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Re: [Linux-ia64] libc umount and umount2 can't both be right
- From: Andreas Schwab <schwab at suse dot de>
- To: "MONTGOMERY,BOB (HP-FtCollins,ex1)" <bob dot montgomery at hp dot com>
- Cc: linux-ia64 at linuxia64 dot org, libc-alpha at sources dot redhat dot com
- Date: Wed, 14 May 2003 16:43:24 +0200
- Subject: Re: [Linux-ia64] libc umount and umount2 can't both be right
- References: <C5C45572D968D411A1B500D0B74FF4A80CB5C80C@xfc01.fc.hp.com>
"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
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