Re: Getting FS access events

[Alexander Viro]

On Tue, 15 May 2001, H. Peter Anvin wrote:

> Alexander Viro wrote:
> > >
> > > What else could it be, since it's a "struct inode *"?  NULL?
> > 
> > struct block_device *, for one thing. We'll have to do that as soon
> > as we do block devices in pagecache.
> > 
> 
> How would you know what datatype it is?  A union?  Making "struct
> block_device *" a "struct inode *" in a nonmounted filesystem?  In a
> devfs?  (Seriously.  Being able to do these kinds of data-structural
> equivalence is IMO the nice thing about devfs & co...)

void *.

Look, methods of your address_space certainly know what they hell they
are dealing with. Just as autofs_root_readdir() knows what inode->u.generic_ip
really points to.

Anybody else has no business to care about the contents of ->host.