Since 8456a648cf44 ("slab: use struct page for slab management") nobody uses slab_page field in struct page.
Let's drop it. Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com> Acked-by: Christoph Lameter <c...@linux.com> Acked-by: David Rientjes <rient...@google.com> Acked-by: Vlastimil Babka <vba...@suse.cz> Cc: Joonsoo Kim <iamjoonsoo....@lge.com> Cc: Andi Kleen <a...@linux.intel.com> --- include/linux/mm_types.h | 1 - mm/slab.c | 17 +++-------------- 2 files changed, 3 insertions(+), 15 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 0038ac7466fd..58620ac7f15c 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -140,7 +140,6 @@ struct page { #endif }; - struct slab *slab_page; /* slab fields */ struct rcu_head rcu_head; /* Used by SLAB * when destroying via RCU */ diff --git a/mm/slab.c b/mm/slab.c index 200e22412a16..649044f26e5d 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1888,21 +1888,10 @@ static void slab_destroy(struct kmem_cache *cachep, struct page *page) freelist = page->freelist; slab_destroy_debugcheck(cachep, page); - if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) { - struct rcu_head *head; - - /* - * RCU free overloads the RCU head over the LRU. - * slab_page has been overloeaded over the LRU, - * however it is not used from now on so that - * we can use it safely. - */ - head = (void *)&page->rcu_head; - call_rcu(head, kmem_rcu_free); - - } else { + if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) + call_rcu(&page->rcu_head, kmem_rcu_free); + else kmem_freepages(cachep, page); - } /* * From now on, we don't use freelist -- 2.5.0 -- 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/