NGX_SLAB_SMALL    238 src/core/ngx_slab.c                                 page->prev = NGX_SLAB_SMALL;
NGX_SLAB_SMALL    354 src/core/ngx_slab.c             page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_SMALL;
NGX_SLAB_SMALL    463 src/core/ngx_slab.c     case NGX_SLAB_SMALL:
NGX_SLAB_SMALL    488 src/core/ngx_slab.c                 page->prev = (uintptr_t) &slots[slot] | NGX_SLAB_SMALL;
NGX_SLAB_SMALL    489 src/core/ngx_slab.c                 page->next->prev = (uintptr_t) page | NGX_SLAB_SMALL;