On Wed, 25 Apr 2001, Andreas Dilger wrote:
> Al writes:
> > It's not a fscking rocket science - encapsulate accesses to ->u.foofs_i
> > into inlined function, find ->read_inode, find places that do get_empty_inode
>
> OK, I was doing this for the ext3 port I'm working on for 2.4, and ran into
> a snag. In the ext3_inode_info, there is a list_head. However, if this is
> moved into a separate slab struct, it is now impossible to locate the inode
> from the offset in the slab struct. When I was checking the size of each
> inode_info struct, I noticed several others that had list_heads in them.
> One solution is that we store list_heads in the inode proper, after generic_ip.
If you need to go from ext3_inode_info to inode - put the pointer into the
thing and be done with that. No need to bump ->i_count - fs-private
part dies before inode itself.
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