commit a462a57b182c221f194da769c556008bfc98cbf8
author Paul Crowley <paulcrowley@google.com> Mon Sep 16 10:42:06 2019 -0700
committer android-build-merger <android-build-merger@google.com> Mon Sep 16 10:42:06 2019 -0700
tree 7b4eb251387d0c38f31d4a56ae76fbe74d1343c8
parent 0b895c13bcf5839f3c001e19cc976038df536978
parent 88dba9a558d68b7735d924bcf487bde8ef323a16

Merge "Add ebiggers to OWNERS"
am: 88dba9a558

Change-Id: I70868eab667ea5566164ec4d8a5d19e230a89736

secdiscard.cpp

diff --git a/secdiscard.cpp b/secdiscard.cpp
index 0ff05d6..4659eed 100644
--- a/secdiscard.cpp
+++ b/secdiscard.cpp
@@ -147,6 +147,10 @@
             if (!overwrite_with_zeros(fs_fd.get(), range[0], range[1])) return false;
         }
     }
+    // Should wait for overwrites completion. Otherwise after unlink(),
+    // filesystem can allocate these blocks and IO can be reordered, resulting
+    // in making zero blocks to filesystem blocks.
+    fsync(fs_fd.get());
     return true;
 }