Example #1
0
int f2fs_truncate(struct inode *inode, bool lock)
{
	int err;

	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
				S_ISLNK(inode->i_mode)))
		return 0;

	trace_f2fs_truncate(inode);

	/* we should check inline_data size */
	if (f2fs_has_inline_data(inode) && !f2fs_may_inline_data(inode)) {
		err = f2fs_convert_inline_inode(inode);
		if (err)
			return err;
	}

	err = truncate_blocks(inode, i_size_read(inode), lock);
	if (err)
		return err;

	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
	mark_inode_dirty(inode);
	return 0;
}
Example #2
0
int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
{
	struct inode *inode = d_inode(dentry);
	struct f2fs_inode_info *fi = F2FS_I(inode);
	int err;

	err = inode_change_ok(inode, attr);
	if (err)
		return err;

	if (attr->ia_valid & ATTR_SIZE) {
		if (f2fs_encrypted_inode(inode) &&
				fscrypt_get_encryption_info(inode))
			return -EACCES;

		if (attr->ia_size <= i_size_read(inode)) {
			truncate_setsize(inode, attr->ia_size);
			err = f2fs_truncate(inode, true);
			if (err)
				return err;
			f2fs_balance_fs(F2FS_I_SB(inode), true);
		} else {
			/*
			 * do not trim all blocks after i_size if target size is
			 * larger than i_size.
			 */
			truncate_setsize(inode, attr->ia_size);

			/* should convert inline inode here */
			if (!f2fs_may_inline_data(inode)) {
				err = f2fs_convert_inline_inode(inode);
				if (err)
					return err;
			}
			inode->i_mtime = inode->i_ctime = CURRENT_TIME;
		}
	}

	__setattr_copy(inode, attr);

	if (attr->ia_valid & ATTR_MODE) {
		err = posix_acl_chmod(inode, get_inode_mode(inode));
		if (err || is_inode_flag_set(fi, FI_ACL_MODE)) {
			inode->i_mode = fi->i_acl_mode;
			clear_inode_flag(fi, FI_ACL_MODE);
		}
	}

	mark_inode_dirty(inode);
	return err;
}
Example #3
0
File: file.c Project: infidel/linux
void f2fs_truncate(struct inode *inode)
{
    if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
            S_ISLNK(inode->i_mode)))
        return;

    trace_f2fs_truncate(inode);

    /* we should check inline_data size */
    if (f2fs_has_inline_data(inode) && !f2fs_may_inline_data(inode)) {
        if (f2fs_convert_inline_inode(inode))
            return;
    }

    if (!truncate_blocks(inode, i_size_read(inode), true)) {
        inode->i_mtime = inode->i_ctime = CURRENT_TIME;
        mark_inode_dirty(inode);
    }
}
static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
{
	struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
	nid_t ino;
	struct inode *inode;
	bool nid_free = false;
	int err;

	inode = new_inode(dir->i_sb);
	if (!inode)
		return ERR_PTR(-ENOMEM);

	f2fs_lock_op(sbi);
	if (!alloc_nid(sbi, &ino)) {
		f2fs_unlock_op(sbi);
		err = -ENOSPC;
		goto fail;
	}
	f2fs_unlock_op(sbi);

	inode_init_owner(inode, dir, mode);

	inode->i_ino = ino;
	inode->i_blocks = 0;
	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
	inode->i_generation = sbi->s_next_generation++;

	err = insert_inode_locked(inode);
	if (err) {
		err = -EINVAL;
		nid_free = true;
		goto out;
	}

	/* If the directory encrypted, then we should encrypt the inode. */
	if (f2fs_encrypted_inode(dir) && f2fs_may_encrypt(inode))
		f2fs_set_encrypted_inode(inode);

	if (f2fs_may_inline_data(inode))
		set_inode_flag(F2FS_I(inode), FI_INLINE_DATA);
	if (f2fs_may_inline_dentry(inode))
		set_inode_flag(F2FS_I(inode), FI_INLINE_DENTRY);

	stat_inc_inline_inode(inode);
	stat_inc_inline_dir(inode);

	trace_f2fs_new_inode(inode, 0);
	mark_inode_dirty(inode);
	return inode;

out:
	clear_nlink(inode);
	unlock_new_inode(inode);
fail:
	trace_f2fs_new_inode(inode, err);
	make_bad_inode(inode);
	iput(inode);
	if (nid_free)
		alloc_nid_failed(sbi, ino);
	return ERR_PTR(err);
}
Example #5
0
File: namei.c Project: mdamt/linux
static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
{
	struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
	nid_t ino;
	struct inode *inode;
	bool nid_free = false;
	int err;

	inode = new_inode(dir->i_sb);
	if (!inode)
		return ERR_PTR(-ENOMEM);

	f2fs_lock_op(sbi);
	if (!alloc_nid(sbi, &ino)) {
		f2fs_unlock_op(sbi);
		err = -ENOSPC;
		goto fail;
	}
	f2fs_unlock_op(sbi);

	nid_free = true;

	inode_init_owner(inode, dir, mode);

	inode->i_ino = ino;
	inode->i_blocks = 0;
	inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode);
	inode->i_generation = sbi->s_next_generation++;

	err = insert_inode_locked(inode);
	if (err) {
		err = -EINVAL;
		goto fail;
	}

	err = dquot_initialize(inode);
	if (err)
		goto fail_drop;

	err = dquot_alloc_inode(inode);
	if (err)
		goto fail_drop;

	/* If the directory encrypted, then we should encrypt the inode. */
	if (f2fs_encrypted_inode(dir) && f2fs_may_encrypt(inode))
		f2fs_set_encrypted_inode(inode);

	set_inode_flag(inode, FI_NEW_INODE);

	if (test_opt(sbi, INLINE_XATTR))
		set_inode_flag(inode, FI_INLINE_XATTR);
	if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
		set_inode_flag(inode, FI_INLINE_DATA);
	if (f2fs_may_inline_dentry(inode))
		set_inode_flag(inode, FI_INLINE_DENTRY);

	f2fs_init_extent_tree(inode, NULL);

	stat_inc_inline_xattr(inode);
	stat_inc_inline_inode(inode);
	stat_inc_inline_dir(inode);

	trace_f2fs_new_inode(inode, 0);
	return inode;

fail:
	trace_f2fs_new_inode(inode, err);
	make_bad_inode(inode);
	if (nid_free)
		set_inode_flag(inode, FI_FREE_NID);
	iput(inode);
	return ERR_PTR(err);
fail_drop:
	trace_f2fs_new_inode(inode, err);
	dquot_drop(inode);
	inode->i_flags |= S_NOQUOTA;
	if (nid_free)
		set_inode_flag(inode, FI_FREE_NID);
	clear_nlink(inode);
	unlock_new_inode(inode);
	iput(inode);
	return ERR_PTR(err);
}