--- a/src/core/ngx_palloc.h
+++ b/src/core/ngx_palloc.h
@@ -43,12 +43,18 @@ struct ngx_pool_large_s {
 };
 
 
-struct ngx_pool_s {
+typedef struct {
     u_char               *last;
     u_char               *end;
+    ngx_pool_t           *next;
+} ngx_pool_data_t;
+
+
+struct ngx_pool_s {
+    ngx_pool_data_t       d;
+    size_t                max;
     ngx_pool_t           *current;
     ngx_chain_t          *chain;
-    ngx_pool_t           *next;
     ngx_pool_large_t     *large;
     ngx_pool_cleanup_t   *cleanup;
     ngx_log_t            *log;
@@ -69,7 +75,7 @@ ngx_pool_t *ngx_create_pool(size_t size,
 void ngx_destroy_pool(ngx_pool_t *pool);
 
 void *ngx_palloc(ngx_pool_t *pool, size_t size);
-void *ngx_palloc_aligned(ngx_pool_t *pool, size_t size);
+void *ngx_pnalloc(ngx_pool_t *pool, size_t size);
 void *ngx_pcalloc(ngx_pool_t *pool, size_t size);
 ngx_int_t ngx_pfree(ngx_pool_t *pool, void *p);