Merge branches 'x86/apic', 'x86/cpu', 'x86/fixmap', 'x86/mm', 'x86/sched', 'x86/setup...

[profile/ivi/kernel-x86-ivi.git] / arch / x86 / mm / init_64.c

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index aae8745..724e537 100644 (file)
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -714,6 +714,8 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
        pos = start_pfn << PAGE_SHIFT;
        end_pfn = ((pos + (PMD_SIZE - 1)) >> PMD_SHIFT)
                        << (PMD_SHIFT - PAGE_SHIFT);
+       if (end_pfn > (end >> PAGE_SHIFT))
+               end_pfn = end >> PAGE_SHIFT;
        if (start_pfn < end_pfn) {
                nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
                pos = end_pfn << PAGE_SHIFT;