[PATCH] mm/slub: remove unused kmem_cache_order_objects max

From: Miaohe Lin
Date: Fri Apr 29 2022 - 05:05:54 EST


max field holds the largest slab order that was ever used for a slab cache.
But it's unused now. Remove it.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
include/linux/slub_def.h | 1 -
mm/slub.c | 2 --
2 files changed, 3 deletions(-)

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 33c5c0e3bd8d..f9c68a9dac04 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -105,7 +105,6 @@ struct kmem_cache {
struct kmem_cache_order_objects oo;

/* Allocation and freeing of slabs */
- struct kmem_cache_order_objects max;
struct kmem_cache_order_objects min;
gfp_t allocflags; /* gfp flags to use on each alloc */
int refcount; /* Refcount for slab cache destroy */
diff --git a/mm/slub.c b/mm/slub.c
index 1f699ddfff7f..e5535020e0fd 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4162,8 +4162,6 @@ static int calculate_sizes(struct kmem_cache *s)
*/
s->oo = oo_make(order, size);
s->min = oo_make(get_order(size), size);
- if (oo_objects(s->oo) > oo_objects(s->max))
- s->max = s->oo;

return !!oo_objects(s->oo);
}
--
2.23.0