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[patch 19/22 -v3] um: Use generic show_mem()

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To: LKML <linux-kernel@...>
Cc: Jeff Dike <jdike@...>
Date: Monday, April 7, 2008 - 10:40 am

Remove arch-specific show_mem() in favor of the generic version.

This also removes the following redundant information display:

	- pages in swapcache, printed by show_swap_cache_info()

where show_mem() calls show_free_areas(), which calls
show_swap_cache_info().

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Acked-by: Jeff Dike <jdike@addtoit.com>
---

Index: tree-linus/arch/um/Kconfig
===================================================================
--- tree-linus.orig/arch/um/Kconfig
+++ tree-linus/arch/um/Kconfig
@@ -11,6 +11,7 @@ config GENERIC_HARDIRQS
 config UML
 	bool
 	default y
+	select HAVE_GENERIC_SHOW_MEM
 
 config MMU
 	bool
Index: tree-linus/arch/um/kernel/mem.c
===================================================================
--- tree-linus.orig/arch/um/kernel/mem.c
+++ tree-linus/arch/um/kernel/mem.c
@@ -295,35 +295,6 @@ void free_initrd_mem(unsigned long start
 }
 #endif
 
-void show_mem(void)
-{
-	int pfn, total = 0, reserved = 0;
-	int shared = 0, cached = 0;
-	int high_mem = 0;
-	struct page *page;
-
-	printk(KERN_INFO "Mem-info:\n");
-	show_free_areas();
-	pfn = max_mapnr;
-	while (pfn-- > 0) {
-		page = pfn_to_page(pfn);
-		total++;
-		if (PageHighMem(page))
-			high_mem++;
-		if (PageReserved(page))
-			reserved++;
-		else if (PageSwapCache(page))
-			cached++;
-		else if (page_count(page))
-			shared += page_count(page) - 1;
-	}
-	printk(KERN_INFO "%d pages of RAM\n", total);
-	printk(KERN_INFO "%d pages of HIGHMEM\n", high_mem);
-	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);
-}
-
 /* Allocate and free page tables. */
 
 pgd_t *pgd_alloc(struct mm_struct *mm)

-- 

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[patch 19/22 -v3] um: Use generic show_mem(), Johannes Weiner, (Mon Apr 7, 10:40 am)
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