From 6c182dc0de26ef97efb6a97a8deab074833764e7 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Fri, 20 Aug 2010 12:37:14 -0500 Subject: [PATCH] slub: Remove static kmem_cache_cpu array for boot The percpu allocator can now handle allocations during early boot. So drop the static kmem_cache_cpu array. Cc: Tejun Heo Acked-by: David Rientjes Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- mm/slub.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 38c73a3364c6..e8c117595367 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2062,23 +2062,14 @@ init_kmem_cache_node(struct kmem_cache_node *n, struct kmem_cache *s) #endif } -static DEFINE_PER_CPU(struct kmem_cache_cpu, kmalloc_percpu[KMALLOC_CACHES]); - static inline int alloc_kmem_cache_cpus(struct kmem_cache *s) { - if (s < kmalloc_caches + KMALLOC_CACHES && s >= kmalloc_caches) - /* - * Boot time creation of the kmalloc array. Use static per cpu data - * since the per cpu allocator is not available yet. - */ - s->cpu_slab = kmalloc_percpu + (s - kmalloc_caches); - else - s->cpu_slab = alloc_percpu(struct kmem_cache_cpu); + BUILD_BUG_ON(PERCPU_DYNAMIC_EARLY_SIZE < + SLUB_PAGE_SHIFT * sizeof(struct kmem_cache_cpu)); - if (!s->cpu_slab) - return 0; + s->cpu_slab = alloc_percpu(struct kmem_cache_cpu); - return 1; + return s->cpu_slab != NULL; } #ifdef CONFIG_NUMA -- 2.11.0