diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slub.c | 8 |
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; } |