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Commit d3ee871e authored by Bob Picco's avatar Bob Picco Committed by Linus Torvalds
Browse files

[PATCH] x86_64: Fix sparse mem 



Fix up booting with sparse mem enabled. Otherwise it would just
cause an early PANIC at boot.

Signed-off-by: default avatarBob Picco <bob.picco@hp.com>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 8893166f

arch/x86_64/kernel/setup.c

+0 −3
Original line number Diff line number Diff line
@@ -412,7 +412,6 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn) 
{

	unsigned long bootmap_size, bootmap;



	memory_present(0, start_pfn, end_pfn);

	bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;

	bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size);

	if (bootmap == -1L)
@@ -659,8 +658,6 @@ void __init setup_arch(char **cmdline_p) 
	}

#endif



	sparse_init();



	paging_init();



	check_ioapic();

arch/x86_64/mm/numa.c

+17 −1
Original line number Diff line number Diff line
@@ -113,7 +113,6 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long en 
	start_pfn = start >> PAGE_SHIFT;

	end_pfn = end >> PAGE_SHIFT;



	memory_present(nodeid, start_pfn, end_pfn);

	nodedata_phys = find_e820_area(start, end, pgdat_size); 

	if (nodedata_phys == -1L) 

		panic("Cannot find memory pgdat in node %d\n", nodeid);
@@ -285,9 +284,26 @@ unsigned long __init numa_free_all_bootmem(void) 
	return pages;

} 



#ifdef CONFIG_SPARSEMEM

static void __init arch_sparse_init(void)

{

	int i;



	for_each_online_node(i)

		memory_present(i, node_start_pfn(i), node_end_pfn(i));



	sparse_init();

}

#else

#define arch_sparse_init() do {} while (0)

#endif



void __init paging_init(void)

{ 

	int i;



	arch_sparse_init();



	for_each_online_node(i) {

		setup_node_zones(i); 

	}