From 155cfb3c73e0d03fbcf6a2317c5807d7b6e00a98 Mon Sep 17 00:00:00 2001
From: Vitaliy Filippov <vitalif@yourcmc.ru>
Date: Sat, 30 May 2026 16:16:31 +0300
Subject: [PATCH] Add fsyncs to vitastor-disk prepare (cosmetic)

---
 src/disk_tool/disk_tool_udev.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/disk_tool/disk_tool_udev.cpp b/src/disk_tool/disk_tool_udev.cpp
index 987275fc..066b7a96 100644
--- a/src/disk_tool/disk_tool_udev.cpp
+++ b/src/disk_tool/disk_tool_udev.cpp
@@ -138,6 +138,7 @@ uint32_t disk_tool_t::write_osd_superblock(std::string device, json11::Json para
         free(buf);
         return 0;
     }
+    fsync(fd);
     close(fd);
     free(buf);
     if (!test_mode)
@@ -419,9 +420,9 @@ int disk_tool_t::clear_osd_superblock(const std::string & dev)
                     r = 0;
             }
         }
-    }
-    if (fd >= 0)
+        fsync(fd);
         close(fd);
+    }
     free(buf);
     buf = NULL;
     return r;