page_ptl_cachep 4649 mm/memory.c static struct kmem_cache *page_ptl_cachep; page_ptl_cachep 4653 mm/memory.c page_ptl_cachep = kmem_cache_create("page->ptl", sizeof(spinlock_t), 0, page_ptl_cachep 4661 mm/memory.c ptl = kmem_cache_alloc(page_ptl_cachep, GFP_KERNEL); page_ptl_cachep 4670 mm/memory.c kmem_cache_free(page_ptl_cachep, page->ptl);