mm: dump page when hitting a VM_BUG_ON using VM_BUG_ON_PAGE

[platform/adaptation/renesas_rcar/renesas_kernel.git] / mm / slub.c

diff --git a/mm/slub.c b/mm/slub.c
index 545a170..34bb8c6 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1559,7 +1559,7 @@ static inline void *acquire_slab(struct kmem_cache *s,
                new.freelist = freelist;
        }
 
-       VM_BUG_ON(new.frozen);
+       VM_BUG_ON_PAGE(new.frozen, &new);
        new.frozen = 1;
 
        if (!__cmpxchg_double_slab(s, page,
@@ -1812,7 +1812,7 @@ static void deactivate_slab(struct kmem_cache *s, struct page *page,
                        set_freepointer(s, freelist, prior);
                        new.counters = counters;
                        new.inuse--;
-                       VM_BUG_ON(!new.frozen);
+                       VM_BUG_ON_PAGE(!new.frozen, &new);
 
                } while (!__cmpxchg_double_slab(s, page,
                        prior, counters,
@@ -1840,7 +1840,7 @@ redo:
 
        old.freelist = page->freelist;
        old.counters = page->counters;
-       VM_BUG_ON(!old.frozen);
+       VM_BUG_ON_PAGE(!old.frozen, &old);
 
        /* Determine target state of the slab */
        new.counters = old.counters;
@@ -1952,7 +1952,7 @@ static void unfreeze_partials(struct kmem_cache *s,
 
                        old.freelist = page->freelist;
                        old.counters = page->counters;
-                       VM_BUG_ON(!old.frozen);
+                       VM_BUG_ON_PAGE(!old.frozen, &old);
 
                        new.counters = old.counters;
                        new.freelist = old.freelist;
@@ -2225,7 +2225,7 @@ static inline void *get_freelist(struct kmem_cache *s, struct page *page)
                counters = page->counters;
 
                new.counters = counters;
-               VM_BUG_ON(!new.frozen);
+               VM_BUG_ON_PAGE(!new.frozen, &new);
 
                new.inuse = page->objects;
                new.frozen = freelist != NULL;
@@ -2319,7 +2319,7 @@ load_freelist:
         * page is pointing to the page from which the objects are obtained.
         * That page must be frozen for per cpu allocations to work.
         */
-       VM_BUG_ON(!c->page->frozen);
+       VM_BUG_ON_PAGE(!c->page->frozen, c->page);
        c->freelist = get_freepointer(s, freelist);
        c->tid = next_tid(c->tid);
        local_irq_restore(flags);