Re: Distributed storage.

[Jens Axboe <jens.axboe@oracle.com>]

On Mon, Aug 13 2007, Jens Axboe wrote:
> > You did not comment on the one about putting the bio destructor in 
> > the ->endio handler, which looks dead simple.  The majority of cases 
> > just use the default endio handler and the default destructor.  Of the 
> > remaining cases, where a specialized destructor is needed, typically a 
> > specialized endio handler is too, so combining is free.  There are few 
> > if any cases where a new specialized endio handler would need to be 
> > written.
> 
> We could do that without too much work, I agree.

But that idea fails as well, since reference counts and IO completion
are two completely seperate entities. So unless end IO just happens to
be the last user holding a reference to the bio, you cannot free it.

-- 
Jens Axboe