From c52dd120fd6498ee73b7652e3b0e5380124a5502 Mon Sep 17 00:00:00 2001
From: Luca Venturini <luca@yepa.com>
Date: Sat, 23 Mar 2019 04:20:40 +0000
Subject: [PATCH] Handle the result of posix_fallocate system call

Github-Pull: #15650
Rebased-From: 5d35ae3326624da3fe5dcb4047c9a7cec6665cab
---
 src/util/system.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/util/system.cpp b/src/util/system.cpp
index caa65f59ef2..9765a18df10 100644
--- a/src/util/system.cpp
+++ b/src/util/system.cpp
@@ -1085,11 +1085,12 @@ void AllocateFileRange(FILE *file, unsigned int offset, unsigned int length) {
         fcntl(fileno(file), F_PREALLOCATE, &fst);
     }
     ftruncate(fileno(file), fst.fst_length);
-#elif defined(__linux__)
+#else
+    #if defined(__linux__)
     // Version using posix_fallocate
     off_t nEndPos = (off_t)offset + length;
-    posix_fallocate(fileno(file), 0, nEndPos);
-#else
+    if (0 == posix_fallocate(fileno(file), 0, nEndPos)) return;
+    #endif
     // Fallback version
     // TODO: just write one byte per block
     static const char buf[65536] = {};