This patchset is triggered by Xiojun's report of ltp test fail[1], and I have sent a patch to resolve it by check nodes_empty of new_nodes[2]. The new version is to follow Vlastimil's suggestion, which fix by checking the new_nodes value in function get_nodes. And I just split them to small patches for easy to review and discussion. For more detail, please look into each patches. Change logs of v3: * remove patch get_nodes's mask miscalculation * check whether node is empty after AND current task node, and then nodes which have memory. Change logs of v2: * fix get_nodes's mask miscalculation * remove redundant check in get_nodes * fix the check of nodemask from user - per Vlastimil Any comment and complain is welome. Thanks Yisheng Xie [1] https://patchwork.kernel.org/patch/10012005/ [2] https://patchwork.kernel.org/patch/10013329/ Yisheng Xie (3): mm/mempolicy: remove redundant check in get_nodes mm/mempolicy: fix the check of nodemask from user mm/mempolicy: add nodes_empty check in SYSC_migrate_pages mm/mempolicy.c | 35 +++++++++++++++++++++++++++-------- 1 file changed, 27 insertions(+), 8 deletions(-) -- 1.8.3.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
