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 */ne 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; } } ------------------------------------------------------------------------------------------------------------------------------------- ???????????????????????????????????????? ???????????????????????????????????????? ???????????????????????????????????????? ??? This e-mail and its attachments contain confidential information from H3C, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -------------- next part -------------- An HTML attachment was scrubbed... URL: http://oss.oracle.com/pipermail/ocfs2-devel/attachments/20150606/3109a652/attachment-0001.html -------------- next part -------------- A non-text attachment was scrubbed... Name: o2net_fill_node_map reviews, thanks.eml Type: application/octet-stream Size: 7572 bytes Desc: o2net_fill_node_map reviews, thanks.eml Url : http://oss.oracle.com/pipermail/ocfs2-devel/attachments/20150606/3109a652/attachment-0001.obj