linux-kernel - [RFC 02/22] x86: Use generic show

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Date:	Wed,  2 Apr 2008 22:40:08 +0200
From:	Johannes Weiner <hannes@...urebad.de>
To:	linux-kernel@...r.kernel.org
Cc:	linux-mm@...ck.org, mingo@...e.hu, davem@...emloft.net,
	hskinnemoen@...el.com, cooloney@...nel.org, starvik@...s.com,
	dhowells@...hat.com, ysato@...rs.sf.net, takata@...ux-m32r.org,
	geert@...ux-m68k.org, ralf@...ux-mips.org, kyle@...isc-linux.org,
	paulus@...ba.org, schwidefsky@...ibm.com, lethal@...ux-sh.org,
	jdike@...toit.com, miles@....org, chris@...kel.net,
	rmk@....linux.org.uk, tony.luck@...el.com
Subject: [RFC 02/22] x86: Use generic show_mem()


Signed-off-by: Johannes Weiner <hannes@...urebad.de>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 47bb585..6c70fed 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -939,9 +939,6 @@ config ARCH_MEMORY_PROBE
 	def_bool X86_64
 	depends on MEMORY_HOTPLUG
 
-config HAVE_ARCH_SHOW_MEM
-	def_bool y
-
 source "mm/Kconfig"
 
 config HIGHPTE
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index a02a14f..82f3b6d 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -60,46 +60,6 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
  * around without checking the pgd every time.
  */
 
-void show_mem(void)
-{
-	long i, total = 0, reserved = 0;
-	long shared = 0, cached = 0;
-	struct page *page;
-	pg_data_t *pgdat;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas();
-	printk(KERN_INFO "Free swap:       %6ldkB\n",
-		nr_swap_pages << (PAGE_SHIFT-10));
-
-	for_each_online_pgdat(pgdat) {
-		for (i = 0; i < pgdat->node_spanned_pages; ++i) {
-			/*
-			 * This loop can take a while with 256 GB and
-			 * 4k pages so defer the NMI watchdog:
-			 */
-			if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
-				touch_nmi_watchdog();
-
-			if (!pfn_valid(pgdat->node_start_pfn + i))
-				continue;
-
-			page = pfn_to_page(pgdat->node_start_pfn + i);
-			total++;
-			if (PageReserved(page))
-				reserved++;
-			else if (PageSwapCache(page))
-				cached++;
-			else if (page_count(page))
-				shared += page_count(page) - 1;
-		}
-	}
-	printk(KERN_INFO "%lu pages of RAM\n",		total);
-	printk(KERN_INFO "%lu reserved pages\n",	reserved);
-	printk(KERN_INFO "%lu pages shared\n",		shared);
-	printk(KERN_INFO "%lu pages swap cached\n",	cached);
-}
-
 int after_bootmem;
 
 static __init void *spp_getpage(void)
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 2f9e9af..ead7015 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -24,54 +24,6 @@
 #include <asm/tlb.h>
 #include <asm/tlbflush.h>
 
-void show_mem(void)
-{
-	int total = 0, reserved = 0;
-	int shared = 0, cached = 0;
-	int highmem = 0;
-	struct page *page;
-	pg_data_t *pgdat;
-	unsigned long i;
-	unsigned long flags;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas();
-	printk(KERN_INFO "Free swap:       %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10));
-	for_each_online_pgdat(pgdat) {
-		pgdat_resize_lock(pgdat, &flags);
-		for (i = 0; i < pgdat->node_spanned_pages; ++i) {
-			if (unlikely(i % MAX_ORDER_NR_PAGES == 0))
-				touch_nmi_watchdog();
-			page = pgdat_page_nr(pgdat, i);
-			total++;
-			if (PageHighMem(page))
-				highmem++;
-			if (PageReserved(page))
-				reserved++;
-			else if (PageSwapCache(page))
-				cached++;
-			else if (page_count(page))
-				shared += page_count(page) - 1;
-		}
-		pgdat_resize_unlock(pgdat, &flags);
-	}
-	printk(KERN_INFO "%d pages of RAM\n", total);
-	printk(KERN_INFO "%d pages of HIGHMEM\n", highmem);
-	printk(KERN_INFO "%d reserved pages\n", reserved);
-	printk(KERN_INFO "%d pages shared\n", shared);
-	printk(KERN_INFO "%d pages swap cached\n", cached);
-
-	printk(KERN_INFO "%lu pages dirty\n", global_page_state(NR_FILE_DIRTY));
-	printk(KERN_INFO "%lu pages writeback\n",
-					global_page_state(NR_WRITEBACK));
-	printk(KERN_INFO "%lu pages mapped\n", global_page_state(NR_FILE_MAPPED));
-	printk(KERN_INFO "%lu pages slab\n",
-		global_page_state(NR_SLAB_RECLAIMABLE) +
-		global_page_state(NR_SLAB_UNRECLAIMABLE));
-	printk(KERN_INFO "%lu pages pagetables\n",
-					global_page_state(NR_PAGETABLE));
-}
-
 /*
  * Associate a virtual page frame with a given physical page frame 
  * and protection flags for that frame.
-- 
1.5.2.2

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