On Tue, 25 Sep 2012, Christoph Lameter wrote: > > No cache should ever pass those as a creation flags. We can just ignore > > this bit if it happens to be passed (such as when duplicating a cache in > > the kmem memcg patches) > > Acked-by: Christoph Lameter <c...@linux.com> >
Nack, this is already handled by CREATE_MASK in the mm/slab.c allocator; the flag extensions beyond those defined in the generic slab.h header are implementation defined. It may be true that SLAB uses a bit only internally (and already protects it with a BUG_ON() in __kmem_cache_create()) but that doesn't mean other implementations can't use such a flag that would be a no-op on another allocator. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
