From: Ronen Friedman <rfriedma@redhat.com>
Date: Sat, 25 Sep 2021 11:42:56 +0000 (+0000)
Subject: osd: fix the truncation of an int by int division
X-Git-Tag: v16.2.8~83^2
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=7faeef8568d561d140785399f9073f21f393e840;p=ceph.git

osd: fix the truncation of an int by int division

The 'r' coeff calculated in OSD::tick() was always 0.

Signed-off-by: Ronen Friedman <rfriedma@redhat.com>
(cherry picked from commit 6f2b4d3dd26b0ee072949888560b40bbeb3dc27e)
---

diff --git a/src/osd/OSD.cc b/src/osd/OSD.cc
index ce9079796e1c8..ac9bd245f2d17 100644
--- a/src/osd/OSD.cc
+++ b/src/osd/OSD.cc
@@ -5960,7 +5960,7 @@ void OSD::tick()
     // use a seed that is stable for each scrub interval, but varies
     // by OSD to avoid any herds.
     rng.seed(whoami + superblock.last_purged_snaps_scrub.sec());
-    double r = (rng() % 1024) / 1024;
+    double r = (rng() % 1024) / 1024.0;
     next +=
       cct->_conf->osd_scrub_min_interval *
       cct->_conf->osd_scrub_interval_randomize_ratio * r;