This patch didn't make it into 2.4.21. Zou Pengcheng's original patch
was whitespace-damaged, so here's a fresh copy against 2.4.21.
Issue DN_MODIFY on writev, and DN_ACCESS on readv, rather than vice versa.
I can provide a testcase if anyone wants one.
----- Forwarded message from Zou Pengcheng <email@example.com> -----
From: Zou Pengcheng <firstname.lastname@example.org>
To: Marcelo Tosatti <email@example.com>
Subject: [PATCH] dnotify fix for readv/writev (Linux 2.4.20)
Date: Mon, 2 Dec 2002 09:22:43 +0800
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.
-- Pengcheng Zou
diff -uNr fs/read_write.c.orig fs/read_write.c
----- End forwarded message -----
--- linux-2.4.21/fs/read_write.c Fri Jun 13 09:51:37 2003
+++ linux-2.4.21-dnotify-fix/fs/read_write.c Thu Jun 19 11:55:30 2003
@@ -322,7 +322,7 @@
/* VERIFY_WRITE actually means a read, as we write to user space */
if ((ret + (type == VERIFY_WRITE)) > 0)
- (type == VERIFY_WRITE) ? DN_MODIFY : DN_ACCESS);
+ (type == VERIFY_WRITE) ? DN_ACCESS : DN_MODIFY);
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to firstname.lastname@example.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/