mm, dax: fix DAX deadlocks

[firefly-linux-kernel-4.4.55.git] / mm / slub.c

diff --git a/mm/slub.c b/mm/slub.c
index 3efcdc02082c6b6da37aee479391022542234177..f614b5dc396bc17b43cebacd97383243bbb03b99 100644 (file)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1334,7 +1334,7 @@ static inline struct page *alloc_slab_page(struct kmem_cache *s,
        if (node == NUMA_NO_NODE)
                page = alloc_pages(flags, order);
        else
-               page = alloc_pages_exact_node(node, flags, order);
+               page = __alloc_pages_node(node, flags, order);
 
        if (!page)
                memcg_uncharge_slab(s, order);
@@ -1362,6 +1362,8 @@ static struct page *allocate_slab(struct kmem_cache *s, gfp_t flags, int node)
         * so we fall-back to the minimum order allocation.
         */
        alloc_gfp = (flags | __GFP_NOWARN | __GFP_NORETRY) & ~__GFP_NOFAIL;
+       if ((alloc_gfp & __GFP_WAIT) && oo_order(oo) > oo_order(s->min))
+               alloc_gfp = (alloc_gfp | __GFP_NOMEMALLOC) & ~__GFP_WAIT;
 
        page = alloc_slab_page(s, alloc_gfp, node, oo);
        if (unlikely(!page)) {
@@ -5283,7 +5285,7 @@ static int sysfs_slab_add(struct kmem_cache *s)
        s->kobj.kset = cache_kset(s);
        err = kobject_init_and_add(&s->kobj, &slab_ktype, NULL, "%s", name);
        if (err)
-               goto out_put_kobj;
+               goto out;
 
        err = sysfs_create_group(&s->kobj, &slab_attr_group);
        if (err)
@@ -5310,8 +5312,6 @@ out:
        return err;
 out_del_kobj:
        kobject_del(&s->kobj);
-out_put_kobj:
-       kobject_put(&s->kobj);
        goto out;
 }