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    SubjectRe: [PATCH] nommu: fix kobjsize() for SLOB and SLUB
    Date
    Pekka J Enberg <penberg@cs.helsinki.fi> wrote:

    > From: Christoph Lameter <clameter@sgi.com>
    >
    > As reported by Paul Mundt, kobjsize() does not work properly with SLOB and SLUB
    > that re-use parts of struct page for their own purposes. Fix it up by using
    > compound_order() for compound pages that don't have PageSlab set.
    >
    > Reported-by: Paul Mundt <lethal@linux-sh.org>
    > Cc: Christoph Lameter <clameter@sgi.com>
    > Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
    > ---
    > I kept the original object size calculation for non-compound pages in this
    > version. It looks like the nommu code uses kobjsize() for all sorts of
    > interesting things.

    Works for SLAB and SLUB. SLOB breaks well before getting to anything these
    patches affect.

    Acked-by: David Howells <dhowells@redhat.com>


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