Re: [PATCH] retry force umount (was Re: NFS and umount -f)

[viro]

On Wed, Jun 23, 2004 at 04:42:55PM -0700, Daniel McNeil wrote:
> This works for me on 2.6.7 as well.  However, I would get EBUSY back
> if processes were hung doing nfs operations to the downed server.
> The processes would get unstuck and get EIO, but the umount would
> still fail.  Doing a 2nd umount -f with no processes waiting for
> the server would succeed.  This patch retries force umounts in
> the kernel an extra time after giving them time to wake up and
> get out of the kernel.  It doesn't seem quite right to fail
> a bunch of nfs operations and leave the file system mounted.

Is there any reason to do that in the kernel?  What, umount(8) can't do the
same?
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