From a62c145f2614203dfadd5bcc5f601d6e9c899c2d Mon Sep 17 00:00:00 2001
From: Marco Previtali <marco.previtali@unimib.it>
Date: Mon, 11 Nov 2019 12:10:30 +0100
Subject: [PATCH] Adds guards for hugepages

---
 bloomfilter.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bloomfilter.h b/bloomfilter.h
index 5534928..ea09a31 100644
--- a/bloomfilter.h
+++ b/bloomfilter.h
@@ -63,11 +63,13 @@ class BF {
     _mode(0),
     _bf(size, 0)
   {
+#ifdef MADV_HUGEPAGE
     char* const sptr = reinterpret_cast<char*>(_bf.data());
     const size_t soffset = SHARK_HUGEPAGESIZE - (reinterpret_cast<size_t>(sptr) % SHARK_HUGEPAGESIZE);
     char* const eptr = sptr + (((size + 63) >> 6) << 3);
     const size_t eoffset = (reinterpret_cast<size_t>(eptr) % SHARK_HUGEPAGESIZE);
     madvise(sptr + soffset, (eptr - sptr) - eoffset - soffset, MADV_HUGEPAGE);
+#endif
   }
 
   ~BF() {}