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[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: Bob Picco <bob.picco@hp.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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8893166ff8
commit
d3ee871e63
2 changed files with 17 additions and 4 deletions
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@ -412,7 +412,6 @@ contig_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
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{
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unsigned long bootmap_size, bootmap;
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memory_present(0, start_pfn, end_pfn);
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bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
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bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT, bootmap_size);
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if (bootmap == -1L)
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@ -659,8 +658,6 @@ void __init setup_arch(char **cmdline_p)
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}
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#endif
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sparse_init();
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paging_init();
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check_ioapic();
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@ -113,7 +113,6 @@ void __init setup_node_bootmem(int nodeid, unsigned long start, unsigned long en
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start_pfn = start >> PAGE_SHIFT;
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end_pfn = end >> PAGE_SHIFT;
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memory_present(nodeid, start_pfn, end_pfn);
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nodedata_phys = find_e820_area(start, end, pgdat_size);
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if (nodedata_phys == -1L)
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panic("Cannot find memory pgdat in node %d\n", nodeid);
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@ -285,9 +284,26 @@ unsigned long __init numa_free_all_bootmem(void)
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return pages;
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}
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#ifdef CONFIG_SPARSEMEM
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static void __init arch_sparse_init(void)
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{
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int i;
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for_each_online_node(i)
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memory_present(i, node_start_pfn(i), node_end_pfn(i));
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sparse_init();
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}
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#else
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#define arch_sparse_init() do {} while (0)
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#endif
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void __init paging_init(void)
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{
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int i;
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arch_sparse_init();
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for_each_online_node(i) {
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setup_node_zones(i);
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}
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