Hi Christopher, On 2017/11/8 23:02, Christopher Lameter wrote: > On Wed, 8 Nov 2017, Yisheng Xie wrote: > >> Another case is current process is *not* the same as target process, and >> when current process try to migrate pages of target process from old_nodes >> to new_nodes, the new_nodes should be a subset of target process cpuset. > > The caller of migrate_pages should be able to migrate the target process > pages anywhere the caller can allocate memory. If that is outside the > target processes cpuset then that is fine. Pagecache pages that are not > allocated by the target process already are not subject to the target > processes restriction. So this is not that unusual. So there is no need to check the restriction of target process cpuset, right? I hope that I do not miss anything :) Thanks Yisheng Xie > > . > -- 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>
