1 files changed, 0 insertions, 411 deletions

diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
deleted file mode 100644
index 064264992b49..000000000000
--- a/fs/reiserfs/xattr_acl.c
+++ /dev/null
@@ -1,411 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/capability.h>
-#include <linux/fs.h>
-#include <linux/posix_acl.h>
-#include "reiserfs.h"
-#include <linux/errno.h>
-#include <linux/pagemap.h>
-#include <linux/xattr.h>
-#include <linux/slab.h>
-#include <linux/posix_acl_xattr.h>
-#include "xattr.h"
-#include "acl.h"
-#include <linux/uaccess.h>
-
-static int __reiserfs_set_acl(struct reiserfs_transaction_handle *th,
-			    struct inode *inode, int type,
-			    struct posix_acl *acl);
-
-
-int
-reiserfs_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
-		 struct posix_acl *acl, int type)
-{
-	int error, error2;
-	struct reiserfs_transaction_handle th;
-	size_t jcreate_blocks;
-	int size = acl ? posix_acl_xattr_size(acl->a_count) : 0;
-	int update_mode = 0;
-	struct inode *inode = d_inode(dentry);
-	umode_t mode = inode->i_mode;
-
-	/*
-	 * Pessimism: We can't assume that anything from the xattr root up
-	 * has been created.
-	 */
-
-	jcreate_blocks = reiserfs_xattr_jcreate_nblocks(inode) +
-			 reiserfs_xattr_nblocks(inode, size) * 2;
-
-	reiserfs_write_lock(inode->i_sb);
-	error = journal_begin(&th, inode->i_sb, jcreate_blocks);
-	reiserfs_write_unlock(inode->i_sb);
-	if (error == 0) {
-		if (type == ACL_TYPE_ACCESS && acl) {
-			error = posix_acl_update_mode(&nop_mnt_idmap, inode,
-						      &mode, &acl);
-			if (error)
-				goto unlock;
-			update_mode = 1;
-		}
-		error = __reiserfs_set_acl(&th, inode, type, acl);
-		if (!error && update_mode)
-			inode->i_mode = mode;
-unlock:
-		reiserfs_write_lock(inode->i_sb);
-		error2 = journal_end(&th);
-		reiserfs_write_unlock(inode->i_sb);
-		if (error2)
-			error = error2;
-	}
-
-	return error;
-}
-
-/*
- * Convert from filesystem to in-memory representation.
- */
-static struct posix_acl *reiserfs_posix_acl_from_disk(const void *value, size_t size)
-{
-	const char *end = (char *)value + size;
-	int n, count;
-	struct posix_acl *acl;
-
-	if (!value)
-		return NULL;
-	if (size < sizeof(reiserfs_acl_header))
-		return ERR_PTR(-EINVAL);
-	if (((reiserfs_acl_header *) value)->a_version !=
-	    cpu_to_le32(REISERFS_ACL_VERSION))
-		return ERR_PTR(-EINVAL);
-	value = (char *)value + sizeof(reiserfs_acl_header);
-	count = reiserfs_acl_count(size);
-	if (count < 0)
-		return ERR_PTR(-EINVAL);
-	if (count == 0)
-		return NULL;
-	acl = posix_acl_alloc(count, GFP_NOFS);
-	if (!acl)
-		return ERR_PTR(-ENOMEM);
-	for (n = 0; n < count; n++) {
-		reiserfs_acl_entry *entry = (reiserfs_acl_entry *) value;
-		if ((char *)value + sizeof(reiserfs_acl_entry_short) > end)
-			goto fail;
-		acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag);
-		acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
-		switch (acl->a_entries[n].e_tag) {
-		case ACL_USER_OBJ:
-		case ACL_GROUP_OBJ:
-		case ACL_MASK:
-		case ACL_OTHER:
-			value = (char *)value +
-			    sizeof(reiserfs_acl_entry_short);
-			break;
-
-		case ACL_USER:
-			value = (char *)value + sizeof(reiserfs_acl_entry);
-			if ((char *)value > end)
-				goto fail;
-			acl->a_entries[n].e_uid = 
-				make_kuid(&init_user_ns,
-					  le32_to_cpu(entry->e_id));
-			break;
-		case ACL_GROUP:
-			value = (char *)value + sizeof(reiserfs_acl_entry);
-			if ((char *)value > end)
-				goto fail;
-			acl->a_entries[n].e_gid =
-				make_kgid(&init_user_ns,
-					  le32_to_cpu(entry->e_id));
-			break;
-
-		default:
-			goto fail;
-		}
-	}
-	if (value != end)
-		goto fail;
-	return acl;
-
-fail:
-	posix_acl_release(acl);
-	return ERR_PTR(-EINVAL);
-}
-
-/*
- * Convert from in-memory to filesystem representation.
- */
-static void *reiserfs_posix_acl_to_disk(const struct posix_acl *acl, size_t * size)
-{
-	reiserfs_acl_header *ext_acl;
-	char *e;
-	int n;
-
-	*size = reiserfs_acl_size(acl->a_count);
-	ext_acl = kmalloc(sizeof(reiserfs_acl_header) +
-						  acl->a_count *
-						  sizeof(reiserfs_acl_entry),
-						  GFP_NOFS);
-	if (!ext_acl)
-		return ERR_PTR(-ENOMEM);
-	ext_acl->a_version = cpu_to_le32(REISERFS_ACL_VERSION);
-	e = (char *)ext_acl + sizeof(reiserfs_acl_header);
-	for (n = 0; n < acl->a_count; n++) {
-		const struct posix_acl_entry *acl_e = &acl->a_entries[n];
-		reiserfs_acl_entry *entry = (reiserfs_acl_entry *) e;
-		entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag);
-		entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
-		switch (acl->a_entries[n].e_tag) {
-		case ACL_USER:
-			entry->e_id = cpu_to_le32(
-				from_kuid(&init_user_ns, acl_e->e_uid));
-			e += sizeof(reiserfs_acl_entry);
-			break;
-		case ACL_GROUP:
-			entry->e_id = cpu_to_le32(
-				from_kgid(&init_user_ns, acl_e->e_gid));
-			e += sizeof(reiserfs_acl_entry);
-			break;
-
-		case ACL_USER_OBJ:
-		case ACL_GROUP_OBJ:
-		case ACL_MASK:
-		case ACL_OTHER:
-			e += sizeof(reiserfs_acl_entry_short);
-			break;
-
-		default:
-			goto fail;
-		}
-	}
-	return (char *)ext_acl;
-
-fail:
-	kfree(ext_acl);
-	return ERR_PTR(-EINVAL);
-}
-
-/*
- * Inode operation get_posix_acl().
- *
- * inode->i_mutex: down
- * BKL held [before 2.5.x]
- */
-struct posix_acl *reiserfs_get_acl(struct inode *inode, int type, bool rcu)
-{
-	char *name, *value;
-	struct posix_acl *acl;
-	int size;
-	int retval;
-
-	if (rcu)
-		return ERR_PTR(-ECHILD);
-
-	switch (type) {
-	case ACL_TYPE_ACCESS:
-		name = XATTR_NAME_POSIX_ACL_ACCESS;
-		break;
-	case ACL_TYPE_DEFAULT:
-		name = XATTR_NAME_POSIX_ACL_DEFAULT;
-		break;
-	default:
-		BUG();
-	}
-
-	size = reiserfs_xattr_get(inode, name, NULL, 0);
-	if (size < 0) {
-		if (size == -ENODATA || size == -ENOSYS)
-			return NULL;
-		return ERR_PTR(size);
-	}
-
-	value = kmalloc(size, GFP_NOFS);
-	if (!value)
-		return ERR_PTR(-ENOMEM);
-
-	retval = reiserfs_xattr_get(inode, name, value, size);
-	if (retval == -ENODATA || retval == -ENOSYS) {
-		/*
-		 * This shouldn't actually happen as it should have
-		 * been caught above.. but just in case
-		 */
-		acl = NULL;
-	} else if (retval < 0) {
-		acl = ERR_PTR(retval);
-	} else {
-		acl = reiserfs_posix_acl_from_disk(value, retval);
-	}
-
-	kfree(value);
-	return acl;
-}
-
-/*
- * Inode operation set_posix_acl().
- *
- * inode->i_mutex: down
- * BKL held [before 2.5.x]
- */
-static int
-__reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
-		 int type, struct posix_acl *acl)
-{
-	char *name;
-	void *value = NULL;
-	size_t size = 0;
-	int error;
-
-	switch (type) {
-	case ACL_TYPE_ACCESS:
-		name = XATTR_NAME_POSIX_ACL_ACCESS;
-		break;
-	case ACL_TYPE_DEFAULT:
-		name = XATTR_NAME_POSIX_ACL_DEFAULT;
-		if (!S_ISDIR(inode->i_mode))
-			return acl ? -EACCES : 0;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (acl) {
-		value = reiserfs_posix_acl_to_disk(acl, &size);
-		if (IS_ERR(value))
-			return (int)PTR_ERR(value);
-	}
-
-	error = reiserfs_xattr_set_handle(th, inode, name, value, size, 0);
-
-	/*
-	 * Ensure that the inode gets dirtied if we're only using
-	 * the mode bits and an old ACL didn't exist. We don't need
-	 * to check if the inode is hashed here since we won't get
-	 * called by reiserfs_inherit_default_acl().
-	 */
-	if (error == -ENODATA) {
-		error = 0;
-		if (type == ACL_TYPE_ACCESS) {
-			inode_set_ctime_current(inode);
-			mark_inode_dirty(inode);
-		}
-	}
-
-	kfree(value);
-
-	if (!error)
-		set_cached_acl(inode, type, acl);
-
-	return error;
-}
-
-/*
- * dir->i_mutex: locked,
- * inode is new and not released into the wild yet
- */
-int
-reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
-			     struct inode *dir, struct dentry *dentry,
-			     struct inode *inode)
-{
-	struct posix_acl *default_acl, *acl;
-	int err = 0;
-
-	/* ACLs only get applied to files and directories */
-	if (S_ISLNK(inode->i_mode))
-		return 0;
-
-	/*
-	 * ACLs can only be used on "new" objects, so if it's an old object
-	 * there is nothing to inherit from
-	 */
-	if (get_inode_sd_version(dir) == STAT_DATA_V1)
-		goto apply_umask;
-
-	/*
-	 * Don't apply ACLs to objects in the .reiserfs_priv tree.. This
-	 * would be useless since permissions are ignored, and a pain because
-	 * it introduces locking cycles
-	 */
-	if (IS_PRIVATE(inode))
-		goto apply_umask;
-
-	err = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
-	if (err)
-		return err;
-
-	if (default_acl) {
-		err = __reiserfs_set_acl(th, inode, ACL_TYPE_DEFAULT,
-					 default_acl);
-		posix_acl_release(default_acl);
-	}
-	if (acl) {
-		if (!err)
-			err = __reiserfs_set_acl(th, inode, ACL_TYPE_ACCESS,
-						 acl);
-		posix_acl_release(acl);
-	}
-
-	return err;
-
-apply_umask:
-	/* no ACL, apply umask */
-	inode->i_mode &= ~current_umask();
-	return err;
-}
-
-/* This is used to cache the default acl before a new object is created.
- * The biggest reason for this is to get an idea of how many blocks will
- * actually be required for the create operation if we must inherit an ACL.
- * An ACL write can add up to 3 object creations and an additional file write
- * so we'd prefer not to reserve that many blocks in the journal if we can.
- * It also has the advantage of not loading the ACL with a transaction open,
- * this may seem silly, but if the owner of the directory is doing the
- * creation, the ACL may not be loaded since the permissions wouldn't require
- * it.
- * We return the number of blocks required for the transaction.
- */
-int reiserfs_cache_default_acl(struct inode *inode)
-{
-	struct posix_acl *acl;
-	int nblocks = 0;
-
-	if (IS_PRIVATE(inode))
-		return 0;
-
-	acl = get_inode_acl(inode, ACL_TYPE_DEFAULT);
-
-	if (acl && !IS_ERR(acl)) {
-		int size = reiserfs_acl_size(acl->a_count);
-
-		/* Other xattrs can be created during inode creation. We don't
-		 * want to claim too many blocks, so we check to see if we
-		 * need to create the tree to the xattrs, and then we
-		 * just want two files. */
-		nblocks = reiserfs_xattr_jcreate_nblocks(inode);
-		nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
-
-		REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
-
-		/* We need to account for writes + bitmaps for two files */
-		nblocks += reiserfs_xattr_nblocks(inode, size) * 4;
-		posix_acl_release(acl);
-	}
-
-	return nblocks;
-}
-
-/*
- * Called under i_mutex
- */
-int reiserfs_acl_chmod(struct dentry *dentry)
-{
-	struct inode *inode = d_inode(dentry);
-
-	if (IS_PRIVATE(inode))
-		return 0;
-	if (get_inode_sd_version(inode) == STAT_DATA_V1 ||
-	    !reiserfs_posixacl(inode->i_sb))
-		return 0;
-
-	return posix_acl_chmod(&nop_mnt_idmap, dentry, inode->i_mode);
-}