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    Subject[patch 18/87] mm: SLUB fix reclaim_state
    2.6.29-stable review patch.  If anyone has any objections, please let us know.

    ------------------

    From: Nick Piggin <npiggin@suse.de>

    commit 1eb5ac6466d4be7b15b38ce3ab709600f1bc891f upstream.

    SLUB does not correctly account reclaim_state.reclaimed_slab, so it will
    break memory reclaim. Account it like SLAB does.

    Cc: linux-mm@kvack.org
    Cc: Matt Mackall <mpm@selenic.com>
    Acked-by: Christoph Lameter <cl@linux-foundation.org>
    Signed-off-by: Nick Piggin <npiggin@suse.de>
    Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    mm/slub.c | 3 +++
    1 file changed, 3 insertions(+)

    --- a/mm/slub.c
    +++ b/mm/slub.c
    @@ -9,6 +9,7 @@
    */

    #include <linux/mm.h>
    +#include <linux/swap.h> /* struct reclaim_state */
    #include <linux/module.h>
    #include <linux/bit_spinlock.h>
    #include <linux/interrupt.h>
    @@ -1175,6 +1176,8 @@ static void __free_slab(struct kmem_cach

    __ClearPageSlab(page);
    reset_page_mapcount(page);
    + if (current->reclaim_state)
    + current->reclaim_state->reclaimed_slab += pages;
    __free_pages(page, order);
    }




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