[PATCH] mm: split highorder pages
[linux-2.6.git] / arch / arm / mm / consistent.c
index c2ee18d2075e7bd22312835cf9c3d859c0913f5b..8a1bfcd500871dde0eb02b72962ef06060ae6b88 100644 (file)
@@ -223,6 +223,8 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
                pte = consistent_pte[idx] + off;
                c->vm_pages = page;
 
+               split_page(page, order);
+
                /*
                 * Set the "dma handle"
                 */
@@ -231,7 +233,6 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
                do {
                        BUG_ON(!pte_none(*pte));
 
-                       set_page_count(page, 1);
                        /*
                         * x86 does not mark the pages reserved...
                         */
@@ -250,7 +251,6 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
                 * Free the otherwise unused pages.
                 */
                while (page < end) {
-                       set_page_count(page, 1);
                        __free_page(page);
                        page++;
                }