From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760494AbbA2CBL (ORCPT ); Wed, 28 Jan 2015 21:01:11 -0500 Received: from aserp1050.oracle.com ([141.146.126.70]:48049 "EHLO aserp1050.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760462AbbA2CBI (ORCPT ); Wed, 28 Jan 2015 21:01:08 -0500 X-Greylist: delayed 18104 seconds by postgrey-1.27 at vger.kernel.org; Wed, 28 Jan 2015 21:01:08 EST From: Sasha Levin To: linux-kernel@vger.kernel.org Cc: iamjoonsoo.kim@lge.com, m.szyprowski@samsung.com, akpm@linux-foundation.org, lauraa@codeaurora.org, Sasha Levin Subject: [PATCH v4 0/3] mm: cma: debugfs access to CMA Date: Wed, 28 Jan 2015 14:10:08 -0500 Message-Id: <1422472211-32387-1-git-send-email-sasha.levin@oracle.com> X-Mailer: git-send-email 2.1.0 X-Source-IP: ucsinet22.oracle.com [156.151.31.94] X-Source-IP: aserp1040.oracle.com [141.146.126.69] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I've noticed that there is no interfaces exposed by CMA which would let me fuzz what's going on in there. This small patch set exposes some information out to userspace, plus adds the ability to trigger allocation and freeing from userspace. Changes from v3: - Minor build fix, sent incorrect patch for v3 Changes from v2: - Keep allocated memory lists per-cma - Don't allow partial free with non-zero order_per_bit - Use 0 alignment Changes from v1: - Make allocation and free hooks per-cma. - Remove additional debug prints. Sasha Levin (3): mm: cma: debugfs interface mm: cma: allocation trigger mm: cma: release trigger mm/Kconfig | 6 ++ mm/Makefile | 1 + mm/cma.c | 19 ++---- mm/cma.h | 20 +++++++ mm/cma_debug.c | 175 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 206 insertions(+), 15 deletions(-) create mode 100644 mm/cma.h create mode 100644 mm/cma_debug.c -- 1.7.10.4