Re: [Linux-ia64] libc umount and umount2 can't both be right

From: Andreas Schwab <schwab_at_suse.de>
Date: 2003-05-15 00:43:24
"MONTGOMERY,BOB (HP-FtCollins,ex1)" <bob.montgomery@hp.com> writes:

|> The problem:  On IA64, the implementation of umount(2) in glibc
|> and of sys_umount in the kernel results in the kernel performing
|> umounts with essentially random flag words.

[ SYS_umount is actually umount2 on ia64 ]

Here is a patch:

2003-05-14  Andreas Schwab  <schwab@suse.de>

	* sysdeps/unix/sysv/linux/ia64/umount.c: New file.

--- /dev/null	2003-03-21 07:28:43.000000000 +0100
+++ sysdeps/unix/sysv/linux/ia64/umount.c	2003-05-14 14:33:40.000000000 +0200
@@ -0,0 +1,31 @@
+/* umount system call for Linux/ia64.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sys/mount.h>
+#include <errno.h>
+
+#include <sysdep.h>
+#include <bp-checks.h>
+
+/* Unmount a filesystem.  */
+int
+umount (const char *special_file)
+{
+  return INLINE_SYSCALL (umount, 2, CHECK_STRING (special_file), 0);
+}

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."
Received on Wed May 14 07:43:33 2003

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