Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 500 deletions

diff --git a/ANDROID_3.4.5/fs/squashfs/super.c b/ANDROID_3.4.5/fs/squashfs/super.c
deleted file mode 100644
index 29cd014e..00000000
--- a/ANDROID_3.4.5/fs/squashfs/super.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/*
- * Squashfs - a compressed read only filesystem for Linux
- *
- * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008
- * Phillip Lougher <phillip@squashfs.org.uk>
- *
- * This program 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,
- * or (at your option) any later version.
- *
- * This program 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; if not, write to the Free Software
- * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * super.c
- */
-
-/*
- * This file implements code to read the superblock, read and initialise
- * in-memory structures at mount time, and all the VFS glue code to register
- * the filesystem.
- */
-
-#include <linux/fs.h>
-#include <linux/vfs.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <linux/pagemap.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/magic.h>
-#include <linux/xattr.h>
-
-#include "squashfs_fs.h"
-#include "squashfs_fs_sb.h"
-#include "squashfs_fs_i.h"
-#include "squashfs.h"
-#include "decompressor.h"
-#include "xattr.h"
-
-static struct file_system_type squashfs_fs_type;
-static const struct super_operations squashfs_super_ops;
-
-static const struct squashfs_decompressor *supported_squashfs_filesystem(short
-	major, short minor, short id)
-{
-	const struct squashfs_decompressor *decompressor;
-
-	if (major < SQUASHFS_MAJOR) {
-		ERROR("Major/Minor mismatch, older Squashfs %d.%d "
-			"filesystems are unsupported\n", major, minor);
-		return NULL;
-	} else if (major > SQUASHFS_MAJOR || minor > SQUASHFS_MINOR) {
-		ERROR("Major/Minor mismatch, trying to mount newer "
-			"%d.%d filesystem\n", major, minor);
-		ERROR("Please update your kernel\n");
-		return NULL;
-	}
-
-	decompressor = squashfs_lookup_decompressor(id);
-	if (!decompressor->supported) {
-		ERROR("Filesystem uses \"%s\" compression. This is not "
-			"supported\n", decompressor->name);
-		return NULL;
-	}
-
-	return decompressor;
-}
-
-
-static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
-{
-	struct squashfs_sb_info *msblk;
-	struct squashfs_super_block *sblk = NULL;
-	char b[BDEVNAME_SIZE];
-	struct inode *root;
-	long long root_inode;
-	unsigned short flags;
-	unsigned int fragments;
-	u64 lookup_table_start, xattr_id_table_start, next_table;
-	int err;
-
-	TRACE("Entered squashfs_fill_superblock\n");
-
-	sb->s_fs_info = kzalloc(sizeof(*msblk), GFP_KERNEL);
-	if (sb->s_fs_info == NULL) {
-		ERROR("Failed to allocate squashfs_sb_info\n");
-		return -ENOMEM;
-	}
-	msblk = sb->s_fs_info;
-
-	msblk->devblksize = sb_min_blocksize(sb, SQUASHFS_DEVBLK_SIZE);
-	msblk->devblksize_log2 = ffz(~msblk->devblksize);
-
-	mutex_init(&msblk->read_data_mutex);
-	mutex_init(&msblk->meta_index_mutex);
-
-	/*
-	 * msblk->bytes_used is checked in squashfs_read_table to ensure reads
-	 * are not beyond filesystem end.  But as we're using
-	 * squashfs_read_table here to read the superblock (including the value
-	 * of bytes_used) we need to set it to an initial sensible dummy value
-	 */
-	msblk->bytes_used = sizeof(*sblk);
-	sblk = squashfs_read_table(sb, SQUASHFS_START, sizeof(*sblk));
-
-	if (IS_ERR(sblk)) {
-		ERROR("unable to read squashfs_super_block\n");
-		err = PTR_ERR(sblk);
-		sblk = NULL;
-		goto failed_mount;
-	}
-
-	err = -EINVAL;
-
-	/* Check it is a SQUASHFS superblock */
-	sb->s_magic = le32_to_cpu(sblk->s_magic);
-	if (sb->s_magic != SQUASHFS_MAGIC) {
-		if (!silent)
-			ERROR("Can't find a SQUASHFS superblock on %s\n",
-						bdevname(sb->s_bdev, b));
-		goto failed_mount;
-	}
-
-	/* Check the MAJOR & MINOR versions and lookup compression type */
-	msblk->decompressor = supported_squashfs_filesystem(
-			le16_to_cpu(sblk->s_major),
-			le16_to_cpu(sblk->s_minor),
-			le16_to_cpu(sblk->compression));
-	if (msblk->decompressor == NULL)
-		goto failed_mount;
-
-	/* Check the filesystem does not extend beyond the end of the
-	   block device */
-	msblk->bytes_used = le64_to_cpu(sblk->bytes_used);
-	if (msblk->bytes_used < 0 || msblk->bytes_used >
-			i_size_read(sb->s_bdev->bd_inode))
-		goto failed_mount;
-
-	/* Check block size for sanity */
-	msblk->block_size = le32_to_cpu(sblk->block_size);
-	if (msblk->block_size > SQUASHFS_FILE_MAX_SIZE)
-		goto failed_mount;
-
-	/*
-	 * Check the system page size is not larger than the filesystem
-	 * block size (by default 128K).  This is currently not supported.
-	 */
-	if (PAGE_CACHE_SIZE > msblk->block_size) {
-		ERROR("Page size > filesystem block size (%d).  This is "
-			"currently not supported!\n", msblk->block_size);
-		goto failed_mount;
-	}
-
-	/* Check block log for sanity */
-	msblk->block_log = le16_to_cpu(sblk->block_log);
-	if (msblk->block_log > SQUASHFS_FILE_MAX_LOG)
-		goto failed_mount;
-
-	/* Check that block_size and block_log match */
-	if (msblk->block_size != (1 << msblk->block_log))
-		goto failed_mount;
-
-	/* Check the root inode for sanity */
-	root_inode = le64_to_cpu(sblk->root_inode);
-	if (SQUASHFS_INODE_OFFSET(root_inode) > SQUASHFS_METADATA_SIZE)
-		goto failed_mount;
-
-	msblk->inode_table = le64_to_cpu(sblk->inode_table_start);
-	msblk->directory_table = le64_to_cpu(sblk->directory_table_start);
-	msblk->inodes = le32_to_cpu(sblk->inodes);
-	flags = le16_to_cpu(sblk->flags);
-
-	TRACE("Found valid superblock on %s\n", bdevname(sb->s_bdev, b));
-	TRACE("Inodes are %scompressed\n", SQUASHFS_UNCOMPRESSED_INODES(flags)
-				? "un" : "");
-	TRACE("Data is %scompressed\n", SQUASHFS_UNCOMPRESSED_DATA(flags)
-				? "un" : "");
-	TRACE("Filesystem size %lld bytes\n", msblk->bytes_used);
-	TRACE("Block size %d\n", msblk->block_size);
-	TRACE("Number of inodes %d\n", msblk->inodes);
-	TRACE("Number of fragments %d\n", le32_to_cpu(sblk->fragments));
-	TRACE("Number of ids %d\n", le16_to_cpu(sblk->no_ids));
-	TRACE("sblk->inode_table_start %llx\n", msblk->inode_table);
-	TRACE("sblk->directory_table_start %llx\n", msblk->directory_table);
-	TRACE("sblk->fragment_table_start %llx\n",
-		(u64) le64_to_cpu(sblk->fragment_table_start));
-	TRACE("sblk->id_table_start %llx\n",
-		(u64) le64_to_cpu(sblk->id_table_start));
-
-	sb->s_maxbytes = MAX_LFS_FILESIZE;
-	sb->s_flags |= MS_RDONLY;
-	sb->s_op = &squashfs_super_ops;
-
-	err = -ENOMEM;
-
-	msblk->block_cache = squashfs_cache_init("metadata",
-			SQUASHFS_CACHED_BLKS, SQUASHFS_METADATA_SIZE);
-	if (msblk->block_cache == NULL)
-		goto failed_mount;
-
-	/* Allocate read_page block */
-	msblk->read_page = squashfs_cache_init("data", 1, msblk->block_size);
-	if (msblk->read_page == NULL) {
-		ERROR("Failed to allocate read_page block\n");
-		goto failed_mount;
-	}
-
-	msblk->stream = squashfs_decompressor_init(sb, flags);
-	if (IS_ERR(msblk->stream)) {
-		err = PTR_ERR(msblk->stream);
-		msblk->stream = NULL;
-		goto failed_mount;
-	}
-
-	/* Handle xattrs */
-	sb->s_xattr = squashfs_xattr_handlers;
-	xattr_id_table_start = le64_to_cpu(sblk->xattr_id_table_start);
-	if (xattr_id_table_start == SQUASHFS_INVALID_BLK) {
-		next_table = msblk->bytes_used;
-		goto allocate_id_index_table;
-	}
-
-	/* Allocate and read xattr id lookup table */
-	msblk->xattr_id_table = squashfs_read_xattr_id_table(sb,
-		xattr_id_table_start, &msblk->xattr_table, &msblk->xattr_ids);
-	if (IS_ERR(msblk->xattr_id_table)) {
-		ERROR("unable to read xattr id index table\n");
-		err = PTR_ERR(msblk->xattr_id_table);
-		msblk->xattr_id_table = NULL;
-		if (err != -ENOTSUPP)
-			goto failed_mount;
-	}
-	next_table = msblk->xattr_table;
-
-allocate_id_index_table:
-	/* Allocate and read id index table */
-	msblk->id_table = squashfs_read_id_index_table(sb,
-		le64_to_cpu(sblk->id_table_start), next_table,
-		le16_to_cpu(sblk->no_ids));
-	if (IS_ERR(msblk->id_table)) {
-		ERROR("unable to read id index table\n");
-		err = PTR_ERR(msblk->id_table);
-		msblk->id_table = NULL;
-		goto failed_mount;
-	}
-	next_table = le64_to_cpu(msblk->id_table[0]);
-
-	/* Handle inode lookup table */
-	lookup_table_start = le64_to_cpu(sblk->lookup_table_start);
-	if (lookup_table_start == SQUASHFS_INVALID_BLK)
-		goto handle_fragments;
-
-	/* Allocate and read inode lookup table */
-	msblk->inode_lookup_table = squashfs_read_inode_lookup_table(sb,
-		lookup_table_start, next_table, msblk->inodes);
-	if (IS_ERR(msblk->inode_lookup_table)) {
-		ERROR("unable to read inode lookup table\n");
-		err = PTR_ERR(msblk->inode_lookup_table);
-		msblk->inode_lookup_table = NULL;
-		goto failed_mount;
-	}
-	next_table = le64_to_cpu(msblk->inode_lookup_table[0]);
-
-	sb->s_export_op = &squashfs_export_ops;
-
-handle_fragments:
-	fragments = le32_to_cpu(sblk->fragments);
-	if (fragments == 0)
-		goto check_directory_table;
-
-	msblk->fragment_cache = squashfs_cache_init("fragment",
-		SQUASHFS_CACHED_FRAGMENTS, msblk->block_size);
-	if (msblk->fragment_cache == NULL) {
-		err = -ENOMEM;
-		goto failed_mount;
-	}
-
-	/* Allocate and read fragment index table */
-	msblk->fragment_index = squashfs_read_fragment_index_table(sb,
-		le64_to_cpu(sblk->fragment_table_start), next_table, fragments);
-	if (IS_ERR(msblk->fragment_index)) {
-		ERROR("unable to read fragment index table\n");
-		err = PTR_ERR(msblk->fragment_index);
-		msblk->fragment_index = NULL;
-		goto failed_mount;
-	}
-	next_table = le64_to_cpu(msblk->fragment_index[0]);
-
-check_directory_table:
-	/* Sanity check directory_table */
-	if (msblk->directory_table > next_table) {
-		err = -EINVAL;
-		goto failed_mount;
-	}
-
-	/* Sanity check inode_table */
-	if (msblk->inode_table >= msblk->directory_table) {
-		err = -EINVAL;
-		goto failed_mount;
-	}
-
-	/* allocate root */
-	root = new_inode(sb);
-	if (!root) {
-		err = -ENOMEM;
-		goto failed_mount;
-	}
-
-	err = squashfs_read_inode(root, root_inode);
-	if (err) {
-		make_bad_inode(root);
-		iput(root);
-		goto failed_mount;
-	}
-	insert_inode_hash(root);
-
-	sb->s_root = d_make_root(root);
-	if (sb->s_root == NULL) {
-		ERROR("Root inode create failed\n");
-		err = -ENOMEM;
-		goto failed_mount;
-	}
-
-	TRACE("Leaving squashfs_fill_super\n");
-	kfree(sblk);
-	return 0;
-
-failed_mount:
-	squashfs_cache_delete(msblk->block_cache);
-	squashfs_cache_delete(msblk->fragment_cache);
-	squashfs_cache_delete(msblk->read_page);
-	squashfs_decompressor_free(msblk, msblk->stream);
-	kfree(msblk->inode_lookup_table);
-	kfree(msblk->fragment_index);
-	kfree(msblk->id_table);
-	kfree(msblk->xattr_id_table);
-	kfree(sb->s_fs_info);
-	sb->s_fs_info = NULL;
-	kfree(sblk);
-	return err;
-}
-
-
-static int squashfs_statfs(struct dentry *dentry, struct kstatfs *buf)
-{
-	struct squashfs_sb_info *msblk = dentry->d_sb->s_fs_info;
-	u64 id = huge_encode_dev(dentry->d_sb->s_bdev->bd_dev);
-
-	TRACE("Entered squashfs_statfs\n");
-
-	buf->f_type = SQUASHFS_MAGIC;
-	buf->f_bsize = msblk->block_size;
-	buf->f_blocks = ((msblk->bytes_used - 1) >> msblk->block_log) + 1;
-	buf->f_bfree = buf->f_bavail = 0;
-	buf->f_files = msblk->inodes;
-	buf->f_ffree = 0;
-	buf->f_namelen = SQUASHFS_NAME_LEN;
-	buf->f_fsid.val[0] = (u32)id;
-	buf->f_fsid.val[1] = (u32)(id >> 32);
-
-	return 0;
-}
-
-
-static int squashfs_remount(struct super_block *sb, int *flags, char *data)
-{
-	*flags |= MS_RDONLY;
-	return 0;
-}
-
-
-static void squashfs_put_super(struct super_block *sb)
-{
-	if (sb->s_fs_info) {
-		struct squashfs_sb_info *sbi = sb->s_fs_info;
-		squashfs_cache_delete(sbi->block_cache);
-		squashfs_cache_delete(sbi->fragment_cache);
-		squashfs_cache_delete(sbi->read_page);
-		squashfs_decompressor_free(sbi, sbi->stream);
-		kfree(sbi->id_table);
-		kfree(sbi->fragment_index);
-		kfree(sbi->meta_index);
-		kfree(sbi->inode_lookup_table);
-		kfree(sbi->xattr_id_table);
-		kfree(sb->s_fs_info);
-		sb->s_fs_info = NULL;
-	}
-}
-
-
-static struct dentry *squashfs_mount(struct file_system_type *fs_type,
-				int flags, const char *dev_name, void *data)
-{
-	return mount_bdev(fs_type, flags, dev_name, data, squashfs_fill_super);
-}
-
-
-static struct kmem_cache *squashfs_inode_cachep;
-
-
-static void init_once(void *foo)
-{
-	struct squashfs_inode_info *ei = foo;
-
-	inode_init_once(&ei->vfs_inode);
-}
-
-
-static int __init init_inodecache(void)
-{
-	squashfs_inode_cachep = kmem_cache_create("squashfs_inode_cache",
-		sizeof(struct squashfs_inode_info), 0,
-		SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT, init_once);
-
-	return squashfs_inode_cachep ? 0 : -ENOMEM;
-}
-
-
-static void destroy_inodecache(void)
-{
-	kmem_cache_destroy(squashfs_inode_cachep);
-}
-
-
-static int __init init_squashfs_fs(void)
-{
-	int err = init_inodecache();
-
-	if (err)
-		return err;
-
-	err = register_filesystem(&squashfs_fs_type);
-	if (err) {
-		destroy_inodecache();
-		return err;
-	}
-
-	printk(KERN_INFO "squashfs: version 4.0 (2009/01/31) "
-		"Phillip Lougher\n");
-
-	return 0;
-}
-
-
-static void __exit exit_squashfs_fs(void)
-{
-	unregister_filesystem(&squashfs_fs_type);
-	destroy_inodecache();
-}
-
-
-static struct inode *squashfs_alloc_inode(struct super_block *sb)
-{
-	struct squashfs_inode_info *ei =
-		kmem_cache_alloc(squashfs_inode_cachep, GFP_KERNEL);
-
-	return ei ? &ei->vfs_inode : NULL;
-}
-
-
-static void squashfs_i_callback(struct rcu_head *head)
-{
-	struct inode *inode = container_of(head, struct inode, i_rcu);
-	kmem_cache_free(squashfs_inode_cachep, squashfs_i(inode));
-}
-
-static void squashfs_destroy_inode(struct inode *inode)
-{
-	call_rcu(&inode->i_rcu, squashfs_i_callback);
-}
-
-
-static struct file_system_type squashfs_fs_type = {
-	.owner = THIS_MODULE,
-	.name = "squashfs",
-	.mount = squashfs_mount,
-	.kill_sb = kill_block_super,
-	.fs_flags = FS_REQUIRES_DEV
-};
-
-static const struct super_operations squashfs_super_ops = {
-	.alloc_inode = squashfs_alloc_inode,
-	.destroy_inode = squashfs_destroy_inode,
-	.statfs = squashfs_statfs,
-	.put_super = squashfs_put_super,
-	.remount_fs = squashfs_remount
-};
-
-module_init(init_squashfs_fs);
-module_exit(exit_squashfs_fs);
-MODULE_DESCRIPTION("squashfs 4.0, a compressed read-only filesystem");
-MODULE_AUTHOR("Phillip Lougher <phillip@squashfs.org.uk>");
-MODULE_LICENSE("GPL");