From bc08992a2e2e13b546f4f9c6e960a7274901ccf6 Mon Sep 17 00:00:00 2001
From: usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 15 Aug 2013 08:01:28 +0000
Subject: * io.c (rb_io_rewind): remove fsync() for Windows to improve the  
 performance.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42560 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog | 5 +++++
 io.c      | 5 -----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 44cf60a3d7..b1c54d0a31 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Aug 15 16:59:56 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
+
+	* io.c (rb_io_rewind): remove fsync() for Windows to improve the
+	  performance.
+
 Thu Aug 15 16:30:23 2013  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* test/fileutils/test_fileutils.rb (TestFileUtils#test_rmdir):
diff --git a/io.c b/io.c
index 8678af7c5a..9e3c39ce67 100644
--- a/io.c
+++ b/io.c
@@ -1654,11 +1654,6 @@ rb_io_rewind(VALUE io)
 
     GetOpenFile(io, fptr);
     if (io_seek(fptr, 0L, 0) < 0 && errno) rb_sys_fail_path(fptr->pathv);
-#ifdef _WIN32
-    if (GetFileType((HANDLE)rb_w32_get_osfhandle(fptr->fd)) == FILE_TYPE_DISK) {
-	fsync(fptr->fd);
-    }
-#endif
     if (io == ARGF.current_file) {
 	ARGF.lineno -= fptr->lineno;
     }
-- 
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