forked from Minki/linux
0c98853473
Concentrate code to modify totalram_pages into the mm core, so the arch memory initialized code doesn't need to take care of it. With these changes applied, only following functions from mm core modify global variable totalram_pages: free_bootmem_late(), free_all_bootmem(), free_all_bootmem_node(), adjust_managed_page_count(). With this patch applied, it will be much more easier for us to keep totalram_pages and zone->managed_pages in consistence. Signed-off-by: Jiang Liu <jiang.liu@huawei.com> Acked-by: David Howells <dhowells@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: <sworddragon2@aol.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Michel Lespinasse <walken@google.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Rik van Riel <riel@redhat.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Tang Chen <tangchen@cn.fujitsu.com> Cc: Tejun Heo <tj@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wen Congyang <wency@cn.fujitsu.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
70 lines
1.6 KiB
C
70 lines
1.6 KiB
C
/*
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* linux/arch/cris/mm/init.c
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*
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* Copyright (C) 1995 Linus Torvalds
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* Copyright (C) 2000,2001 Axis Communications AB
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*
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* Authors: Bjorn Wesen (bjornw@axis.com)
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*
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*/
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#include <linux/gfp.h>
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#include <linux/init.h>
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#include <linux/bootmem.h>
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#include <asm/tlb.h>
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#include <asm/sections.h>
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unsigned long empty_zero_page;
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void __init
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mem_init(void)
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{
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int codesize, reservedpages, datasize, initsize;
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unsigned long tmp;
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BUG_ON(!mem_map);
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/* max/min_low_pfn was set by setup.c
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* now we just copy it to some other necessary places...
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*
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* high_memory was also set in setup.c
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*/
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max_mapnr = num_physpages = max_low_pfn - min_low_pfn;
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/* this will put all memory onto the freelists */
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free_all_bootmem();
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reservedpages = 0;
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for (tmp = 0; tmp < max_mapnr; tmp++) {
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/*
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* Only count reserved RAM pages
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*/
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if (PageReserved(mem_map + tmp))
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reservedpages++;
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}
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codesize = (unsigned long) &_etext - (unsigned long) &_stext;
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datasize = (unsigned long) &_edata - (unsigned long) &_etext;
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initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
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printk(KERN_INFO
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"Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, "
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"%dk init)\n" ,
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nr_free_pages() << (PAGE_SHIFT-10),
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max_mapnr << (PAGE_SHIFT-10),
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codesize >> 10,
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reservedpages << (PAGE_SHIFT-10),
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datasize >> 10,
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initsize >> 10
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);
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}
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/* free the pages occupied by initialization code */
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void
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free_initmem(void)
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{
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free_initmem_default(-1);
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}
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