---------------------------------------- > Date: Thu, 9 Apr 2015 21:24:41 -0700 > From: akpm@xxxxxxxxxxxxxxxxxxxx > To: neilzhang1123@xxxxxxxxxxx > CC: linux-mm@xxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > Subject: Re: [PATCH v2] mm: show free pages per each migrate type > > On Fri, 10 Apr 2015 04:16:15 +0000 ZhangNeil <neilzhang1123@xxxxxxxxxxx> wrote: > >>> I think we can eliminate nr_free[][]: >> >> what about make it as global__variable? > > That isn't as good - it permanently consumes memory and really requires > new locking to protect the array from concurrent callers. > Then it may need to change the code a lot. BTW: I calculate the nr_free[][] again, it is an 6x11 array of 8 in the worst case, that is 528B, is it acceptable? Best Regards, Neil Zhang -- 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