lib: Only test atomic64_dec_if_positive on archs having it

[safe/jmp/linux-2.6] / lib / lmb.c

diff --git a/lib/lmb.c b/lib/lmb.c
index 0343c05..9cee171 100644 (file)
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -263,7 +263,7 @@ long __init lmb_reserve(u64 base, u64 size)
        return lmb_add_region(_rgn, base, size);
 }
 
-long __init lmb_overlaps_region(struct lmb_region *rgn, u64 base, u64 size)
+long lmb_overlaps_region(struct lmb_region *rgn, u64 base, u64 size)
 {
        unsigned long i;
 
@@ -493,6 +493,11 @@ int __init lmb_is_reserved(u64 addr)
        return 0;
 }
 
+int lmb_is_region_reserved(u64 base, u64 size)
+{
+       return lmb_overlaps_region(&lmb.reserved, base, size);
+}
+
 /*
  * Given a <base, len>, find which memory regions belong to this range.
  * Adjust the request and return a contiguous chunk.