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, 583 deletions

diff --git a/ANDROID_3.4.5/fs/omfs/inode.c b/ANDROID_3.4.5/fs/omfs/inode.c
deleted file mode 100644
index dbc84222..00000000
--- a/ANDROID_3.4.5/fs/omfs/inode.c
+++ /dev/null
@@ -1,583 +0,0 @@
-/*
- * Optimized MPEG FS - inode and super operations.
- * Copyright (C) 2006 Bob Copeland <me@bobcopeland.com>
- * Released under GPL v2.
- */
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/fs.h>
-#include <linux/vfs.h>
-#include <linux/parser.h>
-#include <linux/buffer_head.h>
-#include <linux/vmalloc.h>
-#include <linux/writeback.h>
-#include <linux/crc-itu-t.h>
-#include "omfs.h"
-
-MODULE_AUTHOR("Bob Copeland <me@bobcopeland.com>");
-MODULE_DESCRIPTION("OMFS (ReplayTV/Karma) Filesystem for Linux");
-MODULE_LICENSE("GPL");
-
-struct buffer_head *omfs_bread(struct super_block *sb, sector_t block)
-{
-	struct omfs_sb_info *sbi = OMFS_SB(sb);
-	if (block >= sbi->s_num_blocks)
-		return NULL;
-
-	return sb_bread(sb, clus_to_blk(sbi, block));
-}
-
-struct inode *omfs_new_inode(struct inode *dir, umode_t mode)
-{
-	struct inode *inode;
-	u64 new_block;
-	int err;
-	int len;
-	struct omfs_sb_info *sbi = OMFS_SB(dir->i_sb);
-
-	inode = new_inode(dir->i_sb);
-	if (!inode)
-		return ERR_PTR(-ENOMEM);
-
-	err = omfs_allocate_range(dir->i_sb, sbi->s_mirrors, sbi->s_mirrors,
-			&new_block, &len);
-	if (err)
-		goto fail;
-
-	inode->i_ino = new_block;
-	inode_init_owner(inode, NULL, mode);
-	inode->i_mapping->a_ops = &omfs_aops;
-
-	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
-	switch (mode & S_IFMT) {
-	case S_IFDIR:
-		inode->i_op = &omfs_dir_inops;
-		inode->i_fop = &omfs_dir_operations;
-		inode->i_size = sbi->s_sys_blocksize;
-		inc_nlink(inode);
-		break;
-	case S_IFREG:
-		inode->i_op = &omfs_file_inops;
-		inode->i_fop = &omfs_file_operations;
-		inode->i_size = 0;
-		break;
-	}
-
-	insert_inode_hash(inode);
-	mark_inode_dirty(inode);
-	return inode;
-fail:
-	make_bad_inode(inode);
-	iput(inode);
-	return ERR_PTR(err);
-}
-
-/*
- * Update the header checksums for a dirty inode based on its contents.
- * Caller is expected to hold the buffer head underlying oi and mark it
- * dirty.
- */
-static void omfs_update_checksums(struct omfs_inode *oi)
-{
-	int xor, i, ofs = 0, count;
-	u16 crc = 0;
-	unsigned char *ptr = (unsigned char *) oi;
-
-	count = be32_to_cpu(oi->i_head.h_body_size);
-	ofs = sizeof(struct omfs_header);
-
-	crc = crc_itu_t(crc, ptr + ofs, count);
-	oi->i_head.h_crc = cpu_to_be16(crc);
-
-	xor = ptr[0];
-	for (i = 1; i < OMFS_XOR_COUNT; i++)
-		xor ^= ptr[i];
-
-	oi->i_head.h_check_xor = xor;
-}
-
-static int __omfs_write_inode(struct inode *inode, int wait)
-{
-	struct omfs_inode *oi;
-	struct omfs_sb_info *sbi = OMFS_SB(inode->i_sb);
-	struct buffer_head *bh, *bh2;
-	u64 ctime;
-	int i;
-	int ret = -EIO;
-	int sync_failed = 0;
-
-	/* get current inode since we may have written sibling ptrs etc. */
-	bh = omfs_bread(inode->i_sb, inode->i_ino);
-	if (!bh)
-		goto out;
-
-	oi = (struct omfs_inode *) bh->b_data;
-
-	oi->i_head.h_self = cpu_to_be64(inode->i_ino);
-	if (S_ISDIR(inode->i_mode))
-		oi->i_type = OMFS_DIR;
-	else if (S_ISREG(inode->i_mode))
-		oi->i_type = OMFS_FILE;
-	else {
-		printk(KERN_WARNING "omfs: unknown file type: %d\n",
-			inode->i_mode);
-		goto out_brelse;
-	}
-
-	oi->i_head.h_body_size = cpu_to_be32(sbi->s_sys_blocksize -
-		sizeof(struct omfs_header));
-	oi->i_head.h_version = 1;
-	oi->i_head.h_type = OMFS_INODE_NORMAL;
-	oi->i_head.h_magic = OMFS_IMAGIC;
-	oi->i_size = cpu_to_be64(inode->i_size);
-
-	ctime = inode->i_ctime.tv_sec * 1000LL +
-		((inode->i_ctime.tv_nsec + 999)/1000);
-	oi->i_ctime = cpu_to_be64(ctime);
-
-	omfs_update_checksums(oi);
-
-	mark_buffer_dirty(bh);
-	if (wait) {
-		sync_dirty_buffer(bh);
-		if (buffer_req(bh) && !buffer_uptodate(bh))
-			sync_failed = 1;
-	}
-
-	/* if mirroring writes, copy to next fsblock */
-	for (i = 1; i < sbi->s_mirrors; i++) {
-		bh2 = omfs_bread(inode->i_sb, inode->i_ino + i);
-		if (!bh2)
-			goto out_brelse;
-
-		memcpy(bh2->b_data, bh->b_data, bh->b_size);
-		mark_buffer_dirty(bh2);
-		if (wait) {
-			sync_dirty_buffer(bh2);
-			if (buffer_req(bh2) && !buffer_uptodate(bh2))
-				sync_failed = 1;
-		}
-		brelse(bh2);
-	}
-	ret = (sync_failed) ? -EIO : 0;
-out_brelse:
-	brelse(bh);
-out:
-	return ret;
-}
-
-static int omfs_write_inode(struct inode *inode, struct writeback_control *wbc)
-{
-	return __omfs_write_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
-}
-
-int omfs_sync_inode(struct inode *inode)
-{
-	return __omfs_write_inode(inode, 1);
-}
-
-/*
- * called when an entry is deleted, need to clear the bits in the
- * bitmaps.
- */
-static void omfs_evict_inode(struct inode *inode)
-{
-	truncate_inode_pages(&inode->i_data, 0);
-	end_writeback(inode);
-
-	if (inode->i_nlink)
-		return;
-
-	if (S_ISREG(inode->i_mode)) {
-		inode->i_size = 0;
-		omfs_shrink_inode(inode);
-	}
-
-	omfs_clear_range(inode->i_sb, inode->i_ino, 2);
-}
-
-struct inode *omfs_iget(struct super_block *sb, ino_t ino)
-{
-	struct omfs_sb_info *sbi = OMFS_SB(sb);
-	struct omfs_inode *oi;
-	struct buffer_head *bh;
-	u64 ctime;
-	unsigned long nsecs;
-	struct inode *inode;
-
-	inode = iget_locked(sb, ino);
-	if (!inode)
-		return ERR_PTR(-ENOMEM);
-	if (!(inode->i_state & I_NEW))
-		return inode;
-
-	bh = omfs_bread(inode->i_sb, ino);
-	if (!bh)
-		goto iget_failed;
-
-	oi = (struct omfs_inode *)bh->b_data;
-
-	/* check self */
-	if (ino != be64_to_cpu(oi->i_head.h_self))
-		goto fail_bh;
-
-	inode->i_uid = sbi->s_uid;
-	inode->i_gid = sbi->s_gid;
-
-	ctime = be64_to_cpu(oi->i_ctime);
-	nsecs = do_div(ctime, 1000) * 1000L;
-
-	inode->i_atime.tv_sec = ctime;
-	inode->i_mtime.tv_sec = ctime;
-	inode->i_ctime.tv_sec = ctime;
-	inode->i_atime.tv_nsec = nsecs;
-	inode->i_mtime.tv_nsec = nsecs;
-	inode->i_ctime.tv_nsec = nsecs;
-
-	inode->i_mapping->a_ops = &omfs_aops;
-
-	switch (oi->i_type) {
-	case OMFS_DIR:
-		inode->i_mode = S_IFDIR | (S_IRWXUGO & ~sbi->s_dmask);
-		inode->i_op = &omfs_dir_inops;
-		inode->i_fop = &omfs_dir_operations;
-		inode->i_size = sbi->s_sys_blocksize;
-		inc_nlink(inode);
-		break;
-	case OMFS_FILE:
-		inode->i_mode = S_IFREG | (S_IRWXUGO & ~sbi->s_fmask);
-		inode->i_fop = &omfs_file_operations;
-		inode->i_size = be64_to_cpu(oi->i_size);
-		break;
-	}
-	brelse(bh);
-	unlock_new_inode(inode);
-	return inode;
-fail_bh:
-	brelse(bh);
-iget_failed:
-	iget_failed(inode);
-	return ERR_PTR(-EIO);
-}
-
-static void omfs_put_super(struct super_block *sb)
-{
-	struct omfs_sb_info *sbi = OMFS_SB(sb);
-	kfree(sbi->s_imap);
-	kfree(sbi);
-	sb->s_fs_info = NULL;
-}
-
-static int omfs_statfs(struct dentry *dentry, struct kstatfs *buf)
-{
-	struct super_block *s = dentry->d_sb;
-	struct omfs_sb_info *sbi = OMFS_SB(s);
-	u64 id = huge_encode_dev(s->s_bdev->bd_dev);
-
-	buf->f_type = OMFS_MAGIC;
-	buf->f_bsize = sbi->s_blocksize;
-	buf->f_blocks = sbi->s_num_blocks;
-	buf->f_files = sbi->s_num_blocks;
-	buf->f_namelen = OMFS_NAMELEN;
-	buf->f_fsid.val[0] = (u32)id;
-	buf->f_fsid.val[1] = (u32)(id >> 32);
-
-	buf->f_bfree = buf->f_bavail = buf->f_ffree =
-		omfs_count_free(s);
-
-	return 0;
-}
-
-static const struct super_operations omfs_sops = {
-	.write_inode	= omfs_write_inode,
-	.evict_inode	= omfs_evict_inode,
-	.put_super	= omfs_put_super,
-	.statfs		= omfs_statfs,
-	.show_options	= generic_show_options,
-};
-
-/*
- * For Rio Karma, there is an on-disk free bitmap whose location is
- * stored in the root block.  For ReplayTV, there is no such free bitmap
- * so we have to walk the tree.  Both inodes and file data are allocated
- * from the same map.  This array can be big (300k) so we allocate
- * in units of the blocksize.
- */
-static int omfs_get_imap(struct super_block *sb)
-{
-	int bitmap_size;
-	int array_size;
-	int count;
-	struct omfs_sb_info *sbi = OMFS_SB(sb);
-	struct buffer_head *bh;
-	unsigned long **ptr;
-	sector_t block;
-
-	bitmap_size = DIV_ROUND_UP(sbi->s_num_blocks, 8);
-	array_size = DIV_ROUND_UP(bitmap_size, sb->s_blocksize);
-
-	if (sbi->s_bitmap_ino == ~0ULL)
-		goto out;
-
-	sbi->s_imap_size = array_size;
-	sbi->s_imap = kzalloc(array_size * sizeof(unsigned long *), GFP_KERNEL);
-	if (!sbi->s_imap)
-		goto nomem;
-
-	block = clus_to_blk(sbi, sbi->s_bitmap_ino);
-	if (block >= sbi->s_num_blocks)
-		goto nomem;
-
-	ptr = sbi->s_imap;
-	for (count = bitmap_size; count > 0; count -= sb->s_blocksize) {
-		bh = sb_bread(sb, block++);
-		if (!bh)
-			goto nomem_free;
-		*ptr = kmalloc(sb->s_blocksize, GFP_KERNEL);
-		if (!*ptr) {
-			brelse(bh);
-			goto nomem_free;
-		}
-		memcpy(*ptr, bh->b_data, sb->s_blocksize);
-		if (count < sb->s_blocksize)
-			memset((void *)*ptr + count, 0xff,
-				sb->s_blocksize - count);
-		brelse(bh);
-		ptr++;
-	}
-out:
-	return 0;
-
-nomem_free:
-	for (count = 0; count < array_size; count++)
-		kfree(sbi->s_imap[count]);
-
-	kfree(sbi->s_imap);
-nomem:
-	sbi->s_imap = NULL;
-	sbi->s_imap_size = 0;
-	return -ENOMEM;
-}
-
-enum {
-	Opt_uid, Opt_gid, Opt_umask, Opt_dmask, Opt_fmask
-};
-
-static const match_table_t tokens = {
-	{Opt_uid, "uid=%u"},
-	{Opt_gid, "gid=%u"},
-	{Opt_umask, "umask=%o"},
-	{Opt_dmask, "dmask=%o"},
-	{Opt_fmask, "fmask=%o"},
-};
-
-static int parse_options(char *options, struct omfs_sb_info *sbi)
-{
-	char *p;
-	substring_t args[MAX_OPT_ARGS];
-	int option;
-
-	if (!options)
-		return 1;
-
-	while ((p = strsep(&options, ",")) != NULL) {
-		int token;
-		if (!*p)
-			continue;
-
-		token = match_token(p, tokens, args);
-		switch (token) {
-		case Opt_uid:
-			if (match_int(&args[0], &option))
-				return 0;
-			sbi->s_uid = option;
-			break;
-		case Opt_gid:
-			if (match_int(&args[0], &option))
-				return 0;
-			sbi->s_gid = option;
-			break;
-		case Opt_umask:
-			if (match_octal(&args[0], &option))
-				return 0;
-			sbi->s_fmask = sbi->s_dmask = option;
-			break;
-		case Opt_dmask:
-			if (match_octal(&args[0], &option))
-				return 0;
-			sbi->s_dmask = option;
-			break;
-		case Opt_fmask:
-			if (match_octal(&args[0], &option))
-				return 0;
-			sbi->s_fmask = option;
-			break;
-		default:
-			return 0;
-		}
-	}
-	return 1;
-}
-
-static int omfs_fill_super(struct super_block *sb, void *data, int silent)
-{
-	struct buffer_head *bh, *bh2;
-	struct omfs_super_block *omfs_sb;
-	struct omfs_root_block *omfs_rb;
-	struct omfs_sb_info *sbi;
-	struct inode *root;
-	int ret = -EINVAL;
-
-	save_mount_options(sb, (char *) data);
-
-	sbi = kzalloc(sizeof(struct omfs_sb_info), GFP_KERNEL);
-	if (!sbi)
-		return -ENOMEM;
-
-	sb->s_fs_info = sbi;
-
-	sbi->s_uid = current_uid();
-	sbi->s_gid = current_gid();
-	sbi->s_dmask = sbi->s_fmask = current_umask();
-
-	if (!parse_options((char *) data, sbi))
-		goto end;
-
-	sb->s_maxbytes = 0xffffffff;
-
-	sb_set_blocksize(sb, 0x200);
-
-	bh = sb_bread(sb, 0);
-	if (!bh)
-		goto end;
-
-	omfs_sb = (struct omfs_super_block *)bh->b_data;
-
-	if (omfs_sb->s_magic != cpu_to_be32(OMFS_MAGIC)) {
-		if (!silent)
-			printk(KERN_ERR "omfs: Invalid superblock (%x)\n",
-				   omfs_sb->s_magic);
-		goto out_brelse_bh;
-	}
-	sb->s_magic = OMFS_MAGIC;
-
-	sbi->s_num_blocks = be64_to_cpu(omfs_sb->s_num_blocks);
-	sbi->s_blocksize = be32_to_cpu(omfs_sb->s_blocksize);
-	sbi->s_mirrors = be32_to_cpu(omfs_sb->s_mirrors);
-	sbi->s_root_ino = be64_to_cpu(omfs_sb->s_root_block);
-	sbi->s_sys_blocksize = be32_to_cpu(omfs_sb->s_sys_blocksize);
-	mutex_init(&sbi->s_bitmap_lock);
-
-	if (sbi->s_sys_blocksize > PAGE_SIZE) {
-		printk(KERN_ERR "omfs: sysblock size (%d) is out of range\n",
-			sbi->s_sys_blocksize);
-		goto out_brelse_bh;
-	}
-
-	if (sbi->s_blocksize < sbi->s_sys_blocksize ||
-	    sbi->s_blocksize > OMFS_MAX_BLOCK_SIZE) {
-		printk(KERN_ERR "omfs: block size (%d) is out of range\n",
-			sbi->s_blocksize);
-		goto out_brelse_bh;
-	}
-
-	/*
-	 * Use sys_blocksize as the fs block since it is smaller than a
-	 * page while the fs blocksize can be larger.
-	 */
-	sb_set_blocksize(sb, sbi->s_sys_blocksize);
-
-	/*
-	 * ...and the difference goes into a shift.  sys_blocksize is always
-	 * a power of two factor of blocksize.
-	 */
-	sbi->s_block_shift = get_bitmask_order(sbi->s_blocksize) -
-		get_bitmask_order(sbi->s_sys_blocksize);
-
-	bh2 = omfs_bread(sb, be64_to_cpu(omfs_sb->s_root_block));
-	if (!bh2)
-		goto out_brelse_bh;
-
-	omfs_rb = (struct omfs_root_block *)bh2->b_data;
-
-	sbi->s_bitmap_ino = be64_to_cpu(omfs_rb->r_bitmap);
-	sbi->s_clustersize = be32_to_cpu(omfs_rb->r_clustersize);
-
-	if (sbi->s_num_blocks != be64_to_cpu(omfs_rb->r_num_blocks)) {
-		printk(KERN_ERR "omfs: block count discrepancy between "
-			"super and root blocks (%llx, %llx)\n",
-			(unsigned long long)sbi->s_num_blocks,
-			(unsigned long long)be64_to_cpu(omfs_rb->r_num_blocks));
-		goto out_brelse_bh2;
-	}
-
-	if (sbi->s_bitmap_ino != ~0ULL &&
-	    sbi->s_bitmap_ino > sbi->s_num_blocks) {
-		printk(KERN_ERR "omfs: free space bitmap location is corrupt "
-			"(%llx, total blocks %llx)\n",
-			(unsigned long long) sbi->s_bitmap_ino,
-			(unsigned long long) sbi->s_num_blocks);
-		goto out_brelse_bh2;
-	}
-	if (sbi->s_clustersize < 1 ||
-	    sbi->s_clustersize > OMFS_MAX_CLUSTER_SIZE) {
-		printk(KERN_ERR "omfs: cluster size out of range (%d)",
-			sbi->s_clustersize);
-		goto out_brelse_bh2;
-	}
-
-	ret = omfs_get_imap(sb);
-	if (ret)
-		goto out_brelse_bh2;
-
-	sb->s_op = &omfs_sops;
-
-	root = omfs_iget(sb, be64_to_cpu(omfs_rb->r_root_dir));
-	if (IS_ERR(root)) {
-		ret = PTR_ERR(root);
-		goto out_brelse_bh2;
-	}
-
-	sb->s_root = d_make_root(root);
-	if (!sb->s_root)
-		goto out_brelse_bh2;
-	printk(KERN_DEBUG "omfs: Mounted volume %s\n", omfs_rb->r_name);
-
-	ret = 0;
-out_brelse_bh2:
-	brelse(bh2);
-out_brelse_bh:
-	brelse(bh);
-end:
-	if (ret)
-		kfree(sbi);
-	return ret;
-}
-
-static struct dentry *omfs_mount(struct file_system_type *fs_type,
-			int flags, const char *dev_name, void *data)
-{
-	return mount_bdev(fs_type, flags, dev_name, data, omfs_fill_super);
-}
-
-static struct file_system_type omfs_fs_type = {
-	.owner = THIS_MODULE,
-	.name = "omfs",
-	.mount = omfs_mount,
-	.kill_sb = kill_block_super,
-	.fs_flags = FS_REQUIRES_DEV,
-};
-
-static int __init init_omfs_fs(void)
-{
-	return register_filesystem(&omfs_fs_type);
-}
-
-static void __exit exit_omfs_fs(void)
-{
-	unregister_filesystem(&omfs_fs_type);
-}
-
-module_init(init_omfs_fs);
-module_exit(exit_omfs_fs);