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

From: David Howells
Date: Thu May 29 2008 - 09:16:01 EST



Christoph Lameter <clameter@xxxxxxx> 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
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