diff options
Diffstat (limited to 'mm/slub.c')
-rw-r--r-- | mm/slub.c | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/mm/slub.c b/mm/slub.c index 6c91324f9370..7277413ebc8b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -254,11 +254,10 @@ static inline void *get_freepointer_safe(struct kmem_cache *s, void *object) { void *p; -#ifdef CONFIG_DEBUG_PAGEALLOC + if (!debug_pagealloc_enabled()) + return get_freepointer(s, object); + probe_kernel_read(&p, (void **)(object + s->offset), sizeof(p)); -#else - p = get_freepointer(s, object); -#endif return p; } @@ -951,14 +950,14 @@ static int on_freelist(struct kmem_cache *s, struct page *page, void *search) max_objects = MAX_OBJS_PER_PAGE; if (page->objects != max_objects) { - slab_err(s, page, "Wrong number of objects. Found %d but " - "should be %d", page->objects, max_objects); + slab_err(s, page, "Wrong number of objects. Found %d but should be %d", + page->objects, max_objects); page->objects = max_objects; slab_fix(s, "Number of objects adjusted."); } if (page->inuse != page->objects - nr) { - slab_err(s, page, "Wrong object count. Counter is %d but " - "counted were %d", page->inuse, page->objects - nr); + slab_err(s, page, "Wrong object count. Counter is %d but counted were %d", + page->inuse, page->objects - nr); page->inuse = page->objects - nr; slab_fix(s, "Object count adjusted."); } @@ -1118,8 +1117,8 @@ static inline int free_consistency_checks(struct kmem_cache *s, if (unlikely(s != page->slab_cache)) { if (!PageSlab(page)) { - slab_err(s, page, "Attempt to free object(0x%p) " - "outside of slab", object); + slab_err(s, page, "Attempt to free object(0x%p) outside of slab", + object); } else if (!page->slab_cache) { pr_err("SLUB <none>: no slab for object 0x%p.\n", object); @@ -1427,7 +1426,7 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node) */ alloc_gfp = (flags | __GFP_NOWARN | __GFP_NORETRY) & ~__GFP_NOFAIL; if ((alloc_gfp & __GFP_DIRECT_RECLAIM) && oo_order(oo) > oo_order(s->min)) - alloc_gfp = (alloc_gfp | __GFP_NOMEMALLOC) & ~__GFP_DIRECT_RECLAIM; + alloc_gfp = (alloc_gfp | __GFP_NOMEMALLOC) & ~(__GFP_RECLAIM|__GFP_NOFAIL); page = alloc_slab_page(s, alloc_gfp, node, oo); if (unlikely(!page)) { @@ -1540,7 +1539,8 @@ static void __free_slab(struct kmem_cache *s, struct page *page) page_mapcount_reset(page); if (current->reclaim_state) current->reclaim_state->reclaimed_slab += pages; - __free_kmem_pages(page, order); + memcg_uncharge_slab(page, order, s); + __free_pages(page, order); } #define need_reserve_slab_rcu \ @@ -3439,10 +3439,9 @@ static int kmem_cache_open(struct kmem_cache *s, unsigned long flags) free_kmem_cache_nodes(s); error: if (flags & SLAB_PANIC) - panic("Cannot create slab %s size=%lu realsize=%u " - "order=%u offset=%u flags=%lx\n", - s->name, (unsigned long)s->size, s->size, - oo_order(s->oo), s->offset, flags); + panic("Cannot create slab %s size=%lu realsize=%u order=%u offset=%u flags=%lx\n", + s->name, (unsigned long)s->size, s->size, + oo_order(s->oo), s->offset, flags); return -EINVAL; } |