X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Frrd_open.c;h=70e0ab9f5d6b38dd3b4339a438943f848e8c25d1;hb=1b8f812fbf8d14bad0fcf9749ac71f640bda2868;hp=b9885aa5fc27f0fc543becef760fee7cb41bdcd1;hpb=aece9a43678dd1ab14316a385ee1599cd31e3011;p=rrdtool.git

diff --git a/src/rrd_open.c b/src/rrd_open.c
index b9885aa..70e0ab9 100644
--- a/src/rrd_open.c
+++ b/src/rrd_open.c
@@ -381,6 +381,9 @@ int rrd_close(
     int       ret;
 
 #ifdef HAVE_MMAP
+    ret = msync(rrd_file->file_start, rrd_file->file_len,MS_ASYNC);
+    if (ret != 0)
+        rrd_set_error("msync rrd_file: %s", rrd_strerror(errno));
     ret = munmap(rrd_file->file_start, rrd_file->file_len);
     if (ret != 0)
         rrd_set_error("munmap rrd_file: %s", rrd_strerror(errno));
@@ -480,7 +483,7 @@ inline ssize_t rrd_write(
     if (count == 0)
        return 0;
     if (buf == NULL)
-       return -1 /* EINVAL */
+       return -1; /* EINVAL */
     memcpy(rrd_file->file_start + rrd_file->pos, buf, count);
     rrd_file->pos += count;
     return count;       /* mimmic write() semantics */