Re: [PATCH] nommu: fix kobjsize() for SLOB and SLUB

David Howells
2008-05-29T13:16:00Z

Christoph Lameter <clameter@sgi.com> wrote:

> Could the nommu people either tell us what this is all about? Or junk the
> code. This looks very wrong.

ELF-FDPIC is currently using kobjsize() so that it can expand the heap/stack
segment to fill up the entirety of its allocation. It's probably worth
dropping that, though.

NOMMU mmap() is using kobjsize()/ksize() to keep track of the number of bytes
allocated and the amount of dead space. We can probably ditch that too.

However, fs/proc/task_nommu.c uses kobjsize() quite a bit to determine how
much metadata space a process is carrying around. We could just use sizeof(),
I suppose, and not bother calculating the slack.

David