1 files changed, 8 insertions, 0 deletions

diff --git a/mm/slub.c b/mm/slub.c
index a660834416ac..3f056677fa8f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1999,6 +1999,7 @@ static struct kmem_cache_node *early_kmem_cache_node_alloc(gfp_t gfpflags,
 {
         struct page *page;
         struct kmem_cache_node *n;
+        unsigned long flags;
 
         BUG_ON(kmalloc_caches->size < sizeof(struct kmem_cache_node));
 
@@ -2023,7 +2024,14 @@ static struct kmem_cache_node *early_kmem_cache_node_alloc(gfp_t gfpflags,
 #endif
         init_kmem_cache_node(n);
         atomic_long_inc(&n->nr_slabs);
+        /*
+         * lockdep requires consistent irq usage for each lock
+         * so even though there cannot be a race this early in
+         * the boot sequence, we still disable irqs.
+         */
+        local_irq_save(flags);
         add_partial(n, page, 0);
+        local_irq_restore(flags);
         return n;
 }