From: David Zafman <dzafman@redhat.com>
Date: Wed, 20 Nov 2019 19:55:15 +0000 (-0800)
Subject: tools: odsmaptool truncate target upmap file
X-Git-Tag: v14.2.8~20^2~18^2~20
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=ad4702f301cc334f0c5aea3c76303da2ba26318d;p=ceph.git

tools: odsmaptool truncate target upmap file

Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit a49324ceb9c322f792ea00720f438ea9ea09555f)
---

diff --git a/src/tools/osdmaptool.cc b/src/tools/osdmaptool.cc
index 1299d342939d0..605c1945a49c0 100644
--- a/src/tools/osdmaptool.cc
+++ b/src/tools/osdmaptool.cc
@@ -350,7 +350,7 @@ int main(int argc, const char **argv)
   int upmap_fd = STDOUT_FILENO;
   if (upmap || upmap_cleanup) {
     if (upmap_file != "-") {
-      upmap_fd = ::open(upmap_file.c_str(), O_CREAT|O_WRONLY, 0644);
+      upmap_fd = ::open(upmap_file.c_str(), O_CREAT|O_WRONLY|O_TRUNC, 0644);
       if (upmap_fd < 0) {
 	cerr << "error opening " << upmap_file << ": " << cpp_strerror(errno)
 	     << std::endl;