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From: Zou Pengcheng <pczou@redflag-linux.com>
Organization: RedFlag Linux
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Subject: [PATCH] dnotify fix for readv/writev (Linux 2.4.20)
Date: Mon, 2 Dec 2002 09:22:43 +0800
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hi, Marcelo,

this is a patch to fix the dnotify bug of readv/writev. 

Orignally DN_MODIFY is issued on readv while DN_ACCESS is issued on writev, 
which is obviously wrong. This patch fixes such problem.

cheers,
  -- Pengcheng Zou

diff -uNr fs/read_write.c.orig fs/read_write.c
--- fs/read_write.c.orig        Mon Dec  2 09:07:34 2002
+++ fs/read_write.c     Mon Dec  2 09:08:26 2002
@@ -315,7 +315,7 @@
        /* VERIFY_WRITE actually means a read, as we write to user space */
        if ((ret + (type == VERIFY_WRITE)) > 0)
                dnotify_parent(file->f_dentry,
-                       (type == VERIFY_WRITE) ? DN_MODIFY : DN_ACCESS);
+                       (type == VERIFY_WRITE) ? DN_ACCESS : DN_MODIFY);
        return ret;
 }