From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752150AbeB1D1Z (ORCPT ); Tue, 27 Feb 2018 22:27:25 -0500 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:51712 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751830AbeB1D1V (ORCPT ); Tue, 27 Feb 2018 22:27:21 -0500 From: Baoquan He To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, dave.hansen@intel.com, pagupta@redhat.com Cc: linux-mm@kvack.org, kirill.shutemov@linux.intel.com, Baoquan He Subject: [PATCH v3 3/4] mm/sparse: Add a new parameter 'data_unit_size' for alloc_usemap_and_memmap Date: Wed, 28 Feb 2018 11:26:56 +0800 Message-Id: <20180228032657.32385-4-bhe@redhat.com> In-Reply-To: <20180228032657.32385-1-bhe@redhat.com> References: <20180228032657.32385-1-bhe@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It's used to pass the size of map data unit into alloc_usemap_and_memmap, and is preparation for next patch. Signed-off-by: Baoquan He --- mm/sparse.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/mm/sparse.c b/mm/sparse.c index 5769a0a79dc1..e1aa2f44530d 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -528,10 +528,12 @@ void __weak __meminit vmemmap_populate_print_last(void) /** * alloc_usemap_and_memmap - memory alloction for pageblock flags and vmemmap * @map: usemap_map for pageblock flags or mmap_map for vmemmap + * @unit_size: size of map unit */ static void __init alloc_usemap_and_memmap(void (*alloc_func) (void *, unsigned long, unsigned long, - unsigned long, int), void *data) + unsigned long, int), void *data, + int data_unit_size) { unsigned long pnum; unsigned long map_count; @@ -608,7 +610,8 @@ void __init sparse_init(void) if (!usemap_map) panic("can not allocate usemap_map\n"); alloc_usemap_and_memmap(sparse_early_usemaps_alloc_node, - (void *)usemap_map); + (void *)usemap_map, + sizeof(usemap_map[0])); #ifdef CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER size2 = sizeof(struct page *) * NR_MEM_SECTIONS; @@ -616,7 +619,8 @@ void __init sparse_init(void) if (!map_map) panic("can not allocate map_map\n"); alloc_usemap_and_memmap(sparse_early_mem_maps_alloc_node, - (void *)map_map); + (void *)map_map, + sizeof(map_map[0])); #endif for_each_present_section_nr(0, pnum) { -- 2.13.6