From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f173.google.com (mail-pd0-f173.google.com [209.85.192.173]) by kanga.kvack.org (Postfix) with ESMTP id 5F2CE6B0037 for ; Thu, 28 Nov 2013 02:46:44 -0500 (EST) Received: by mail-pd0-f173.google.com with SMTP id p10so11527274pdj.18 for ; Wed, 27 Nov 2013 23:46:44 -0800 (PST) Received: from LGEMRELSE1Q.lge.com (LGEMRELSE1Q.lge.com. [156.147.1.111]) by mx.google.com with ESMTP id ot3si25785247pac.166.2013.11.27.23.46.41 for ; Wed, 27 Nov 2013 23:46:42 -0800 (PST) From: Joonsoo Kim Subject: [PATCH 1/9] mm/rmap: recompute pgoff for huge page Date: Thu, 28 Nov 2013 16:48:38 +0900 Message-Id: <1385624926-28883-2-git-send-email-iamjoonsoo.kim@lge.com> In-Reply-To: <1385624926-28883-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1385624926-28883-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Mel Gorman , Hugh Dickins , Rik van Riel , Ingo Molnar , Naoya Horiguchi , Hillf Danton , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Joonsoo Kim , Joonsoo Kim We have to recompute pgoff if the given page is huge, since result based on HPAGE_SIZE is not approapriate for scanning the vma interval tree, as shown by commit 36e4f20af833 ("hugetlb: do not use vma_hugecache_offset() for vma_prio_tree_foreach") and commit 369a713e ("rmap: recompute pgoff for unmapping huge page"). Signed-off-by: Joonsoo Kim diff --git a/mm/rmap.c b/mm/rmap.c index 55c8b8d..1214703 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1714,6 +1714,10 @@ static int rmap_walk_file(struct page *page, int (*rmap_one)(struct page *, if (!mapping) return ret; + + if (PageHuge(page)) + pgoff = page->index << compound_order(page); + mutex_lock(&mapping->i_mmap_mutex); vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) { unsigned long address = vma_address(page, vma); -- 1.7.9.5 -- 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