shithub: riscv

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exportfs: fix clunk of first attach with -S

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.

--- 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;	

 }

-- 

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