From: Jiang Liu <liuj97@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiang Liu <jiang.liu@huawei.com>,
David Rientjes <rientjes@google.com>,
Wen Congyang <wency@cn.fujitsu.com>, Mel Gorman <mgorman@suse.de>,
Minchan Kim <minchan@kernel.org>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Michal Hocko <mhocko@suse.cz>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
David Howells <dhowells@redhat.com>,
Mark Salter <msalter@redhat.com>,
Jianguo Wu <wujianguo@huawei.com>,
linux-mm@kvack.org, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org, Richard Henderson <rth@twiddle.net>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Matt Turner <mattst88@gmail.com>,
linux-alpha@vger.kernel.org
Subject: [PATCH v5, part4 11/41] mm/alpha: prepare for removing num_physpages and simplify mem_init()
Date: Wed, 8 May 2013 23:51:08 +0800 [thread overview]
Message-ID: <1368028298-7401-12-git-send-email-jiang.liu@huawei.com> (raw)
In-Reply-To: <1368028298-7401-1-git-send-email-jiang.liu@huawei.com>
Prepare for removing num_physpages and simplify mem_init().
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/alpha/mm/init.c | 32 ++------------------------------
arch/alpha/mm/numa.c | 34 ++--------------------------------
2 files changed, 4 insertions(+), 62 deletions(-)
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index ca07a97..04c933c 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -277,42 +277,14 @@ srm_paging_stop (void)
#endif
#ifndef CONFIG_DISCONTIGMEM
-static void __init
-printk_memory_info(void)
-{
- unsigned long codesize, reservedpages, datasize, initsize, tmp;
- extern int page_is_ram(unsigned long) __init;
-
- /* printk all informations */
- reservedpages = 0;
- for (tmp = 0; tmp < max_low_pfn; tmp++)
- /*
- * Only count reserved RAM pages
- */
- if (page_is_ram(tmp) && PageReserved(mem_map+tmp))
- reservedpages++;
-
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_data;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk("Memory: %luk/%luk available (%luk kernel code, %luk reserved, %luk data, %luk init)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- max_mapnr << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10);
-}
-
void __init
mem_init(void)
{
- max_mapnr = num_physpages = max_low_pfn;
+ max_mapnr = max_low_pfn;
free_all_bootmem();
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
- printk_memory_info();
+ mem_init_print_info(NULL);
}
#endif /* CONFIG_DISCONTIGMEM */
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index 857452c..0894b3a8 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -129,8 +129,6 @@ setup_memory_node(int nid, void *kernel_end)
if (node_max_pfn > max_low_pfn)
max_pfn = max_low_pfn = node_max_pfn;
- num_physpages += node_max_pfn - node_min_pfn;
-
#if 0 /* we'll try this one again in a little while */
/* Cute trick to make sure our local node data is on local memory */
node_data[nid] = (pg_data_t *)(__va(node_min_pfn << PAGE_SHIFT));
@@ -324,37 +322,9 @@ void __init paging_init(void)
void __init mem_init(void)
{
- unsigned long codesize, reservedpages, datasize, initsize, pfn;
- extern int page_is_ram(unsigned long) __init;
- unsigned long nid, i;
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
-
- reservedpages = 0;
- for_each_online_node(nid) {
- /*
- * This will free up the bootmem, ie, slot 0 memory
- */
- free_all_bootmem_node(NODE_DATA(nid));
-
- pfn = NODE_DATA(nid)->node_start_pfn;
- for (i = 0; i < node_spanned_pages(nid); i++, pfn++)
- if (page_is_ram(pfn) &&
- PageReserved(nid_page_nr(nid, i)))
- reservedpages++;
- }
-
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_data;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk("Memory: %luk/%luk available (%luk kernel code, %luk reserved, "
- "%luk data, %luk init)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- num_physpages << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10);
+ free_all_bootmem();
+ mem_init_print_info(NULL);
#if 0
mem_stress();
#endif
--
1.7.9.5
--
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next prev parent reply other threads:[~2013-05-08 15:54 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-08 15:50 [PATCH v5, part4 00/41] Simplify mem_init() implementations and kill num_physpages Jiang Liu
2013-05-08 15:50 ` [PATCH v5, part4 01/41] vmlinux.lds: add comments for global variables and clean up useless declarations Jiang Liu
2013-05-08 15:50 ` [PATCH v5, part4 02/41] avr32: normalize global variables exported by vmlinux.lds Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 03/41] c6x: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 04/41] h8300: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 05/41] score: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 06/41] tile: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 07/41] UML: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 08/41] mm: introduce helper function mem_init_print_info() to simplify mem_init() Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 09/41] mm: use totalram_pages instead of num_physpages at runtime Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 10/41] mm/hotplug: prepare for removing num_physpages Jiang Liu
2013-05-08 15:51 ` Jiang Liu [this message]
2013-05-08 15:51 ` [PATCH v5, part4 12/41] mm/ARC: prepare for removing num_physpages and simplify mem_init() Jiang Liu
2013-05-29 8:41 ` Vineet Gupta
2013-05-29 13:05 ` Liu Jiang
2013-05-08 15:51 ` [PATCH v5, part4 13/41] mm/ARM: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 14/41] mm/ARM64: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 15/41] mm/AVR32: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 16/41] mm/blackfin: " Jiang Liu
2013-05-25 13:25 ` Sonic Zhang
2013-05-26 13:55 ` Liu Jiang
2013-05-08 15:51 ` [PATCH v5, part4 17/41] mm/c6x: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 18/41] mm/cris: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 19/41] mm/frv: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 20/41] mm/h8300: " Jiang Liu
2013-05-08 16:26 ` Sergei Shtylyov
2013-05-08 19:29 ` Sergei Shtylyov
2013-05-08 23:35 ` Cody P Schafer
2013-05-12 15:17 ` Liu Jiang
2013-05-08 15:51 ` [PATCH v5, part4 21/41] mm/hexagon: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 22/41] mm/IA64: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 23/41] mm/m32r: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 24/41] mm/m68k: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 25/41] mm/metag: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 26/41] mm/microblaze: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 27/41] mm/MIPS: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 28/41] mm/mn10300: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 29/41] mm/openrisc: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 30/41] mm/PARISC: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 31/41] mm/ppc: " Jiang Liu
2013-05-15 0:32 ` Benjamin Herrenschmidt
2013-05-15 15:49 ` Liu Jiang
2013-05-08 15:51 ` [PATCH v5, part4 32/41] mm/s390: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 33/41] mm/score: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 34/41] mm/SH: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 35/41] mm/SPARC: " Jiang Liu
2013-05-08 19:02 ` Sam Ravnborg
2013-05-08 15:51 ` [PATCH v5, part4 36/41] mm/tile: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 37/41] mm/um: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 38/41] mm/unicore32: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 39/41] mm/x86: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 40/41] mm/xtensa: " Jiang Liu
2013-05-08 15:51 ` [PATCH v5, part4 41/41] mm: kill global variable num_physpages Jiang Liu
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