[newlib-cygwin] Cygwin: /proc/sys FS: don't export NFS and DFS as block devices

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=80e35a211f69f23fa57003a08d1758657364f00e

commit 80e35a211f69f23fa57003a08d1758657364f00e
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Tue Dec 1 09:37:07 2020 +0100

    Cygwin: /proc/sys FS: don't export NFS and DFS as block devices
    
    Network filesystems are not block devices.  Apparently this code
    hasn't been executed anyway, given how network filesystems are
    hidden behind \Device\Mup.
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/fhandler_procsys.cc | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/winsup/cygwin/fhandler_procsys.cc b/winsup/cygwin/fhandler_procsys.cc
index d2540d0a1..f8abbe7c0 100644
--- a/winsup/cygwin/fhandler_procsys.cc
+++ b/winsup/cygwin/fhandler_procsys.cc
@@ -175,13 +175,10 @@ fhandler_procsys::exists (struct stat *buf)
 	 badly written. */
       if (NT_SUCCESS (status))
 	{
-	  if (ffdi.DeviceType == FILE_DEVICE_NETWORK_FILE_SYSTEM)
-	    file_type = virt_blk;
-	  else if (ffdi.DeviceType == FILE_DEVICE_NAMED_PIPE)
+	  if (ffdi.DeviceType == FILE_DEVICE_NAMED_PIPE)
 	    file_type = internal ? virt_blk : virt_pipe;
 	  else if (ffdi.DeviceType == FILE_DEVICE_DISK
 		   || ffdi.DeviceType == FILE_DEVICE_CD_ROM
-		   || ffdi.DeviceType == FILE_DEVICE_DFS
 		   || ffdi.DeviceType == FILE_DEVICE_VIRTUAL_DISK)
 	    {
 	      /* Check for file attributes.  If we get them, we peeked