Пример #1
0
struct inode * udf_new_inode (struct inode *dir, int mode, int * err)
{
	struct super_block *sb;
	struct inode * inode;
	int block;
	Uint32 start = UDF_I_LOCATION(dir).logicalBlockNum;

	sb = dir->i_sb;
	inode = new_inode(sb);

	if (!inode)
	{
		*err = -ENOMEM;
		return NULL;
	}
	*err = -ENOSPC;

	block = udf_new_block(dir->i_sb, NULL, UDF_I_LOCATION(dir).partitionReferenceNum,
		start, err);
	if (*err)
	{
		iput(inode);
		return NULL;
	}
	lock_super(sb);

	if (UDF_SB_LVIDBH(sb))
	{
		struct LogicalVolHeaderDesc *lvhd;
		Uint64 uniqueID;
		lvhd = (struct LogicalVolHeaderDesc *)(UDF_SB_LVID(sb)->logicalVolContentsUse);
		if (S_ISDIR(mode))
			UDF_SB_LVIDIU(sb)->numDirs =
				cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + 1);
		else
			UDF_SB_LVIDIU(sb)->numFiles =
				cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + 1);
		UDF_I_UNIQUE(inode) = uniqueID = le64_to_cpu(lvhd->uniqueID);
		if (!(++uniqueID & 0x00000000FFFFFFFFUL))
			uniqueID += 16;
		lvhd->uniqueID = cpu_to_le64(uniqueID);
		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
	}
	inode->i_mode = mode;
	inode->i_uid = current->fsuid;
	if (dir->i_mode & S_ISGID)
	{
		inode->i_gid = dir->i_gid;
		if (S_ISDIR(mode))
			mode |= S_ISGID;
	}
	else
		inode->i_gid = current->fsgid;

	UDF_I_LOCATION(inode).logicalBlockNum = block;
	UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
	inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0);
	inode->i_blksize = PAGE_SIZE;
	inode->i_blocks = 0;
	UDF_I_LENEATTR(inode) = 0;
	UDF_I_LENALLOC(inode) = 0;
	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE))
	{
		UDF_I_EXTENDED_FE(inode) = 1;
		UDF_UPDATE_UDFREV(inode->i_sb, UDF_VERS_USE_EXTENDED_FE);
	}
	else
		UDF_I_EXTENDED_FE(inode) = 0;
	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
		UDF_I_ALLOCTYPE(inode) = ICB_FLAG_AD_IN_ICB;
	else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
		UDF_I_ALLOCTYPE(inode) = ICB_FLAG_AD_SHORT;
	else
		UDF_I_ALLOCTYPE(inode) = ICB_FLAG_AD_LONG;
	inode->i_mtime = inode->i_atime = inode->i_ctime =
		UDF_I_CRTIME(inode) = CURRENT_TIME;
	UDF_I_UMTIME(inode) = UDF_I_UCTIME(inode) =
		UDF_I_UCRTIME(inode) = CURRENT_UTIME;
	UDF_I_NEW_INODE(inode) = 1;
	insert_inode_hash(inode);
	mark_inode_dirty(inode);

	unlock_super(sb);
	if (DQUOT_ALLOC_INODE(inode))
	{
		DQUOT_DROP(inode);
		inode->i_flags |= S_NOQUOTA;
		inode->i_nlink = 0;
		iput(inode);
		*err = -EDQUOT;
		return NULL;
	}

	*err = 0;
	return inode;
}
Пример #2
0
struct inode * udf_new_inode (struct inode *dir, int mode, int * err)
{
	struct super_block *sb = dir->i_sb;
	struct udf_sb_info *sbi = UDF_SB(sb);
	struct inode * inode;
	int block;
	uint32_t start = UDF_I_LOCATION(dir).logicalBlockNum;

	inode = new_inode(sb);

	if (!inode)
	{
		*err = -ENOMEM;
		return NULL;
	}
	*err = -ENOSPC;

	block = udf_new_block(dir->i_sb, NULL, UDF_I_LOCATION(dir).partitionReferenceNum,
		start, err);
	if (*err)
	{
		iput(inode);
		return NULL;
	}

	lock_udf_alloc_sem(sbi);
	UDF_I_UNIQUE(inode) = 0;
	UDF_I_LENEXTENTS(inode) = 0;
	UDF_I_NEXT_ALLOC_BLOCK(inode) = 0;
	UDF_I_NEXT_ALLOC_GOAL(inode) = 0;
	UDF_I_STRAT4096(inode) = 0;
	if (UDF_SB_LVIDBH(sb))
	{
		struct logicalVolHeaderDesc *lvhd;
		uint64_t uniqueID;
		lvhd = (struct logicalVolHeaderDesc *)(UDF_SB_LVID(sb)->logicalVolContentsUse);
		if (S_ISDIR(mode))
			UDF_SB_LVIDIU(sb)->numDirs =
				cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numDirs) + 1);
		else
			UDF_SB_LVIDIU(sb)->numFiles =
				cpu_to_le32(le32_to_cpu(UDF_SB_LVIDIU(sb)->numFiles) + 1);
		UDF_I_UNIQUE(inode) = uniqueID = le64_to_cpu(lvhd->uniqueID);
		if (!(++uniqueID & 0x00000000FFFFFFFFUL))
			uniqueID += 16;
		lvhd->uniqueID = cpu_to_le64(uniqueID);
		mark_buffer_dirty(UDF_SB_LVIDBH(sb));
	}
	inode->i_mode = mode;
	inode->i_uid = current->fsuid;
	if (dir->i_mode & S_ISGID)
	{
		inode->i_gid = dir->i_gid;
		if (S_ISDIR(mode))
			mode |= S_ISGID;
	}
	else
		inode->i_gid = current->fsgid;

	UDF_I_LOCATION(inode).logicalBlockNum = block;
	UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum;
	inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0);
	inode->i_blksize = PAGE_SIZE;
	inode->i_blocks = 0;
	UDF_I_LENEATTR(inode) = 0;
	UDF_I_LENALLOC(inode) = 0;
	UDF_I_USE(inode) = 0;
	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_EXTENDED_FE))
	{
		UDF_I_EFE(inode) = 1;
		UDF_UPDATE_UDFREV(inode->i_sb, UDF_VERS_USE_EXTENDED_FE);
		UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL);
		memset(UDF_I_DATA(inode), 0x00, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry));
	}
	else
	{
		UDF_I_EFE(inode) = 0;
		UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL);
		memset(UDF_I_DATA(inode), 0x00, inode->i_sb->s_blocksize - sizeof(struct fileEntry));
	}
	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB))
		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
	else if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_SHORT;
	else
		UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_LONG;
	inode->i_mtime = inode->i_atime = inode->i_ctime =
		UDF_I_CRTIME(inode) = current_fs_time(inode->i_sb);
	insert_inode_hash(inode);
	mark_inode_dirty(inode);
	unlock_udf_alloc_sem(sbi);

	if (DQUOT_ALLOC_INODE(inode))
	{
		DQUOT_DROP(inode);
		inode->i_flags |= S_NOQUOTA;
		inode->i_nlink = 0;
		iput(inode);
		*err = -EDQUOT;
		return NULL;
	}

	*err = 0;
	return inode;
}