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sh: Fix up max_zone_pfns[] with multiple nodes.

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Currently using multiple nodes tramples the ZONE_NORMAL
max low pfn, tidy up the logic a bit to get it all working
as expected.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2007-06-06 12:09:54 +09:00 committed by Paul Mundt
parent cbd2d9d8fc
commit 2de212ebd8
1 changed files with 17 additions and 12 deletions
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21
arch/sh/mm/init.c
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@ -142,6 +142,7 @@ extern char __init_begin, __init_end;
*/
void __init paging_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
int nid;
/* We don't need to map the kernel through the TLB, as
@ -153,23 +154,23 @@ void __init paging_init(void)
* check for a null value. */
set_TTB(swapper_pg_dir);
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
for_each_online_node(nid) {
pg_data_t *pgdat = NODE_DATA(nid);
unsigned long max_zone_pfns[MAX_NR_ZONES];
unsigned long low, start_pfn;
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
start_pfn = pgdat->bdata->node_boot_start >> PAGE_SHIFT;
low = pgdat->bdata->node_low_pfn;
if (max_zone_pfns[ZONE_NORMAL] < low)
max_zone_pfns[ZONE_NORMAL] = low;
printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n",
nid, start_pfn, low);
}
free_area_init_nodes(max_zone_pfns);
}
}
static struct kcore_list kcore_mem, kcore_vmalloc;
@ -179,6 +180,9 @@ void __init mem_init(void)
int codesize, datasize, initsize;
int nid;
num_physpages = 0;
high_memory = NULL;
for_each_online_node(nid) {
pg_data_t *pgdat = NODE_DATA(nid);
unsigned long node_pages = 0;
@ -191,7 +195,7 @@ void __init mem_init(void)
totalram_pages += node_pages;
node_high_memory = (void *)((pgdat->node_start_pfn +
node_high_memory = (void *)__va((pgdat->node_start_pfn +
pgdat->node_spanned_pages) <<
PAGE_SHIFT);
if (node_high_memory > high_memory)
@ -225,7 +229,7 @@ void __init mem_init(void)
printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, "
"%dk data, %dk init)\n",
(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
totalram_pages << (PAGE_SHIFT-10),
num_physpages << (PAGE_SHIFT-10),
codesize >> 10,
datasize >> 10,
initsize >> 10);
@ -247,7 +251,8 @@ void free_initmem(void)
free_page(addr);
totalram_pages++;
}
printk ("Freeing unused kernel memory: %dk freed\n", (&__init_end - &__init_begin) >> 10);
printk("Freeing unused kernel memory: %dk freed\n",
(&__init_end - &__init_begin) >> 10);
}
#ifdef CONFIG_BLK_DEV_INITRD
@ -260,6 +265,6 @@ void free_initrd_mem(unsigned long start, unsigned long end)
free_page(p);
totalram_pages++;
}
printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
printk("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
}
#endif