vserver 2.0 rc7

[linux-2.6.git] / arch / ppc64 / kernel / lmb.c

diff --git a/arch/ppc64/kernel/lmb.c b/arch/ppc64/kernel/lmb.c
index 56d7ba8..d6c6bd0 100644 (file)
--- a/arch/ppc64/kernel/lmb.c
+++ b/arch/ppc64/kernel/lmb.c
@@ -344,3 +344,29 @@ lmb_abs_to_phys(unsigned long aa)
 
        return pa;
 }
+
+/*
+ * Truncate the lmb list to memory_limit if it's set
+ * You must call lmb_analyze() after this.
+ */
+void __init lmb_enforce_memory_limit(void)
+{
+       extern unsigned long memory_limit;
+       unsigned long i, limit;
+       struct lmb_region *mem = &(lmb.memory);
+
+       if (! memory_limit)
+               return;
+
+       limit = memory_limit;
+       for (i = 0; i < mem->cnt; i++) {
+               if (limit > mem->region[i].size) {
+                       limit -= mem->region[i].size;
+                       continue;
+               }
+
+               mem->region[i].size = limit;
+               mem->cnt = i + 1;
+               break;
+       }
+}