Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2de212eb authored by Paul Mundt's avatar Paul Mundt Committed by Paul Mundt
Browse files

sh: Fix up max_zone_pfns[] with multiple nodes. 



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: default avatarPaul Mundt <lethal@linux-sh.org>
parent cbd2d9d8

arch/sh/mm/init.c

+17 −12
Original line number Diff line number Diff line
@@ -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
@@ -153,24 +154,24 @@ 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