[Bug 2578] file write performance over NFS very poor due to dup+write+close

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=2578

------- Additional Comments From [e-mail]  2004-21-11 20:14 -------
Created an attachment (id=715)
 --> (http://bugs.winehq.org/attachment.cgi?id=715&action=view)
proposed patch

This patch works great for me.	However it may not be perfect in the face of
async io:

I notice that in ntdlls/file.c it stores the file handle from the
handle_to_fd() call in an allocated ovp structure that is passed to
register_new_async().  In that situation a dup() or a new open()+seek() should
probably be done first along with making sure whatever async code uses the fd
cleans it up later when appropriate.