From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f72.google.com (mail-pg0-f72.google.com [74.125.83.72]) by kanga.kvack.org (Postfix) with ESMTP id AEFC96B0006 for ; Thu, 21 Jun 2018 19:16:17 -0400 (EDT) Received: by mail-pg0-f72.google.com with SMTP id n20-v6so222030pgv.14 for ; Thu, 21 Jun 2018 16:16:17 -0700 (PDT) Received: from out4436.biz.mail.alibaba.com (out4436.biz.mail.alibaba.com. [47.88.44.36]) by mx.google.com with ESMTPS id q2-v6si5857757plh.136.2018.06.21.16.16.15 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 Jun 2018 16:16:16 -0700 (PDT) From: Yang Shi Subject: [v2 PATCH 2/2] mm: thp: inc counter for collapsed shmem THP Date: Fri, 22 Jun 2018 07:15:49 +0800 Message-Id: <1529622949-75504-2-git-send-email-yang.shi@linux.alibaba.com> In-Reply-To: <1529622949-75504-1-git-send-email-yang.shi@linux.alibaba.com> References: <1529622949-75504-1-git-send-email-yang.shi@linux.alibaba.com> Sender: owner-linux-mm@kvack.org List-ID: To: hughd@google.com, kirill.shutemov@linux.intel.com, vbabka@suse.cz, akpm@linux-foundation.org Cc: yang.shi@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org /sys/kernel/mm/transparent_hugepage/khugepaged/pages_collapsed is used to record the counter of collapsed THP, but it just gets inc'ed in anonymous THP collapse path, do this for shmem THP collapse too. Signed-off-by: Yang Shi Cc: Hugh Dickins Cc: Kirill A. Shutemov Cc: Vlastimil Babka --- v1 --> v2: * Seperate from the previous patch per Kirill's comment mm/khugepaged.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 9b0ec30..4018826 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -1521,6 +1521,8 @@ static void collapse_shmem(struct mm_struct *mm, unlock_page(new_page); *hpage = NULL; + + khugepaged_pages_collapsed++; } else { /* Something went wrong: rollback changes to the radix-tree */ shmem_uncharge(mapping->host, nr_none); -- 1.8.3.1