void udf_free_inode(struct inode * inode)
{
struct super_block * sb = inode->i_sb;
int is_directory;
unsigned long ino;
ino = inode->i_ino;
/*
* Note: we must free any quota before locking the superblock,
* as writing the quota to disk may need the lock as well.
*/
DQUOT_FREE_INODE(inode);
DQUOT_DROP(inode);
lock_super(sb);
is_directory = S_ISDIR(inode->i_mode);
clear_inode(inode);
if (UDF_SB_LVIDBH(sb))
{
if (is_directory)
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);
mark_buffer_dirty(UDF_SB_LVIDBH(sb));
}
unlock_super(sb);
udf_free_blocks(sb, NULL, UDF_I_LOCATION(inode), 0, 1);
}
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;
}
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;
}
