Re: [9front] [PATCH] exportfs: fix clunk of first attach with -S

[ori@eigenstate.org]

Quoth Michael Forney <mforney@mforney.org>:
> 
> 0 is a valid mid so should not be used as a nil value, since then the
> first mount (mid=0) will never be unmounted.

ok by me.

> ---
> diff 8e2c59136fe37143189f1dca81f53d7c6e11463f a8f8a2e401734a83dc6f098bf57dd4ae5b0f815b
> --- a/sys/src/cmd/exportfs/io.c
> +++ b/sys/src/cmd/exportfs/io.c
> @@ -119,7 +119,7 @@
>  	l = &fidhash(nr);
>  	for(f = *l; f != nil; f = f->next) {
>  		if(f->nr == nr) {
> -			if(f->mid) {
> +			if(f->mid != -1) {
>  				snprint(buf, sizeof(buf), "/mnt/exportfs/%d", f->mid);
>  				unmount(0, buf);
>  				psmap[f->mid] = 0;
> @@ -171,7 +171,7 @@
>  	*l = new;
>  	new->nr = nr;
>  	new->fid = -1;
> -	new->mid = 0;
> +	new->mid = -1;
>  
>  	return new;	
>  }