From patchwork Thu Oct 6 22:42:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Guilherme G. Piccoli" X-Patchwork-Id: 13000793 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55E3AC433F5 for ; Thu, 6 Oct 2022 22:42:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232112AbiJFWmk (ORCPT ); Thu, 6 Oct 2022 18:42:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34990 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231648AbiJFWmi (ORCPT ); Thu, 6 Oct 2022 18:42:38 -0400 Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2CC7FF2528; Thu, 6 Oct 2022 15:42:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Subject: Cc:To:From:Sender:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=3DIFj9UhDQc8Es3b0mNPMgQ7Igff36zxWr0mRst60bM=; b=C19vW2Xhm85s+6iglDJp3BxxbG 2sUU9/1Svm7CcfAta9Nt50fy7RpO0b5RTsFVOerQz1QzgqTtSSgEpE7I7xLwBDmoIh0pU+7gmXwek UHjdzvVxtY8seMZRShC6nxxTvi3fKE3x0IAMDgb9JME2dlGIZTEH/eKnmgo/jBaLoGkXRTx9APpej CqYoxq29/lnHPSltuK4oWHUhsqYeW/GpiWPdS/k9ehaIItbBSAgzXgsm1zrjpAabzSk/Sb2yZk1hC bzaYZU0dKVOPNqljlBUdaV20gEpRP/+Y0co7iuXNi0Q8S51/Xb1SSw+NbsPUZ7Hrg9Cupevm7A3ex JCKLnHdg==; Received: from 201-43-120-40.dsl.telesp.net.br ([201.43.120.40] helo=localhost) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1ogZZV-00C4HG-8z; Fri, 07 Oct 2022 00:42:30 +0200 From: "Guilherme G. Piccoli" To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: kernel-dev@igalia.com, kernel@gpiccoli.net, keescook@chromium.org, anton@enomsg.org, ccross@android.com, tony.luck@intel.com, "Guilherme G. Piccoli" , linux-efi@vger.kernel.org, Ard Biesheuvel Subject: [PATCH 0/8] Some pstore improvements Date: Thu, 6 Oct 2022 19:42:04 -0300 Message-Id: <20221006224212.569555-1-gpiccoli@igalia.com> X-Mailer: git-send-email 2.38.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Hi pstore maintainers, this is a small series with some improvements overall. Most of them are minors, but the implicit conversion thing is a bit more "relevant" in a sense it's more invasive and would fit more as a "fix". The code is based on v6.0, and it was tested with multiple compression algorithms (zstd, deflate, lz4, lzo, 842) and two backends (ramoops and efi_pstore) - I've used a QEMU UEFI guest and Steam Deck for this goal. My plan is to also work some ramoops improvements (for example, related to [0]); they're more complex so it's deferred for a second series, specific for that. Reviews and comments are greatly appreciated! Thanks in advance, Guilherme [0] https://lore.kernel.org/lkml/a21201cf-1e5f-fed1-356d-42c83a66fa57@igalia.com/ Guilherme G. Piccoli (8): pstore: Improve error reporting in case of backend overlap pstore: Expose kmsg_bytes as a module parameter pstore: Inform unregistered backend names as well pstore: Alert on backend write error pstore: Fix long-term implicit conversions in the compression routines MAINTAINERS: Add a mailing-list for the pstore infrastructure efi: pstore: Follow convention for the efi-pstore backend name efi: pstore: Add module parameter for setting the record size MAINTAINERS | 1 + drivers/firmware/efi/efi-pstore.c | 17 +++++--- fs/pstore/platform.c | 64 ++++++++++++++++--------------- 3 files changed, 46 insertions(+), 36 deletions(-)