From: Tobias Oetiker <tobi@oetiker.ch>
Date: Mon, 8 Dec 2014 22:19:07 +0000 (+0100)
Subject: don't use fadvise if we have mmap
X-Git-Tag: v1.5.0-rc1~8
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f16e39e0e4129ce3f694940534cf5e2da0afa772;p=thirdparty%2Frrdtool-1.x.git

don't use fadvise if we have mmap
---

diff --git a/src/rrd_open.c b/src/rrd_open.c
index 6838b99c..af875cce 100644
--- a/src/rrd_open.c
+++ b/src/rrd_open.c
@@ -236,7 +236,7 @@ rrd_file_t *rrd_open(
         lseek(rrd_simple_file->fd, 0, SEEK_SET);
     }
     no_lseek_necessary:
-#ifdef HAVE_POSIX_FADVISE
+#if !defined(HAVE_MMAP) && defined(HAVE_POSIX_FADVISE)
     /* In general we need no read-ahead when dealing with rrd_files.
        When we stop reading, it is highly unlikely that we start up again.
        In this manner we actually save time and diskaccess (and buffer cache).