提交 6c182dc0 编写于 作者: C Christoph Lameter 提交者: Pekka Enberg

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: NDavid Rientjes <rientjes@google.com>
Signed-off-by: NChristoph Lameter <cl@linux-foundation.org>
Signed-off-by: NPekka Enberg <penberg@kernel.org>
上级 55136592
......@@ -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
......
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