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    Subject[S+Q2 07/19] slub: Allow removal of slab caches during boot
    If a slab cache is removed before we have setup sysfs then simply skip over
    the sysfs handling.

    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Roland Dreier <rdreier@cisco.com>
    Signed-off-by: Christoph Lameter <cl@linux-foundation.org>

    ---
    mm/slub.c | 7 +++++++
    1 file changed, 7 insertions(+)

    Index: linux-2.6/mm/slub.c
    ===================================================================
    --- linux-2.6.orig/mm/slub.c 2010-07-06 15:13:48.000000000 -0500
    +++ linux-2.6/mm/slub.c 2010-07-06 15:15:27.000000000 -0500
    @@ -4507,6 +4507,13 @@ static int sysfs_slab_add(struct kmem_ca

    static void sysfs_slab_remove(struct kmem_cache *s)
    {
    + if (slab_state < SYSFS)
    + /*
    + * Sysfs has not been setup yet so no need to remove the
    + * cache from sysfs.
    + */
    + return;
    +
    kobject_uevent(&s->kobj, KOBJ_REMOVE);
    kobject_del(&s->kobj);
    kobject_put(&s->kobj);


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