Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751817Ab1FTQff (ORCPT ); Mon, 20 Jun 2011 12:35:35 -0400 Received: from mx1.redhat.com ([209.132.183.28]:35787 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751260Ab1FTQfc (ORCPT ); Mon, 20 Jun 2011 12:35:32 -0400 From: Amerigo Wang To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, Amerigo Wang , Andrea Arcangeli , Rik van Riel , Johannes Weiner , KAMEZAWA Hiroyuki , linux-mm@kvack.org Subject: [PATCH 3/3] mm: print information when THP is disabled automatically Date: Tue, 21 Jun 2011 00:34:30 +0800 Message-Id: <1308587683-2555-3-git-send-email-amwang@redhat.com> In-Reply-To: <1308587683-2555-1-git-send-email-amwang@redhat.com> References: <1308587683-2555-1-git-send-email-amwang@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1114 Lines: 33 Print information when THP is disabled automatically so that users can find this info in dmesg. Signed-off-by: WANG Cong --- mm/huge_memory.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 7fb44cc..07679da 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -544,8 +544,11 @@ static int __init hugepage_init(void) * where the extra memory used could hurt more than TLB overhead * is likely to save. The admin can still enable it through /sys. */ - if (totalram_pages < (CONFIG_TRANSPARENT_HUGEPAGE_THRESHOLD << (20 - PAGE_SHIFT))) + if (totalram_pages < (CONFIG_TRANSPARENT_HUGEPAGE_THRESHOLD + << (20 - PAGE_SHIFT))) { + printk(KERN_INFO "hugepage: disabled auotmatically\n"); transparent_hugepage_flags = 0; + } start_khugepaged(); -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/