454c63b02e
This implements a platform-independent version of show_mem(). Signed-off-by: Johannes Weiner <hannes@saeurebad.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Bryan Wu <cooloney@kernel.org> Cc: Chris Zankel <chris@zankel.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jeff Dike <jdike@addtoit.com> Cc: David S. Miller <davem@davemloft.net> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: David Howells <dhowells@redhat.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Mikael Starvik <starvik@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/*
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* Generic show_mem() implementation
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*
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* Copyright (C) 2008 Johannes Weiner <hannes@saeurebad.de>
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* All code subject to the GPL version 2.
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*/
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#include <linux/mm.h>
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#include <linux/nmi.h>
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#include <linux/quicklist.h>
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void show_mem(void)
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{
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pg_data_t *pgdat;
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unsigned long total = 0, reserved = 0, shared = 0,
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nonshared = 0, highmem = 0;
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printk(KERN_INFO "Mem-Info:\n");
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show_free_areas();
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for_each_online_pgdat(pgdat) {
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unsigned long i, flags;
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pgdat_resize_lock(pgdat, &flags);
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for (i = 0; i < pgdat->node_spanned_pages; i++) {
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struct page *page;
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unsigned long pfn = pgdat->node_start_pfn + i;
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if (unlikely(!(i % MAX_ORDER_NR_PAGES)))
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touch_nmi_watchdog();
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if (!pfn_valid(pfn))
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continue;
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page = pfn_to_page(pfn);
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if (PageHighMem(page))
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highmem++;
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if (PageReserved(page))
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reserved++;
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else if (page_count(page) == 1)
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nonshared++;
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else if (page_count(page) > 1)
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shared += page_count(page) - 1;
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total++;
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}
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pgdat_resize_unlock(pgdat, &flags);
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}
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printk(KERN_INFO "%lu pages RAM\n", total);
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#ifdef CONFIG_HIGHMEM
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printk(KERN_INFO "%lu pages HighMem\n", highmem);
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#endif
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printk(KERN_INFO "%lu pages reserved\n", reserved);
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printk(KERN_INFO "%lu pages shared\n", shared);
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printk(KERN_INFO "%lu pages non-shared\n", nonshared);
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#ifdef CONFIG_QUICKLIST
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printk(KERN_INFO "%lu pages in pagetable cache\n",
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quicklist_total_size());
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#endif
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}
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