1 files changed, 5 insertions, 3 deletions

diff --git a/arch/x86/kernel/e820_64.c b/arch/x86/kernel/e820_64.c
index b74e83b214c..9f65b4cc323 100644
--- a/arch/x86/kernel/e820_64.c
+++ b/arch/x86/kernel/e820_64.c
@@ -171,12 +171,13 @@ int __init e820_all_mapped(unsigned long start, unsigned long end,
 }
 
 /*
- * Find a free area in a specific range.
+ * Find a free area with specified alignment in a specific range.
  */
 unsigned long __init find_e820_area(unsigned long start, unsigned long end,
-                                    unsigned size)
+                                    unsigned size, unsigned long align)
 {
         int i;
+        unsigned long mask = ~(align - 1);
 
         for (i = 0; i < e820.nr_map; i++) {
                 struct e820entry *ei = &e820.map[i];
@@ -190,7 +191,8 @@ unsigned long __init find_e820_area(unsigned long start, unsigned long end,
                         continue;
                 while (bad_addr(&addr, size) && addr+size <= ei->addr+ei->size)
                         ;
-                last = PAGE_ALIGN(addr) + size;
+                addr = (addr + align - 1) & mask;
+                last = addr + size;
                 if (last > ei->addr + ei->size)
                         continue;
                 if (last > end)