From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02512C32792 for ; Thu, 3 Oct 2019 18:51:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D1C9A20862 for ; Thu, 3 Oct 2019 18:51:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731472AbfJCSvM (ORCPT ); Thu, 3 Oct 2019 14:51:12 -0400 Received: from mga02.intel.com ([134.134.136.20]:50362 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726677AbfJCSvL (ORCPT ); Thu, 3 Oct 2019 14:51:11 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Oct 2019 11:51:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,253,1566889200"; d="scan'208";a="216913947" Received: from jvalevi1-mobl1.ger.corp.intel.com (HELO localhost) ([10.251.93.117]) by fmsmga004.fm.intel.com with ESMTP; 03 Oct 2019 11:51:07 -0700 From: Jarkko Sakkinen To: linux-integrity@vger.kernel.org Cc: Jarkko Sakkinen , Mimi Zohar , Jerry Snitselaar , James Bottomley , Sumit Garg , Stefan Berger , Jason Gunthorpe , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v3 0/2] tpm: Detach page allocation from tpm_buf Date: Thu, 3 Oct 2019 21:51:01 +0300 Message-Id: <20191003185103.26347-1-jarkko.sakkinen@linux.intel.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As has been seen recently, binding the buffer allocation and tpm_buf together is sometimes far from optimal. The buffer might come from the caller namely when tpm_send() is used by another subsystem. In addition we can stability in call sites w/o rollback (e.g. power events)> Take allocation out of the tpm_buf framework and make it purely a wrapper for the data buffer. Link: https://patchwork.kernel.org/patch/11146585/ Cc: Mimi Zohar Cc: Jerry Snitselaar Cc: James Bottomley Cc: Sumit Garg Cc: Stefan Berger Jarkko Sakkinen (2): tpm: Use GFP_KERNEL for allocating struct tpm_buf tpm: Detach page allocation from tpm_buf drivers/char/tpm/tpm-sysfs.c | 19 ++- drivers/char/tpm/tpm.h | 40 ++--- drivers/char/tpm/tpm1-cmd.c | 114 +++++++++---- drivers/char/tpm/tpm2-cmd.c | 265 +++++++++++++++++++----------- drivers/char/tpm/tpm2-space.c | 64 +++++--- drivers/char/tpm/tpm_vtpm_proxy.c | 24 +-- 6 files changed, 333 insertions(+), 193 deletions(-) -- 2.20.1