Hi, In previous discussion [1] on "extend hugepage migration" patches, Michal and Kosaki-san commented that in the patch "migrate: add migrate_entry_wait_huge()" we need to solve the issue in the arch-independent manner and had better care USE_SPLIT_PTLOCK=y case. So this patch(es) does that. I made sure that the patched kernel shows no regression in functional tests of libhugetlbfs. [1]: http://thread.gmane.org/gmane.linux.kernel.mm/96665/focus=96661 Thanks, Naoya Horiguchi -- 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>