Re: [9fans] Explanation of binding from ftpfs

["Iruata Souza" <iru.muzgo@gmail.com>]

On Sat, Dec 6, 2008 at 6:44 PM, Brad Frank <brad.frank@gmail.com> wrote:
> When I use ftpfs to mount a ftp site and then bind /n/ftp to another
> location. All appears to work fine in /n/ftp and in the other
> location. When I type ns, I can clearly see the pipe bind for ftpfs
> mounted to /n/ftp. When I unmount /n/ftp I can type ls on /n/ftp and
> not see anything there. But if I ls on the other location that I bound
> to /n/ftp, it still can access the ftp server. How is the other
> location able to do this, when I don't see any indication of a pipe
> bind still listed in ns? I do see the ftpfs process running, though.
>
>

the bind shows here, like it should

cpu% ns | tail -3
mount -b '#s/rio.iru.323' /dev
mount -c '#|/data1' /n/ftp
cd /usr/iru
cpu% bind /n/ftp new
cpu% ns | tail -3
mount -c '#|/data1' /n/ftp
mount  '#|/data1' /usr/iru/new
cd /usr/iru
cpu% lc /n/ftp | tail -1
pub
cpu% unmount /n/ftp
cpu% ns | tail -3
mount -b '#s/rio.iru.323' /dev
mount  '#|/data1' /usr/iru/new
cd /usr/iru
cpu% lc /n/ftp
cpu% lc new | tail -1
pub
cpu% unmount new
cpu% ns | tail -3
mount  '#s/rio.iru.323' /mnt/wsys 1
mount -b '#s/rio.iru.323' /dev
cd /usr/iru


i may be mistaken here but it seems that unmount calls cclose which
calls decref and only if the mount is the last reference to the
server, it will be freed.
the behaviour seems ok here, then.

iru