commit c378f22f60298a659b31c6d7ea319392b0586aeb
author Benergy Meenan Ravuri <bravuri@codeaurora.org> Mon Jul 12 23:27:12 2021 +0530
committer Michael Bestas <mkbestas@lineageos.org> Wed May 15 18:44:44 2024 +0300
tree 92b7ec81da4f13571ba0d2e45fdc98a0b9b155f7
parent 2b40b28beca85d1bf87f5cccffa106ac4751631b

FP5: gpt-utils: Do fsync after writing partition entries

Do fsync after writing partition entries to ensure data
is actually written before rebooting device.

Change-Id: I09659cab247fe280dc608e30a88d912034cbc01a

gpt-utils/gpt-utils.cpp

diff --git a/gpt-utils/gpt-utils.cpp b/gpt-utils/gpt-utils.cpp
index 1a2b0e0..5e014be 100644
--- a/gpt-utils/gpt-utils.cpp
+++ b/gpt-utils/gpt-utils.cpp
@@ -1478,7 +1478,7 @@
                 ALOGE("%s: Invalid args", __func__);
                 goto error;
         }
-        fd = open(disk->devpath, O_RDWR);
+        fd = open(disk->devpath, O_RDWR | O_DSYNC);
         if (fd < 0) {
                 ALOGE("%s: Failed to open %s: %s",
                                 __func__,
@@ -1510,6 +1510,7 @@
                                 __func__);
                 goto error;
         }
+        fsync(fd);
         close(fd);
         return 0;
 error: