quoting << Martin_Blapp

-	Completly changed the internals of umount(8). We do three
	checks now to see if 'argv' is in the mounttable. It they
	all fail, we return to main and print a warning.

-	fixed the umount mount-order. The checks are rather complex
	to do this. Cause umount(8) should also be able to unmount
	several devices at once ('umount -a', 'umount -A',
	'umount /mnt /mnt2'), the mount-order get's important.
	I added checks to mark and unmark already unmounted devices.

- 	Various fixes with nfs-unmounts (no rpc-calls were done,
	or they were done although there was an existing mount).
	Since we allow overlay-mounts, we should also handle them
	properly.

-	Translate the deprecated nfs-syntax with '@' to ':' like
	mount_nfs does. The ':' syntax has now precedence, but '@'
	still works.

-	'umount -v' is now fixed for all cases and doesn't print
	garbage like two times the mountpoint etc.

-	removed non documented and useless umount '-F'.

-	hanged nfsmounts can now unmounted 'without' any problems.
	I've removed stat() and realpath() checks on the mountpoint.
	Instead we just do a realpath() on the basedir of the
	mountpath and add the dirname again.
	Implemented this as an idea from phk. But there are still
	vfs-restrictions if the nfs_mount is busy. If there are
	unwritten metadata on a hanged nfs-mount, and we modify
	nfs_vfsops.c to not return EBUSY, we get a deadlock :(
	The problem has now moved from userland to kernel.

-	removed the BUGS part from the umount(8) manpage.

-	Converted it to ANSI C (more than 60% of the code have
	changed).

Martin_Blapp

Fixed PR's
----------

o [1999/02/03] bin/9893                 NFS umount of regular file impossible

s [1995/11/27] bin/841			stale nfs mounts cannot be umounted

o [1999/08/01] bin/12911	alfred  NFS umounts are not properly done
					if just the mountpoint gets umounted

Only partially solved:
----------------------

The problem is now in kernel:

o [1999/04/07] bin/11005		`umount -f' does not work if the
					NFS-server is down.

PR:		bin/9893 bin/841 bin/12911 bin/11005
Submitted by:	Martin Blapp <mb@imp.ch>

0 files changed, 0 insertions, 0 deletions