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| author | Christoph Lameter <cl@linux.com> | 2010-08-20 19:37:14 +0200 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2010-10-02 09:24:26 +0200 |
| commit | 6c182dc0de26ef97efb6a97a8deab074833764e7 (patch) | |
| tree | ef6d4278579ce30117e6095804e861ac35095a43 /mm | |
| parent | slub: Remove dynamic dma slab allocation (diff) | |
| download | linux-6c182dc0de26ef97efb6a97a8deab074833764e7.tar.xz linux-6c182dc0de26ef97efb6a97a8deab074833764e7.zip | |
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>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slub.c | 17 |
1 files 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 |