1 files changed, 0 insertions, 494 deletions

diff --git a/ANDROID_3.4.5/fs/bfs/inode.c b/ANDROID_3.4.5/fs/bfs/inode.c
deleted file mode 100644
index e23dc7c8..00000000
--- a/ANDROID_3.4.5/fs/bfs/inode.c
+++ /dev/null
@@ -1,494 +0,0 @@
-/*
- *	fs/bfs/inode.c
- *	BFS superblock and inode operations.
- *	Copyright (C) 1999-2006 Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
- *	From fs/minix, Copyright (C) 1991, 1992 Linus Torvalds.
- *
- *      Made endianness-clean by Andrew Stribblehill <ads@wompom.org>, 2005.
- */
-
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/buffer_head.h>
-#include <linux/vfs.h>
-#include <linux/writeback.h>
-#include <asm/uaccess.h>
-#include "bfs.h"
-
-MODULE_AUTHOR("Tigran Aivazian <tigran@aivazian.fsnet.co.uk>");
-MODULE_DESCRIPTION("SCO UnixWare BFS filesystem for Linux");
-MODULE_LICENSE("GPL");
-
-#undef DEBUG
-
-#ifdef DEBUG
-#define dprintf(x...)	printf(x)
-#else
-#define dprintf(x...)
-#endif
-
-void dump_imap(const char *prefix, struct super_block *s);
-
-struct inode *bfs_iget(struct super_block *sb, unsigned long ino)
-{
-	struct bfs_inode *di;
-	struct inode *inode;
-	struct buffer_head *bh;
-	int block, off;
-
-	inode = iget_locked(sb, ino);
-	if (IS_ERR(inode))
-		return ERR_PTR(-ENOMEM);
-	if (!(inode->i_state & I_NEW))
-		return inode;
-
-	if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(inode->i_sb)->si_lasti)) {
-		printf("Bad inode number %s:%08lx\n", inode->i_sb->s_id, ino);
-		goto error;
-	}
-
-	block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
-	bh = sb_bread(inode->i_sb, block);
-	if (!bh) {
-		printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id,
-									ino);
-		goto error;
-	}
-
-	off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
-	di = (struct bfs_inode *)bh->b_data + off;
-
-	inode->i_mode = 0x0000FFFF & le32_to_cpu(di->i_mode);
-	if (le32_to_cpu(di->i_vtype) == BFS_VDIR) {
-		inode->i_mode |= S_IFDIR;
-		inode->i_op = &bfs_dir_inops;
-		inode->i_fop = &bfs_dir_operations;
-	} else if (le32_to_cpu(di->i_vtype) == BFS_VREG) {
-		inode->i_mode |= S_IFREG;
-		inode->i_op = &bfs_file_inops;
-		inode->i_fop = &bfs_file_operations;
-		inode->i_mapping->a_ops = &bfs_aops;
-	}
-
-	BFS_I(inode)->i_sblock =  le32_to_cpu(di->i_sblock);
-	BFS_I(inode)->i_eblock =  le32_to_cpu(di->i_eblock);
-	BFS_I(inode)->i_dsk_ino = le16_to_cpu(di->i_ino);
-	inode->i_uid =  le32_to_cpu(di->i_uid);
-	inode->i_gid =  le32_to_cpu(di->i_gid);
-	set_nlink(inode, le32_to_cpu(di->i_nlink));
-	inode->i_size = BFS_FILESIZE(di);
-	inode->i_blocks = BFS_FILEBLOCKS(di);
-	inode->i_atime.tv_sec =  le32_to_cpu(di->i_atime);
-	inode->i_mtime.tv_sec =  le32_to_cpu(di->i_mtime);
-	inode->i_ctime.tv_sec =  le32_to_cpu(di->i_ctime);
-	inode->i_atime.tv_nsec = 0;
-	inode->i_mtime.tv_nsec = 0;
-	inode->i_ctime.tv_nsec = 0;
-
-	brelse(bh);
-	unlock_new_inode(inode);
-	return inode;
-
-error:
-	iget_failed(inode);
-	return ERR_PTR(-EIO);
-}
-
-static struct bfs_inode *find_inode(struct super_block *sb, u16 ino, struct buffer_head **p)
-{
-	if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(sb)->si_lasti)) {
-		printf("Bad inode number %s:%08x\n", sb->s_id, ino);
-		return ERR_PTR(-EIO);
-	}
-
-	ino -= BFS_ROOT_INO;
-
-	*p = sb_bread(sb, 1 + ino / BFS_INODES_PER_BLOCK);
-	if (!*p) {
-		printf("Unable to read inode %s:%08x\n", sb->s_id, ino);
-		return ERR_PTR(-EIO);
-	}
-
-	return (struct bfs_inode *)(*p)->b_data +  ino % BFS_INODES_PER_BLOCK;
-}
-
-static int bfs_write_inode(struct inode *inode, struct writeback_control *wbc)
-{
-	struct bfs_sb_info *info = BFS_SB(inode->i_sb);
-	unsigned int ino = (u16)inode->i_ino;
-        unsigned long i_sblock;
-	struct bfs_inode *di;
-	struct buffer_head *bh;
-	int err = 0;
-
-        dprintf("ino=%08x\n", ino);
-
-	di = find_inode(inode->i_sb, ino, &bh);
-	if (IS_ERR(di))
-		return PTR_ERR(di);
-
-	mutex_lock(&info->bfs_lock);
-
-	if (ino == BFS_ROOT_INO)
-		di->i_vtype = cpu_to_le32(BFS_VDIR);
-	else
-		di->i_vtype = cpu_to_le32(BFS_VREG);
-
-	di->i_ino = cpu_to_le16(ino);
-	di->i_mode = cpu_to_le32(inode->i_mode);
-	di->i_uid = cpu_to_le32(inode->i_uid);
-	di->i_gid = cpu_to_le32(inode->i_gid);
-	di->i_nlink = cpu_to_le32(inode->i_nlink);
-	di->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
-	di->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec);
-	di->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec);
-        i_sblock = BFS_I(inode)->i_sblock;
-	di->i_sblock = cpu_to_le32(i_sblock);
-	di->i_eblock = cpu_to_le32(BFS_I(inode)->i_eblock);
-	di->i_eoffset = cpu_to_le32(i_sblock * BFS_BSIZE + inode->i_size - 1);
-
-	mark_buffer_dirty(bh);
-	if (wbc->sync_mode == WB_SYNC_ALL) {
-		sync_dirty_buffer(bh);
-		if (buffer_req(bh) && !buffer_uptodate(bh))
-			err = -EIO;
-	}
-	brelse(bh);
-	mutex_unlock(&info->bfs_lock);
-	return err;
-}
-
-static void bfs_evict_inode(struct inode *inode)
-{
-	unsigned long ino = inode->i_ino;
-	struct bfs_inode *di;
-	struct buffer_head *bh;
-	struct super_block *s = inode->i_sb;
-	struct bfs_sb_info *info = BFS_SB(s);
-	struct bfs_inode_info *bi = BFS_I(inode);
-
-	dprintf("ino=%08lx\n", ino);
-
-	truncate_inode_pages(&inode->i_data, 0);
-	invalidate_inode_buffers(inode);
-	end_writeback(inode);
-
-	if (inode->i_nlink)
-		return;
-
-	di = find_inode(s, inode->i_ino, &bh);
-	if (IS_ERR(di))
-		return;
-
-	mutex_lock(&info->bfs_lock);
-	/* clear on-disk inode */
-	memset(di, 0, sizeof(struct bfs_inode));
-	mark_buffer_dirty(bh);
-	brelse(bh);
-
-        if (bi->i_dsk_ino) {
-		if (bi->i_sblock)
-			info->si_freeb += bi->i_eblock + 1 - bi->i_sblock;
-		info->si_freei++;
-		clear_bit(ino, info->si_imap);
-		dump_imap("delete_inode", s);
-        }
-
-	/*
-	 * If this was the last file, make the previous block
-	 * "last block of the last file" even if there is no
-	 * real file there, saves us 1 gap.
-	 */
-	if (info->si_lf_eblk == bi->i_eblock)
-		info->si_lf_eblk = bi->i_sblock - 1;
-	mutex_unlock(&info->bfs_lock);
-}
-
-static void bfs_put_super(struct super_block *s)
-{
-	struct bfs_sb_info *info = BFS_SB(s);
-
-	if (!info)
-		return;
-
-	mutex_destroy(&info->bfs_lock);
-	kfree(info->si_imap);
-	kfree(info);
-	s->s_fs_info = NULL;
-}
-
-static int bfs_statfs(struct dentry *dentry, struct kstatfs *buf)
-{
-	struct super_block *s = dentry->d_sb;
-	struct bfs_sb_info *info = BFS_SB(s);
-	u64 id = huge_encode_dev(s->s_bdev->bd_dev);
-	buf->f_type = BFS_MAGIC;
-	buf->f_bsize = s->s_blocksize;
-	buf->f_blocks = info->si_blocks;
-	buf->f_bfree = buf->f_bavail = info->si_freeb;
-	buf->f_files = info->si_lasti + 1 - BFS_ROOT_INO;
-	buf->f_ffree = info->si_freei;
-	buf->f_fsid.val[0] = (u32)id;
-	buf->f_fsid.val[1] = (u32)(id >> 32);
-	buf->f_namelen = BFS_NAMELEN;
-	return 0;
-}
-
-static struct kmem_cache *bfs_inode_cachep;
-
-static struct inode *bfs_alloc_inode(struct super_block *sb)
-{
-	struct bfs_inode_info *bi;
-	bi = kmem_cache_alloc(bfs_inode_cachep, GFP_KERNEL);
-	if (!bi)
-		return NULL;
-	return &bi->vfs_inode;
-}
-
-static void bfs_i_callback(struct rcu_head *head)
-{
-	struct inode *inode = container_of(head, struct inode, i_rcu);
-	kmem_cache_free(bfs_inode_cachep, BFS_I(inode));
-}
-
-static void bfs_destroy_inode(struct inode *inode)
-{
-	call_rcu(&inode->i_rcu, bfs_i_callback);
-}
-
-static void init_once(void *foo)
-{
-	struct bfs_inode_info *bi = foo;
-
-	inode_init_once(&bi->vfs_inode);
-}
-
-static int init_inodecache(void)
-{
-	bfs_inode_cachep = kmem_cache_create("bfs_inode_cache",
-					     sizeof(struct bfs_inode_info),
-					     0, (SLAB_RECLAIM_ACCOUNT|
-						SLAB_MEM_SPREAD),
-					     init_once);
-	if (bfs_inode_cachep == NULL)
-		return -ENOMEM;
-	return 0;
-}
-
-static void destroy_inodecache(void)
-{
-	kmem_cache_destroy(bfs_inode_cachep);
-}
-
-static const struct super_operations bfs_sops = {
-	.alloc_inode	= bfs_alloc_inode,
-	.destroy_inode	= bfs_destroy_inode,
-	.write_inode	= bfs_write_inode,
-	.evict_inode	= bfs_evict_inode,
-	.put_super	= bfs_put_super,
-	.statfs		= bfs_statfs,
-};
-
-void dump_imap(const char *prefix, struct super_block *s)
-{
-#ifdef DEBUG
-	int i;
-	char *tmpbuf = (char *)get_zeroed_page(GFP_KERNEL);
-
-	if (!tmpbuf)
-		return;
-	for (i = BFS_SB(s)->si_lasti; i >= 0; i--) {
-		if (i > PAGE_SIZE - 100) break;
-		if (test_bit(i, BFS_SB(s)->si_imap))
-			strcat(tmpbuf, "1");
-		else
-			strcat(tmpbuf, "0");
-	}
-	printf("BFS-fs: %s: lasti=%08lx <%s>\n",
-				prefix, BFS_SB(s)->si_lasti, tmpbuf);
-	free_page((unsigned long)tmpbuf);
-#endif
-}
-
-static int bfs_fill_super(struct super_block *s, void *data, int silent)
-{
-	struct buffer_head *bh, *sbh;
-	struct bfs_super_block *bfs_sb;
-	struct inode *inode;
-	unsigned i, imap_len;
-	struct bfs_sb_info *info;
-	int ret = -EINVAL;
-	unsigned long i_sblock, i_eblock, i_eoff, s_size;
-
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
-	if (!info)
-		return -ENOMEM;
-	mutex_init(&info->bfs_lock);
-	s->s_fs_info = info;
-
-	sb_set_blocksize(s, BFS_BSIZE);
-
-	sbh = sb_bread(s, 0);
-	if (!sbh)
-		goto out;
-	bfs_sb = (struct bfs_super_block *)sbh->b_data;
-	if (le32_to_cpu(bfs_sb->s_magic) != BFS_MAGIC) {
-		if (!silent)
-			printf("No BFS filesystem on %s (magic=%08x)\n", 
-				s->s_id,  le32_to_cpu(bfs_sb->s_magic));
-		goto out1;
-	}
-	if (BFS_UNCLEAN(bfs_sb, s) && !silent)
-		printf("%s is unclean, continuing\n", s->s_id);
-
-	s->s_magic = BFS_MAGIC;
-
-	if (le32_to_cpu(bfs_sb->s_start) > le32_to_cpu(bfs_sb->s_end)) {
-		printf("Superblock is corrupted\n");
-		goto out1;
-	}
-
-	info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE) /
-					sizeof(struct bfs_inode)
-					+ BFS_ROOT_INO - 1;
-	imap_len = (info->si_lasti / 8) + 1;
-	info->si_imap = kzalloc(imap_len, GFP_KERNEL);
-	if (!info->si_imap)
-		goto out1;
-	for (i = 0; i < BFS_ROOT_INO; i++)
-		set_bit(i, info->si_imap);
-
-	s->s_op = &bfs_sops;
-	inode = bfs_iget(s, BFS_ROOT_INO);
-	if (IS_ERR(inode)) {
-		ret = PTR_ERR(inode);
-		goto out2;
-	}
-	s->s_root = d_make_root(inode);
-	if (!s->s_root) {
-		ret = -ENOMEM;
-		goto out2;
-	}
-
-	info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1) >> BFS_BSIZE_BITS;
-	info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1
-			- le32_to_cpu(bfs_sb->s_start)) >> BFS_BSIZE_BITS;
-	info->si_freei = 0;
-	info->si_lf_eblk = 0;
-
-	/* can we read the last block? */
-	bh = sb_bread(s, info->si_blocks - 1);
-	if (!bh) {
-		printf("Last block not available: %lu\n", info->si_blocks - 1);
-		ret = -EIO;
-		goto out3;
-	}
-	brelse(bh);
-
-	bh = NULL;
-	for (i = BFS_ROOT_INO; i <= info->si_lasti; i++) {
-		struct bfs_inode *di;
-		int block = (i - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
-		int off = (i - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
-		unsigned long eblock;
-
-		if (!off) {
-			brelse(bh);
-			bh = sb_bread(s, block);
-		}
-
-		if (!bh)
-			continue;
-
-		di = (struct bfs_inode *)bh->b_data + off;
-
-		/* test if filesystem is not corrupted */
-
-		i_eoff = le32_to_cpu(di->i_eoffset);
-		i_sblock = le32_to_cpu(di->i_sblock);
-		i_eblock = le32_to_cpu(di->i_eblock);
-		s_size = le32_to_cpu(bfs_sb->s_end);
-
-		if (i_sblock > info->si_blocks ||
-			i_eblock > info->si_blocks ||
-			i_sblock > i_eblock ||
-			i_eoff > s_size ||
-			i_sblock * BFS_BSIZE > i_eoff) {
-
-			printf("Inode 0x%08x corrupted\n", i);
-
-			brelse(bh);
-			ret = -EIO;
-			goto out3;
-		}
-
-		if (!di->i_ino) {
-			info->si_freei++;
-			continue;
-		}
-		set_bit(i, info->si_imap);
-		info->si_freeb -= BFS_FILEBLOCKS(di);
-
-		eblock =  le32_to_cpu(di->i_eblock);
-		if (eblock > info->si_lf_eblk)
-			info->si_lf_eblk = eblock;
-	}
-	brelse(bh);
-	brelse(sbh);
-	dump_imap("read_super", s);
-	return 0;
-
-out3:
-	dput(s->s_root);
-	s->s_root = NULL;
-out2:
-	kfree(info->si_imap);
-out1:
-	brelse(sbh);
-out:
-	mutex_destroy(&info->bfs_lock);
-	kfree(info);
-	s->s_fs_info = NULL;
-	return ret;
-}
-
-static struct dentry *bfs_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data)
-{
-	return mount_bdev(fs_type, flags, dev_name, data, bfs_fill_super);
-}
-
-static struct file_system_type bfs_fs_type = {
-	.owner		= THIS_MODULE,
-	.name		= "bfs",
-	.mount		= bfs_mount,
-	.kill_sb	= kill_block_super,
-	.fs_flags	= FS_REQUIRES_DEV,
-};
-
-static int __init init_bfs_fs(void)
-{
-	int err = init_inodecache();
-	if (err)
-		goto out1;
-        err = register_filesystem(&bfs_fs_type);
-	if (err)
-		goto out;
-	return 0;
-out:
-	destroy_inodecache();
-out1:
-	return err;
-}
-
-static void __exit exit_bfs_fs(void)
-{
-	unregister_filesystem(&bfs_fs_type);
-	destroy_inodecache();
-}
-
-module_init(init_bfs_fs)
-module_exit(exit_bfs_fs)