Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754778AbYJPP6p (ORCPT ); Thu, 16 Oct 2008 11:58:45 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754522AbYJPP6g (ORCPT ); Thu, 16 Oct 2008 11:58:36 -0400 Received: from gir.skynet.ie ([193.1.99.77]:54150 "EHLO gir.skynet.ie" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751255AbYJPP6g (ORCPT ); Thu, 16 Oct 2008 11:58:36 -0400 From: Mel Gorman To: Andrew Morton Cc: Alexey Dobriyan , Dave Hansen , KOSAKI Motohiro , Linux-MM , LKML , Mel Gorman Subject: [PATCH 0/2] Report the size of pages backing VMAs in /proc V3 Date: Thu, 16 Oct 2008 16:58:33 +0100 Message-Id: <1224172715-17667-1-git-send-email-mel@csn.ul.ie> X-Mailer: git-send-email 1.5.6.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1509 Lines: 33 The following two patches add support for printing the size of pages used by the kernel and the MMU to back VMAs. This can be used by a user to verify that a hugepage-aware application is using the expected page sizes. The first patch prints the size of page used by the kernel when allocating pages for a VMA in /proc/pid/smaps. The second patch reports on the size of page used by the MMU as it can differ - for example on POWER using 64K as a base pagesize on older processors. Changelog since V2 o Drop changes to /proc/pid/maps - could not get agreement and it affects procps. Patch to procps was posted but fell into silence. Dropping patch as smaps gives the necessary information, just with a bit more legwork by the user o Drop redundant VM_BUG_ON (Alexey) Changelog since V1 o Fix build failure on !CONFIG_HUGETLB_PAGE o Uninline helper functions o Distinguish between base pagesize and MMU pagesize arch/powerpc/include/asm/hugetlb.h | 6 ++++++ arch/powerpc/mm/hugetlbpage.c | 7 +++++++ fs/proc/task_mmu.c | 8 ++++++-- include/linux/hugetlb.h | 6 ++++++ mm/hugetlb.c | 29 +++++++++++++++++++++++++++++ 5 files changed, 54 insertions(+), 2 deletions(-) -- 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/