From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by uproxy.gmail.com with SMTP id h2so36025ugf for ; Wed, 22 Mar 2006 00:59:33 -0800 (PST) Message-ID: Date: Wed, 22 Mar 2006 03:59:33 -0500 From: "Stone Wang" Subject: Re: PATCH][1/8] 2.6.15 mlock: make_pages_wired/unwired In-Reply-To: <44209A26.3040102@yahoo.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Content-Disposition: inline References: <441FEFB4.6050700@yahoo.com.au> <44209A26.3040102@yahoo.com.au> Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: akpm@osdl.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: 2006/3/21, Nick Piggin : > Stone Wang wrote: > > We dont account HugeTLB pages for: > > > > 1. HugeTLB pages themselves are not reclaimable. > > > > 2. If we count HugeTLB pages in "Wired",then we would have no mind > > how many of the "Wired" are HugeTLB pages, and how many are > > normal-size pages. > > Thus, hard to get a clear map of physical memory use,for example: > > how many pages are reclaimable? > > If we must count HugeTLB pages,more fields should be added to > > "/proc/meminfo", > > for exmaple: "Wired HugeTLB:", "Wired Normal:". > > > > Then why do you wire them at all? Your unwire function does not appear > to be able to unwire them. We didnt wire them. Check get_user_pages(): /* We dont account wired HugeTLB pages */ if (is_vm_hugetlb_page(vma)) { i = follow_hugetlb_page(mm, vma, pages, vmas, &start, &len, i); continue; } Shaoping Wang > > -- > SUSE Labs, Novell Inc. > Send instant messages to your online friends http://au.messenger.yahoo.com > > -- 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