fix removing path from inode2path

weed/mount/inode_to_path.go

@@ -34,8 +34,8 @@ func (ie *InodeEntry) removeOnePath(p util.FullPath) bool {
 	if idx < 0 {
 		return false
 	}
-	for x := len(ie.paths) - 2; x > idx; x-- {
-		ie.paths[x-1] = ie.paths[x]
+	for x := idx; x < len(ie.paths)-1; x++ {
+		ie.paths[x] = ie.paths[x+1]
 	}
 	ie.paths = ie.paths[0 : len(ie.paths)-1]
 	return true

weed/mount/inode_to_path_test.go

@@ -13,6 +13,15 @@ func TestInodeEntry_removeOnePath(t *testing.T) {
 		want  bool
 		count int
 	}{
+		{
+			name: "actual case",
+			entry: InodeEntry{
+				paths: []util.FullPath{"/pjd/nx", "/pjd/n0"},
+			},
+			p:     "/pjd/nx",
+			want:  true,
+			count: 1,
+		},
 		{
 			name:  "empty",
 			entry: InodeEntry{},
@@ -74,6 +83,11 @@ func TestInodeEntry_removeOnePath(t *testing.T) {
 			if tt.count != len(tt.entry.paths) {
 				t.Errorf("removeOnePath path count = %v, want %v", len(tt.entry.paths), tt.count)
 			}
+			for i, p := range tt.entry.paths {
+				if p == tt.p {
+					t.Errorf("removeOnePath found path still exists at %v, %v", i, p)
+				}
+			}
 		})
 	}
 }