From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 13 Jun 2008 18:03:48 -0400 From: Rik van Riel Subject: Re: 2.6.26-rc5-mm2 (swap_state.c:77) Message-ID: <20080613180348.55d3fb67@bree.surriel.com> In-Reply-To: References: <20080609223145.5c9a2878.akpm@linux-foundation.org> <200806101848.22237.nickpiggin@yahoo.com.au> <20080611140902.544e59ec@bree.surriel.com> <200806120958.38545.nickpiggin@yahoo.com.au> <20080612152905.6cb294ae@cuia.bos.redhat.com> <20080613134507.3f08820e@cuia.bos.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Hugh Dickins Cc: Nick Piggin , Andrew Morton , linux-kernel@vger.kernel.org, kernel-testers@vger.kernel.org, linux-mm@kvack.org List-ID: On Fri, 13 Jun 2008 22:15:01 +0100 (BST) Hugh Dickins wrote: > > I guess we'll need per-mapping flags to help determine where > > a page goes at add_to_page_cache_lru() time. > > The better way would be to add a backing_dev_info flag. (At one > point I had been going to criticize your per-mapping AS_UNEVICTABLE, > to say that one should be a backing_dev_info flag; but no, you're > right, you've the SHM_LOCK case where it has to be per-mapping.) Good point. I'll take a look at that. > > > Am I right to think that the memcontrol stuff is now all broken, > > > because memcontrol.c hasn't yet been converted to the more LRUs? > > > Certainly I'm now hanging when trying to run in a restricted memcg. > > > > I believe memcontrol has been converted. Of course, maybe > > they changed some stuff under me that I didn't notice :( > > Ah, yes, there are NR_LRU_LISTS arrays in there now, so it has > the appearance of having been converted. Fine, then it's worth > my looking into why it isn't actually working as intended. I believe that Lee and Kosaki-san have tested this code, so the breakage could be pretty new. -- All rights reversed. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org