb, int *flags, char *data)
-{
-	*flags |= MS_NODIRATIME;
-	return parse_options(sb, data);
-}
-
-static int adfs_statfs(struct dentry *dentry, struct kstatfs *buf)
-{
-	struct super_block *sb = dentry->d_sb;
-	struct adfs_sb_info *sbi = ADFS_SB(sb);
-	u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
-
-	buf->f_type    = ADFS_SUPER_MAGIC;
-	buf->f_namelen = sbi->s_namelen;
-	buf->f_bsize   = sb->s_blocksize;
-	buf->f_blocks  = sbi->s_size;
-	buf->f_files   = sbi->s_ids_per_zone * sbi->s_map_size;
-	buf->f_bavail  =
-	buf->f_bfree   = adfs_map_free(sb);
-	buf->f_ffree   = (long)(buf->f_bfree * buf->f_files) / (long)buf->f_blocks;
-	buf->f_fsid.val[0] = (u32)id;
-	buf->f_fsid.val[1] = (u32)(id >> 32);
-
-	return 0;
-}
-
-static struct kmem_cache *adfs_inode_cachep;
-
-static struct inode *adfs_alloc_inode(struct super_block *sb)
-{
-	struct adfs_inode_info *ei;
-	ei = (struct adfs_inode_info *)kmem_cache_alloc(adfs_inode_cachep, GFP_KERNEL);
-	if (!ei)
-		return NULL;
-	return &ei->vfs_inode;
-}
-
-static void adfs_i_callback(struct rcu_head *head)
-{
-	struct inode *inode = container_of(head, struct inode, i_rcu);
-	INIT_LIST_HEAD(&inode->i_dentry);
-	kmem_cache_free(adfs_inode_cachep, ADFS_I(inode));
-}
-
-static void adfs_destroy_inode(struct inode *inode)
-{
-	call_rcu(&inode->i_rcu, adfs_i_callback);
-}
-
-static void init_once(void *foo)
-{
-	struct adfs_inode_info *ei = (struct adfs_inode_info *) foo;
-
-	inode_init_once(&ei->vfs_inode);
-}
-
-static int init_inodecache(void)
-{
-	adfs_inode_cachep = kmem_cache_create("adfs_inode_cache",
-					     sizeof(struct adfs_inode_info),
-					     0, (SLAB_RECLAIM_ACCOUNT|
-						SLAB_MEM_SPREAD),
-					     init_once);
-	if (adfs_inode_cachep == NULL)
-		return -ENOMEM;
-	return 0;
-}
-
-static void destroy_inodecache(void)
-{
-	kmem_cache_destroy(adfs_inode_cachep);
-}
-
-static const struct super_operations adfs_sops = {
-	.alloc_inode	= adfs_alloc_inode,
-	.destroy_inode	= adfs_destroy_inode,
-	.write_inode	= adfs_write_inode,
-	.put_super	= adfs_put_super,
-	.statfs		= adfs_statfs,
-	.remount_fs	= adfs_remount,
-	.show_options	= adfs_show_options,
-};
-
-static struct adfs_discmap *adfs_read_map(struct super_block *sb, struct adfs_discrecord *dr)
-{
-	struct adfs_discmap *dm;
-	unsigned int map_addr, zone_size, nzones;
-	int i, zone;
-	struct adfs_sb_info *asb = ADFS_SB(sb);
-
-	nzones    = asb->s_map_size;
-	zone_size = (8 << dr->log2secsize) - le16_to_cpu(dr->zone_spare);
-	map_addr  = (nzones >> 1) * zone_size -
-		     ((nzones > 1) ? ADFS_DR_SIZE_BITS : 0);
-	map_addr  = signed_asl(map_addr, asb->s_map2blk);
-
-	asb->s_ids_per_zone = zone_size / (asb->s_idlen + 1);
-
-	dm = kmalloc(nzones * sizeof(*dm), GFP_KERNEL);
-	if (dm == NULL) {
-		adfs_error(sb, "not enough memory");
-		return NULL;
-	}
-
-	for (zone = 0; zone < nzones; zone++, map_addr++) {
-		dm[zone].dm_startbit = 0;
-		dm[zone].dm_endbit   = zone_size;
-		dm[zone].dm_startblk = zone * zone_size - ADFS_DR_SIZE_BITS;
-		dm[zone].dm_bh       = sb_bread(sb, map_addr);
-
-		if (!dm[zone].dm_bh) {
-			adfs_error(sb, "unable to read map");
-			goto error_free;
-		}
-	}
-
-	/* adjust the limits for the first and last map zones */
-	i = zone - 1;
-	dm[0].dm_startblk = 0;
-	dm[0].dm_startbit = ADFS_DR_SIZE_BITS;
-	dm[i].dm_endbit   = (le32_to_cpu(dr->disc_size_high) << (32 - dr->log2bpmb)) +
-			    (le32_to_cpu(dr->disc_size) >> dr->log2bpmb) +
-			    (ADFS_DR_SIZE_BITS - i * zone_size);
-
-	if (adfs_checkmap(sb, dm))
-		return dm;
-
-	adfs_error(sb, "map corrupted");
-
-error_free:
-	while (--zone >= 0)
-		brelse(dm[zone].dm_bh);
-
-	kfree(dm);
-	return NULL;
-}
-
-static inline unsigned long adfs_discsize(struct adfs_discrecord *dr, int block_bits)
-{
-	unsigned long discsize;
-
-	discsize  = le32_to_cpu(dr->disc_size_high) << (32 - block_bits);
-	discsize |= le32_to_cpu(dr->disc_size) >> block_bits;
-
-	return discsize;
-}
-
-static int adfs_fill_super(struct super_block *sb, void *data, int silent)
-{
-	struct adfs_discrecord *dr;
-	struct buffer_head *bh;
-	struct object_info root_obj;
-	unsigned char *b_data;
-	struct adfs_sb_info *asb;
-	struct inode *root;
-
-	sb->s_flags |= MS_NODIRATIME;
-
-	asb = kzalloc(sizeof(*asb), GFP_KERNEL);
-	if (!asb)
-		return -ENOMEM;
-	sb->s_fs_info = asb;
-
-	/* set default options */
-	asb->s_uid = 0;
-	asb->s_gid = 0;
-	asb->s_owner_mask = ADFS_DEFAULT_OWNER_MASK;
-	asb->s_other_mask = ADFS_DEFAULT_OTHER_MASK;
-	asb->s_ftsuffix = 0;
-
-	if (parse_options(sb, data))
-		goto error;
-
-	sb_set_blocksize(sb, BLOCK_SIZE);
-	if (!(bh = sb_bread(sb, ADFS_DISCRECORD / BLOCK_SIZE))) {
-		adfs_error(sb, "unable to read superblock");
-		goto error;
-	}
-
-	b_data = bh->b_data + (ADFS_DISCRECORD % BLOCK_SIZE);
-
-	if (adfs_checkbblk(b_data)) {
-		if (!silent)
-			printk("VFS: Can't find an adfs filesystem on dev "
-				"%s.\n", sb->s_id);
-		goto error_free_bh;
-	}
-
-	dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
-
-	/*
-	 * Do some sanity checks on the ADFS disc record
-	 */
-	if (adfs_checkdiscrecord(dr)) {
-		if (!silent)
-			printk("VPS: Can't find an adfs filesystem on dev "
-				"%s.\n", sb->s_id);
-		goto error_free_bh;
-	}
-
-	brelse(bh);
-	if (sb_set_blocksize(sb, 1 << dr->log2secsize)) {
-		bh = sb_bread(sb, ADFS_DISCRECORD / sb->s_blocksize);
-		if (!bh) {
-			adfs_error(sb, "couldn't read superblock on "
-				"2nd try.");
-			goto error;
-		}
-		b_data = bh->b_data + (ADFS_DISCRECORD % sb->s_blocksize);
-		if (adfs_checkbblk(b_data)) {
-			adfs_error(sb, "disc record mismatch, very weird!");
-			goto error_free_bh;
-		}
-		dr = (struct adfs_discrecord *)(b_data + ADFS_DR_OFFSET);
-	} else {
-		if (!silent)
-			printk(KERN_ERR "VFS: Unsupported blocksize on dev "
-				"%s.\n", sb->s_id);
-		goto error;
-	}
-
-	/*
-	 * blocksize on this device should now be set to the ADFS log2secsize
-	 */
-
-	sb->s_magic		= ADFS_SUPER_MAGIC;
-	asb->s_idlen		= dr->idlen;
-	asb->s_map_size		= dr->nzones | (dr->nzones_high << 8);
-	asb->s_map2blk		= dr->log2bpmb - dr->log2secsize;
-	asb->s_size    		= adfs_discsize(dr, sb->s_blocksize_bits);
-	asb->s_version 		= dr->format_version;
-	asb->s_log2sharesize	= dr->log2sharesize;
-	
-	asb->s_map = adfs_read_map(sb, dr);
-	if (!asb->s_map)
-		goto error_free_bh;
-
-	brelse(bh);
-
-	/*
-	 * set up enough so that we can read an inode
-	 */
-	sb->s_op = &adfs_sops;
-
-	dr = (struct adfs_discrecord *)(asb->s_map[0].dm_bh->b_data + 4);
-
-	root_obj.parent_id = root_obj.file_id = le32_to_cpu(dr->root);
-	root_obj.name_len  = 0;
-	/* Set root object date as 01 Jan 1987 00:00:00 */
-	root_obj.loadaddr  = 0xfff0003f;
-	root_obj.execaddr  = 0xec22c000;
-	root_obj.size	   = ADFS_NEWDIR_SIZE;
-	root_obj.attr	   = ADFS_NDA_DIRECTORY   | ADFS_NDA_OWNER_READ |
-			     ADFS_NDA_OWNER_WRITE | ADFS_NDA_PUBLIC_READ;
-	root_obj.filetype  = -1;
-
-	/*
-	 * If this is a F+ disk with variable length directories,
-	 * get the root_size from the disc record.
-	 */
-	if (asb->s_version) {
-		root_obj.size = le32_to_cpu(dr->root_size);
-		asb->s_dir     = &adfs_fplus_dir_ops;
-		asb->s_namelen = ADFS_FPLUS_NAME_LEN;
-	} else {
-		asb->s_dir     = &adfs_f_dir_ops;
-		asb->s_namelen = ADFS_F_NAME_LEN;
-	}
-	/*
-	 * ,xyz hex filetype suffix may be added by driver
-	 * to files that have valid RISC OS filetype
-	 */
-	if (asb->s_ftsuffix)
-		asb->s_namelen += 4;
-
-	sb->s_d_op = &adfs_dentry_operations;
-	root = adfs_iget(sb, &root_obj);
-	sb->s_root = d_make_root(root);
-	if (!sb->s_root) {
-		int i;
-		for (i = 0; i < asb->s_map_size; i++)
-			brelse(asb->s_map[i].dm_bh);
-		kfree(asb->s_map);
-		adfs_error(sb, "get root inode failed\n");
-		goto error;
-	}
-	return 0;
-
-error_free_bh:
-	brelse(bh);
-error:
-	sb->s_fs_info = NULL;
-	kfree(asb);
-	return -EINVAL;
-}
-
-static struct dentry *adfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data)
-{
-	return mount_bdev(fs_type, flags, dev_name, data, adfs_fill_super);
-}
-
-static struct file_system_type adfs_fs_type = {
-	.owner		= THIS_MODULE,
-	.name		= "adfs",
-	.mount		= adfs_mount,
-	.kill_sb	= kill_block_super,
-	.fs_flags	= FS_REQUIRES_DEV,
-};
-
-static int __init init_adfs_fs(void)
-{
-	int err = init_inodecache();
-	if (err)
-		goto out1;
-	err = register_filesystem(&adfs_fs_type);
-	if (err)
-		goto out;
-	return 0;
-out:
-	destroy_inodecache();
-out1:
-	return err;
-}
-
-static void __exit exit_adfs_fs(void)
-{
-	unregister_filesystem(&adfs_fs_type);
-	destroy_inodecache();
-}
-
-module_init(init_adfs_fs)
-module_exit(exit_adfs_fs)
-MODULE_LICENSE("GPL");