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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 <tj@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Christoph Lameter 2010-08-20 12:37:14 -05:00 committed by Pekka Enberg
parent 55136592fe
commit 6c182dc0de
1 changed files with 4 additions and 13 deletions
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17
mm/slub.c
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@ -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