[Ocfs2-devel] o2net_fill_node_map reviews, thanks

[Zhangguanghui <zhang.guanghui@h3c.com>]

Hi
1. in the callback o2net_fill_node_map -> o2net_tx_can_proceed()
2. if the function o2net_tx_can_proceed returns false,  then "ret" and sc are uninialized,
and re-using the value from the previous iteration.  I think this is not reasonable.
I do not know whether to hide a bug.
checking the return value is harmless and robustness.

Finally, any feedback about this process (positive or negative) would be  greatly appreciated.

/* Get a map of all nodes to which this node is currently connected to */

void o2net_fill_node_map(unsigned long *map, unsigned bytes)
{
        struct o2net_sock_container *sc = NULL;
        int node, ret = 0;
        BUG_ON(bytes < (BITS_TO_LONGS(O2NM_MAX_NODES) * sizeof(unsigned long)));
        memset(map, 0, bytes);
        for (node = 0; node < O2NM_MAX_NODES; ++node) {
                if (!o2net_tx_can_proceed(o2net_nn_from_num(node), &sc, &ret))
                        continue;
                if (!ret) {
                        set_bit(node, map);
                        sc_put(sc)

               }

              +   sc = NULL;

              +  ret=0;

        }
}

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