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, 515 deletions

diff --git a/ANDROID_3.4.5/arch/s390/hypfs/inode.c b/ANDROID_3.4.5/arch/s390/hypfs/inode.c
deleted file mode 100644
index 6a2cb560..00000000
--- a/ANDROID_3.4.5/arch/s390/hypfs/inode.c
+++ /dev/null
@@ -1,515 +0,0 @@
-/*
- *  arch/s390/hypfs/inode.c
- *    Hypervisor filesystem for Linux on s390.
- *
- *    Copyright IBM Corp. 2006, 2008
- *    Author(s): Michael Holzheu <holzheu@de.ibm.com>
- */
-
-#define KMSG_COMPONENT "hypfs"
-#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/namei.h>
-#include <linux/vfs.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <linux/time.h>
-#include <linux/parser.h>
-#include <linux/sysfs.h>
-#include <linux/module.h>
-#include <linux/seq_file.h>
-#include <linux/mount.h>
-#include <asm/ebcdic.h>
-#include "hypfs.h"
-
-#define HYPFS_MAGIC 0x687970	/* ASCII 'hyp' */
-#define TMP_SIZE 64		/* size of temporary buffers */
-
-static struct dentry *hypfs_create_update_file(struct super_block *sb,
-					       struct dentry *dir);
-
-struct hypfs_sb_info {
-	uid_t uid;			/* uid used for files and dirs */
-	gid_t gid;			/* gid used for files and dirs */
-	struct dentry *update_file;	/* file to trigger update */
-	time_t last_update;		/* last update time in secs since 1970 */
-	struct mutex lock;		/* lock to protect update process */
-};
-
-static const struct file_operations hypfs_file_ops;
-static struct file_system_type hypfs_type;
-static const struct super_operations hypfs_s_ops;
-
-/* start of list of all dentries, which have to be deleted on update */
-static struct dentry *hypfs_last_dentry;
-
-static void hypfs_update_update(struct super_block *sb)
-{
-	struct hypfs_sb_info *sb_info = sb->s_fs_info;
-	struct inode *inode = sb_info->update_file->d_inode;
-
-	sb_info->last_update = get_seconds();
-	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
-}
-
-/* directory tree removal functions */
-
-static void hypfs_add_dentry(struct dentry *dentry)
-{
-	dentry->d_fsdata = hypfs_last_dentry;
-	hypfs_last_dentry = dentry;
-}
-
-static inline int hypfs_positive(struct dentry *dentry)
-{
-	return dentry->d_inode && !d_unhashed(dentry);
-}
-
-static void hypfs_remove(struct dentry *dentry)
-{
-	struct dentry *parent;
-
-	parent = dentry->d_parent;
-	if (!parent || !parent->d_inode)
-		return;
-	mutex_lock(&parent->d_inode->i_mutex);
-	if (hypfs_positive(dentry)) {
-		if (S_ISDIR(dentry->d_inode->i_mode))
-			simple_rmdir(parent->d_inode, dentry);
-		else
-			simple_unlink(parent->d_inode, dentry);
-	}
-	d_delete(dentry);
-	dput(dentry);
-	mutex_unlock(&parent->d_inode->i_mutex);
-}
-
-static void hypfs_delete_tree(struct dentry *root)
-{
-	while (hypfs_last_dentry) {
-		struct dentry *next_dentry;
-		next_dentry = hypfs_last_dentry->d_fsdata;
-		hypfs_remove(hypfs_last_dentry);
-		hypfs_last_dentry = next_dentry;
-	}
-}
-
-static struct inode *hypfs_make_inode(struct super_block *sb, umode_t mode)
-{
-	struct inode *ret = new_inode(sb);
-
-	if (ret) {
-		struct hypfs_sb_info *hypfs_info = sb->s_fs_info;
-		ret->i_mode = mode;
-		ret->i_uid = hypfs_info->uid;
-		ret->i_gid = hypfs_info->gid;
-		ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME;
-		if (S_ISDIR(mode))
-			set_nlink(ret, 2);
-	}
-	return ret;
-}
-
-static void hypfs_evict_inode(struct inode *inode)
-{
-	end_writeback(inode);
-	kfree(inode->i_private);
-}
-
-static int hypfs_open(struct inode *inode, struct file *filp)
-{
-	char *data = filp->f_path.dentry->d_inode->i_private;
-	struct hypfs_sb_info *fs_info;
-
-	if (filp->f_mode & FMODE_WRITE) {
-		if (!(inode->i_mode & S_IWUGO))
-			return -EACCES;
-	}
-	if (filp->f_mode & FMODE_READ) {
-		if (!(inode->i_mode & S_IRUGO))
-			return -EACCES;
-	}
-
-	fs_info = inode->i_sb->s_fs_info;
-	if(data) {
-		mutex_lock(&fs_info->lock);
-		filp->private_data = kstrdup(data, GFP_KERNEL);
-		if (!filp->private_data) {
-			mutex_unlock(&fs_info->lock);
-			return -ENOMEM;
-		}
-		mutex_unlock(&fs_info->lock);
-	}
-	return nonseekable_open(inode, filp);
-}
-
-static ssize_t hypfs_aio_read(struct kiocb *iocb, const struct iovec *iov,
-			      unsigned long nr_segs, loff_t offset)
-{
-	char *data;
-	ssize_t ret;
-	struct file *filp = iocb->ki_filp;
-	/* XXX: temporary */
-	char __user *buf = iov[0].iov_base;
-	size_t count = iov[0].iov_len;
-
-	if (nr_segs != 1)
-		return -EINVAL;
-
-	data = filp->private_data;
-	ret = simple_read_from_buffer(buf, count, &offset, data, strlen(data));
-	if (ret <= 0)
-		return ret;
-
-	iocb->ki_pos += ret;
-	file_accessed(filp);
-
-	return ret;
-}
-static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
-			      unsigned long nr_segs, loff_t offset)
-{
-	int rc;
-	struct super_block *sb;
-	struct hypfs_sb_info *fs_info;
-	size_t count = iov_length(iov, nr_segs);
-
-	sb = iocb->ki_filp->f_path.dentry->d_inode->i_sb;
-	fs_info = sb->s_fs_info;
-	/*
-	 * Currently we only allow one update per second for two reasons:
-	 * 1. diag 204 is VERY expensive
-	 * 2. If several processes do updates in parallel and then read the
-	 *    hypfs data, the likelihood of collisions is reduced, if we restrict
-	 *    the minimum update interval. A collision occurs, if during the
-	 *    data gathering of one process another process triggers an update
-	 *    If the first process wants to ensure consistent data, it has
-	 *    to restart data collection in this case.
-	 */
-	mutex_lock(&fs_info->lock);
-	if (fs_info->last_update == get_seconds()) {
-		rc = -EBUSY;
-		goto out;
-	}
-	hypfs_delete_tree(sb->s_root);
-	if (MACHINE_IS_VM)
-		rc = hypfs_vm_create_files(sb, sb->s_root);
-	else
-		rc = hypfs_diag_create_files(sb, sb->s_root);
-	if (rc) {
-		pr_err("Updating the hypfs tree failed\n");
-		hypfs_delete_tree(sb->s_root);
-		goto out;
-	}
-	hypfs_update_update(sb);
-	rc = count;
-out:
-	mutex_unlock(&fs_info->lock);
-	return rc;
-}
-
-static int hypfs_release(struct inode *inode, struct file *filp)
-{
-	kfree(filp->private_data);
-	return 0;
-}
-
-enum { opt_uid, opt_gid, opt_err };
-
-static const match_table_t hypfs_tokens = {
-	{opt_uid, "uid=%u"},
-	{opt_gid, "gid=%u"},
-	{opt_err, NULL}
-};
-
-static int hypfs_parse_options(char *options, struct super_block *sb)
-{
-	char *str;
-	substring_t args[MAX_OPT_ARGS];
-
-	if (!options)
-		return 0;
-	while ((str = strsep(&options, ",")) != NULL) {
-		int token, option;
-		struct hypfs_sb_info *hypfs_info = sb->s_fs_info;
-
-		if (!*str)
-			continue;
-		token = match_token(str, hypfs_tokens, args);
-		switch (token) {
-		case opt_uid:
-			if (match_int(&args[0], &option))
-				return -EINVAL;
-			hypfs_info->uid = option;
-			break;
-		case opt_gid:
-			if (match_int(&args[0], &option))
-				return -EINVAL;
-			hypfs_info->gid = option;
-			break;
-		case opt_err:
-		default:
-			pr_err("%s is not a valid mount option\n", str);
-			return -EINVAL;
-		}
-	}
-	return 0;
-}
-
-static int hypfs_show_options(struct seq_file *s, struct dentry *root)
-{
-	struct hypfs_sb_info *hypfs_info = root->d_sb->s_fs_info;
-
-	seq_printf(s, ",uid=%u", hypfs_info->uid);
-	seq_printf(s, ",gid=%u", hypfs_info->gid);
-	return 0;
-}
-
-static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
-{
-	struct inode *root_inode;
-	struct dentry *root_dentry;
-	int rc = 0;
-	struct hypfs_sb_info *sbi;
-
-	sbi = kzalloc(sizeof(struct hypfs_sb_info), GFP_KERNEL);
-	if (!sbi)
-		return -ENOMEM;
-	mutex_init(&sbi->lock);
-	sbi->uid = current_uid();
-	sbi->gid = current_gid();
-	sb->s_fs_info = sbi;
-	sb->s_blocksize = PAGE_CACHE_SIZE;
-	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
-	sb->s_magic = HYPFS_MAGIC;
-	sb->s_op = &hypfs_s_ops;
-	if (hypfs_parse_options(data, sb))
-		return -EINVAL;
-	root_inode = hypfs_make_inode(sb, S_IFDIR | 0755);
-	if (!root_inode)
-		return -ENOMEM;
-	root_inode->i_op = &simple_dir_inode_operations;
-	root_inode->i_fop = &simple_dir_operations;
-	sb->s_root = root_dentry = d_make_root(root_inode);
-	if (!root_dentry)
-		return -ENOMEM;
-	if (MACHINE_IS_VM)
-		rc = hypfs_vm_create_files(sb, root_dentry);
-	else
-		rc = hypfs_diag_create_files(sb, root_dentry);
-	if (rc)
-		return rc;
-	sbi->update_file = hypfs_create_update_file(sb, root_dentry);
-	if (IS_ERR(sbi->update_file))
-		return PTR_ERR(sbi->update_file);
-	hypfs_update_update(sb);
-	pr_info("Hypervisor filesystem mounted\n");
-	return 0;
-}
-
-static struct dentry *hypfs_mount(struct file_system_type *fst, int flags,
-			const char *devname, void *data)
-{
-	return mount_single(fst, flags, data, hypfs_fill_super);
-}
-
-static void hypfs_kill_super(struct super_block *sb)
-{
-	struct hypfs_sb_info *sb_info = sb->s_fs_info;
-
-	if (sb->s_root)
-		hypfs_delete_tree(sb->s_root);
-	if (sb_info->update_file)
-		hypfs_remove(sb_info->update_file);
-	kfree(sb->s_fs_info);
-	sb->s_fs_info = NULL;
-	kill_litter_super(sb);
-}
-
-static struct dentry *hypfs_create_file(struct super_block *sb,
-					struct dentry *parent, const char *name,
-					char *data, umode_t mode)
-{
-	struct dentry *dentry;
-	struct inode *inode;
-
-	mutex_lock(&parent->d_inode->i_mutex);
-	dentry = lookup_one_len(name, parent, strlen(name));
-	if (IS_ERR(dentry)) {
-		dentry = ERR_PTR(-ENOMEM);
-		goto fail;
-	}
-	inode = hypfs_make_inode(sb, mode);
-	if (!inode) {
-		dput(dentry);
-		dentry = ERR_PTR(-ENOMEM);
-		goto fail;
-	}
-	if (S_ISREG(mode)) {
-		inode->i_fop = &hypfs_file_ops;
-		if (data)
-			inode->i_size = strlen(data);
-		else
-			inode->i_size = 0;
-	} else if (S_ISDIR(mode)) {
-		inode->i_op = &simple_dir_inode_operations;
-		inode->i_fop = &simple_dir_operations;
-		inc_nlink(parent->d_inode);
-	} else
-		BUG();
-	inode->i_private = data;
-	d_instantiate(dentry, inode);
-	dget(dentry);
-fail:
-	mutex_unlock(&parent->d_inode->i_mutex);
-	return dentry;
-}
-
-struct dentry *hypfs_mkdir(struct super_block *sb, struct dentry *parent,
-			   const char *name)
-{
-	struct dentry *dentry;
-
-	dentry = hypfs_create_file(sb, parent, name, NULL, S_IFDIR | DIR_MODE);
-	if (IS_ERR(dentry))
-		return dentry;
-	hypfs_add_dentry(dentry);
-	return dentry;
-}
-
-static struct dentry *hypfs_create_update_file(struct super_block *sb,
-					       struct dentry *dir)
-{
-	struct dentry *dentry;
-
-	dentry = hypfs_create_file(sb, dir, "update", NULL,
-				   S_IFREG | UPDATE_FILE_MODE);
-	/*
-	 * We do not put the update file on the 'delete' list with
-	 * hypfs_add_dentry(), since it should not be removed when the tree
-	 * is updated.
-	 */
-	return dentry;
-}
-
-struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
-				const char *name, __u64 value)
-{
-	char *buffer;
-	char tmp[TMP_SIZE];
-	struct dentry *dentry;
-
-	snprintf(tmp, TMP_SIZE, "%llu\n", (unsigned long long int)value);
-	buffer = kstrdup(tmp, GFP_KERNEL);
-	if (!buffer)
-		return ERR_PTR(-ENOMEM);
-	dentry =
-	    hypfs_create_file(sb, dir, name, buffer, S_IFREG | REG_FILE_MODE);
-	if (IS_ERR(dentry)) {
-		kfree(buffer);
-		return ERR_PTR(-ENOMEM);
-	}
-	hypfs_add_dentry(dentry);
-	return dentry;
-}
-
-struct dentry *hypfs_create_str(struct super_block *sb, struct dentry *dir,
-				const char *name, char *string)
-{
-	char *buffer;
-	struct dentry *dentry;
-
-	buffer = kmalloc(strlen(string) + 2, GFP_KERNEL);
-	if (!buffer)
-		return ERR_PTR(-ENOMEM);
-	sprintf(buffer, "%s\n", string);
-	dentry =
-	    hypfs_create_file(sb, dir, name, buffer, S_IFREG | REG_FILE_MODE);
-	if (IS_ERR(dentry)) {
-		kfree(buffer);
-		return ERR_PTR(-ENOMEM);
-	}
-	hypfs_add_dentry(dentry);
-	return dentry;
-}
-
-static const struct file_operations hypfs_file_ops = {
-	.open		= hypfs_open,
-	.release	= hypfs_release,
-	.read		= do_sync_read,
-	.write		= do_sync_write,
-	.aio_read	= hypfs_aio_read,
-	.aio_write	= hypfs_aio_write,
-	.llseek		= no_llseek,
-};
-
-static struct file_system_type hypfs_type = {
-	.owner		= THIS_MODULE,
-	.name		= "s390_hypfs",
-	.mount		= hypfs_mount,
-	.kill_sb	= hypfs_kill_super
-};
-
-static const struct super_operations hypfs_s_ops = {
-	.statfs		= simple_statfs,
-	.evict_inode	= hypfs_evict_inode,
-	.show_options	= hypfs_show_options,
-};
-
-static struct kobject *s390_kobj;
-
-static int __init hypfs_init(void)
-{
-	int rc;
-
-	rc = hypfs_dbfs_init();
-	if (rc)
-		return rc;
-	if (hypfs_diag_init()) {
-		rc = -ENODATA;
-		goto fail_dbfs_exit;
-	}
-	if (hypfs_vm_init()) {
-		rc = -ENODATA;
-		goto fail_hypfs_diag_exit;
-	}
-	s390_kobj = kobject_create_and_add("s390", hypervisor_kobj);
-	if (!s390_kobj) {
-		rc = -ENOMEM;
-		goto fail_hypfs_vm_exit;
-	}
-	rc = register_filesystem(&hypfs_type);
-	if (rc)
-		goto fail_filesystem;
-	return 0;
-
-fail_filesystem:
-	kobject_put(s390_kobj);
-fail_hypfs_vm_exit:
-	hypfs_vm_exit();
-fail_hypfs_diag_exit:
-	hypfs_diag_exit();
-fail_dbfs_exit:
-	hypfs_dbfs_exit();
-	pr_err("Initialization of hypfs failed with rc=%i\n", rc);
-	return rc;
-}
-
-static void __exit hypfs_exit(void)
-{
-	hypfs_diag_exit();
-	hypfs_vm_exit();
-	hypfs_dbfs_exit();
-	unregister_filesystem(&hypfs_type);
-	kobject_put(s390_kobj);
-}
-
-module_init(hypfs_init)
-module_exit(hypfs_exit)
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Michael Holzheu <holzheu@de.ibm.com>");
-MODULE_DESCRIPTION("s390 Hypervisor Filesystem");