s390/mm: remove unused cmma functions

The last user of arch_set_page_states(), arch_set_page_nodat() and
arch_test_page_nodat() was removed in commit 394216275c7d
("s390: remove broken hibernate / power management support"),
let's remove these functions.

Signed-off-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20210806075430.6103-1-david@redhat.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 3ba945c6b9dc54fef82526b650b986c40f39e2d3..d98d17a36c7b83d2398bb33b2100e0c73968c144 100644 (file)
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -144,9 +144,6 @@ struct page;
 void arch_free_page(struct page *page, int order);
 void arch_alloc_page(struct page *page, int order);
 void arch_set_page_dat(struct page *page, int order);
-void arch_set_page_nodat(struct page *page, int order);
-int arch_test_page_nodat(struct page *page);
-void arch_set_page_states(int make_stable);
 
 static inline int devmem_is_allowed(unsigned long pfn)
 {

diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index 68b153083a9210ef0eddaa6efbe39ee6f5e372b8..18a6381097a90fcc912796d19696c7f1a04cbbf4 100644 (file)
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -228,46 +228,3 @@ void arch_set_page_dat(struct page *page, int order)
                return;
        set_page_stable_dat(page, order);
 }
-
-void arch_set_page_nodat(struct page *page, int order)
-{
-       if (cmma_flag < 2)
-               return;
-       set_page_stable_nodat(page, order);
-}
-
-int arch_test_page_nodat(struct page *page)
-{
-       unsigned char state;
-
-       if (cmma_flag < 2)
-               return 0;
-       state = get_page_state(page);
-       return !!(state & 0x20);
-}
-
-void arch_set_page_states(int make_stable)
-{
-       unsigned long flags, order, t;
-       struct list_head *l;
-       struct page *page;
-       struct zone *zone;
-
-       if (!cmma_flag)
-               return;
-       if (make_stable)
-               drain_local_pages(NULL);
-       for_each_populated_zone(zone) {
-               spin_lock_irqsave(&zone->lock, flags);
-               for_each_migratetype_order(order, t) {
-                       list_for_each(l, &zone->free_area[order].free_list[t]) {
-                               page = list_entry(l, struct page, lru);
-                               if (make_stable)
-                                       set_page_stable_dat(page, order);
-                               else
-                                       set_page_unused(page, order);
-                       }
-               }
-               spin_unlock_irqrestore(&zone->lock, flags);
-       }
-}