From patchwork Thu Nov 26 13:29:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Andrzej Siewior X-Patchwork-Id: 333389 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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS 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 B7C71C63697 for ; Thu, 26 Nov 2020 13:30:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6A569221F1 for ; Thu, 26 Nov 2020 13:30:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="IZAPLh/g"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="+R2H2APu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389909AbgKZNaM (ORCPT ); Thu, 26 Nov 2020 08:30:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56700 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389545AbgKZNaM (ORCPT ); Thu, 26 Nov 2020 08:30:12 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1ED31C0613D4 for ; Thu, 26 Nov 2020 05:30:12 -0800 (PST) From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1606397410; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=gKWNXrO69ijmKr06RgReA2B5m0/QsKYm+ymsyZGidRw=; b=IZAPLh/gPNV9SPkRo5yU1iTFK2/RrPlGshE5xGaEscU4ZuVttcZeo8LCMhGjngrzr6Z4Fa RjhoNwUG3NSiIaZERsAQOJzWNFekPczy4i6MGab1QY2E98qwzxeF7hvMi03qV4a3FRsR/s 7gBn0v66mzB6Hky27bu+XAThgaiUNGfKbQXkIN0Ko4nan3q9+c5rXv0zCzG8FwmCtB8Aq9 d3niDoJvLMkOGWxvO5scPZynOgG39NbvfVTsMZKdzr5XPCZiqIhU9e9l6feac7WntRLVlL HaXm6UApmSErfYhI+rgP6gl9evci+6xqtIazLqZYBCIuijSGv0lE6VXp/tsuYA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1606397410; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=gKWNXrO69ijmKr06RgReA2B5m0/QsKYm+ymsyZGidRw=; b=+R2H2APu+AeyvL7q0xCnCAAFOiwwYoumjtb91uMyFvik8JqRH5A+Ow4NjnUvqyNBVPrC/S iP/Qh8jpnmGsU8Cw== To: linux-scsi@vger.kernel.org Cc: Finn Thain , GR-QLogic-Storage-Upstream@marvell.com, Hannes Reinecke , Jack Wang , John Garry , linux-m68k@lists.linux-m68k.org, Manish Rangankar , Michael Schmitz , MPT-FusionLinux.pdl@broadcom.com, Nilesh Javali , Sathya Prakash , Sreekanth Reddy , Suganath Prabu Subramani , Vikram Auradkar , Xiang Chen , Xiaofei Tan , "James E . J . Bottomley" , "Martin K . Petersen" , Thomas Gleixner , "Ahmed S . Darwish" , Sebastian Andrzej Siewior Subject: [PATCH 00/14] scsi: Remove in_interrupt() usage. Date: Thu, 26 Nov 2020 14:29:38 +0100 Message-Id: <20201126132952.2287996-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Folks, in the discussion about preempt count consistency across kernel configurations: https://lore.kernel.org/r/20200914204209.256266093@linutronix.de/ it was concluded that the usage of in_interrupt() and related context checks should be removed from non-core code. This includes allocation mode (GFP_*) decisions and avoidance of code paths which might sleep. In the long run, usage of 'preemptible, in_*irq etc.' should be banned from driver code completely. This series addresses most of the SCSI subsystem. The first three patches have Fixes tags and address bugs were noticed during review. Sebastian Acked-by: Jack Wang > --- Reviewed-by: Daniel Wagner