diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp
index 13280ed0cec22..7b39e24660091 100644
--- a/lld/ELF/Writer.cpp
+++ b/lld/ELF/Writer.cpp
@@ -13,8 +13,6 @@
 #include "Config.h"
 #include "InputFiles.h"
 #include "LinkerScript.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/Path.h"
 #include "MapFile.h"
 #include "OutputSections.h"
 #include "Relocations.h"
@@ -2800,15 +2798,6 @@ template <class ELFT> void Writer<ELFT>::writeHeader() {
     sec->writeHeaderTo<ELFT>(++sHdrs);
 }
 
-static StringRef parentPathOrDot(StringRef path) {
-  auto parent_path = sys::path::parent_path(path);
-  if (parent_path.empty() && !path.empty() && !sys::path::is_absolute(path)) {
-    return ".";
-  } else {
-    return parent_path;
-  }
-}
-
 // Open a result file.
 template <class ELFT> void Writer<ELFT>::openFile() {
   uint64_t maxSize = config->is64 ? INT64_MAX : UINT32_MAX;
@@ -2829,18 +2818,6 @@ template <class ELFT> void Writer<ELFT>::openFile() {
     flags |= FileOutputBuffer::F_executable;
   if (!config->mmapOutputFile)
     flags |= FileOutputBuffer::F_no_mmap;
-  if (config->mmapOutputFile) {
-    // LLD relies on [fallocate] to mmap the output.
-    // In case there's no space left on the device
-    // it will error with SIGBUS, which is confusing
-    // for users
-    auto ErrOrSpaceInfo = sys::fs::disk_space(parentPathOrDot(config->outputFile));
-    if (!ErrOrSpaceInfo)
-      error("Can't get remaining size on disk");
-    if (ErrOrSpaceInfo.get().free < fileSize)
-        error("failed to open " + config->outputFile + ": " +
-              "No Space Left on Device");
-  }
   Expected<std::unique_ptr<FileOutputBuffer>> bufferOrErr =
       FileOutputBuffer::create(config->outputFile, fileSize, flags);