在 2020/10/30 下午10:04, Johannes Weiner 写道: >>> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> >>> >>> This should go in before the previous patch that adds the WARN for it. >> Right, but than the long ops may not weird. Should I remove the ops and resend the whole patchset? > You mean the warning in the changelog? I think that's alright. You can > just say that you're about to remove the !page->memcg check in the > next patch because the original reasons for having it are gone, and > memcg being disabled is the only remaining exception, so this patch > makes that check explicit in preparation for the next. > > Sorry, it's all a bit of a hassle, I just wouldn't want to introduce a > known warning into the kernel between those two patches (could confuse > bisection runs, complicates partial reverts etc.) H Johannes, I see, I will exchange the 1st and 2nd patch place with above comments in commit log. I guess you could give more comments on other patches, so I am going to wait you for more comments and send v21 as a whole. :) Many thanks! Alex