static int gfs_fill_super_info(struct gfs_super_info *si, u32 ino)
{
struct gfs_inode_info *inode;
struct gfs_super *raw;
struct buffer_head *bh;
int err;
mutex_init(&si->s_mutex);
inode = gfs_iget_info(si->s_vfs_sb, ino);
PDEBUG("ino=%d PTR_ERR=%li\n", (int) ino, (long)PTR_ERR(inode));
if (IS_ERR(inode))
return PTR_ERR(inode);
si->s_super_inode = inode;
bh = get_inode_data(inode,0);
if(!bh)
return -EIO;
MARK();
raw = (struct gfs_super *) (bh->b_data + sizeof(struct gfs_inode));
err = init_super_from_raw(si, raw);
put_inode_data(inode,0);
return err;
}
int gfs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
struct gfs_inode_info *gfs_inode = GFS_INODE(inode);
struct gfs_inode *raw_inode;
struct buffer_head *bh = get_inode_data(gfs_inode, 1);
if(!bh) {
PDEBUG("-EIO\n");
return -EIO;
}
raw_inode = (struct gfs_inode *)bh->b_data;
if(inode->i_ino == 0) {
struct gfs_super *raw_super = (struct gfs_super *) (bh->b_data + sizeof(struct gfs_inode));
init_raw_from_super(raw_super, inode->i_sb->s_fs_info);
}
gfs_init_raw_from_inode(raw_inode, gfs_inode);
PDEBUG("Writing inode %ld %o %o\n", inode->i_ino, le32_to_cpu(raw_inode->i_mode), inode ->i_mode);
sync_inode_data(gfs_inode);
put_inode_data(gfs_inode, 1);
return 0;
}
struct inode *gfs_iget_new(struct gfs_super_info *sb)
{
struct gfs_inode_info *inode;
bool err = 0;
u32 ino = grab_free_ino(sb, &err);
if(err) {
gfs_info("No more free space\n");
return ERR_PTR(-ENOMEM); /* TODO: Really ENOMEM ?*/
}
BUG_ON(!__is_bit_used(sb->s_inode_map, ino));
inode = gfs_iget_info(sb->s_vfs_sb, ino);
if(IS_ERR(inode)) {
PDEBUG("get info\n");
return ERR_CAST(inode);
}
BUG_ON(inode->vfs_inode.i_state & I_NEW);
if(!get_inode_data(inode,1))
goto err;
RAW_INODE(inode)->i_flags = cpu_to_le32(GI_INO_USED);
RAW_INODE(inode)->i_nlink = cpu_to_le32(1);
set_nlink(VFS_INODE(inode), 1);
put_inode_data(inode, 1);
gfs_dbg("New ino: %ld %i\n",VFS_INODE(inode)->i_ino, VFS_INODE(inode)->i_nlink);
return VFS_INODE(inode);
err:
gfs_put_inode(inode);
return ERR_PTR(-EIO);
}
int gfs_junk_inode(struct gfs_inode *inode)
{
if(!get_inode_data(inode, 1))
return -ENOMEM;
BUG_ON(inode->i_flags & GI_INO_JUNK);
inode->i_flags |= GI_INO_JUNK;
mark_inode_dirty(VFS_INODE(inode));
put_inode_data(inode, 1);
return 0;
}
static struct gfs_inode_info *gfs_iget_info(struct super_block *sb, u32 ino)
{
struct gfs_inode_info *gfs_inode;
struct gfs_inode *raw_inode;
struct buffer_head *bh;
struct inode *vfs_inode;
PDEBUG("ino=%d\n", (int)ino);
vfs_inode = iget_locked(sb, ino);
if(!vfs_inode)
return ERR_PTR(-ENOMEM);
gfs_inode = GFS_INODE(vfs_inode);
if(vfs_inode->i_state & I_NEW) {
bh = get_inode_data(gfs_inode, 0);
if(!bh) {
PDEBUG("IO\n");
return ERR_PTR(-EIO);
}
raw_inode = (struct gfs_inode*)bh->b_data;
PDEBUG("Raw Inode %o\n", raw_inode->i_mode);
gfs_init_inode_from_raw(gfs_inode, RAW_INODE(gfs_inode));
gfs_inode->i_ex_inode = NULL;
gfs_inode->i_exino = 0xabcd;
put_inode_data(gfs_inode, 0);
unlock_new_inode(vfs_inode);
}
print_inode(gfs_inode);
return gfs_inode;
}
void put_inode( struct m_inode *inode )
{
put_inode_itable( inode );
put_inode_data( inode );
free_memery_inode( inode );
}