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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E3470C433EF for ; Thu, 7 Apr 2022 08:14:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241152AbiDGIQs (ORCPT ); Thu, 7 Apr 2022 04:16:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48772 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235249AbiDGIQp (ORCPT ); Thu, 7 Apr 2022 04:16:45 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 325281CA3A7 for ; Thu, 7 Apr 2022 01:14:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1649319285; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9Lyv9WEhdyF3oLfvXgOyFMO/pRHVMB4/iOYwuxruItQ=; b=IZJOUm0WUtn+O145YRhcr2ybPVKD0H7TfBH1AODXiQkWFPB/lurQWCJZHjsgctqvqoTi/S WGCDF4KQup+6Xc8qBQVfDQz/yL5OVgYHrg8wDl+NRl0IeWrKUgRnqheNrZmGVxSRnc5Qke 8pvi5Vrjyq6EGUIki+AVPk4LPXiCEmM= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-427-GFYXAgSxNnWwZCmI0BlKBA-1; Thu, 07 Apr 2022 04:14:43 -0400 X-MC-Unique: GFYXAgSxNnWwZCmI0BlKBA-1 Received: by mail-wm1-f70.google.com with SMTP id c19-20020a05600c4a1300b0038e6b4a104cso4231827wmp.9 for ; Thu, 07 Apr 2022 01:14:43 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:organization:in-reply-to :content-transfer-encoding; bh=9Lyv9WEhdyF3oLfvXgOyFMO/pRHVMB4/iOYwuxruItQ=; b=lFrbvs6jUc+1FfaskWuNTsnrdi20g/tzmnVAVjMvXQMHUlHHEfe/DJVe0imezl4emz TcGA0BJe+7OrhlR22ANQ15bg59rqQonKkzRpd3eC/1Q0p18GTQ4k3ZsqH6M0DKjwOZBi zrS0gGhIph8xE4lNcHc3QlPA4vHWym3wb6YucsKeoZXoIfE44An4rZiv5VQXUkEb5vO5 fiZnOkRt3SDw2sCWMspclVqJs4rKbkwZuQzIHHCAQ8gNKKPOTNCRo6EycrF38TJyPbLR C4V4JcMUj/wVcr01tXKCydjqnY7y4AOSaP1Wfnr8ItpfK2K6fEORqYBYf2E/bzRjFYqX FXlw== X-Gm-Message-State: AOAM531qCZlMh4xclcqMVFXdF+5g8aokrm7BvaSebCLQTCmylEeEgHVf MHAJR7UA81kHi3VByN28lbxvtY7vgGxEgZfq0ij6V/qE6gnaomKnVFGoUewDeP8cf4SDP9gF3Wh mXkUaye7CNiz64Zt3XIB+cFf4 X-Received: by 2002:a05:6000:3:b0:206:1215:d7e9 with SMTP id h3-20020a056000000300b002061215d7e9mr9375167wrx.386.1649319282505; Thu, 07 Apr 2022 01:14:42 -0700 (PDT) X-Google-Smtp-Source: ABdhPJy1iPP/kjMynSz3lJrgFtsqgnN7PfQoJzaf/dXuPzi9u5f+qlGqUXNaWIrFVbJf9SbuUzMj5g== X-Received: by 2002:a05:6000:3:b0:206:1215:d7e9 with SMTP id h3-20020a056000000300b002061215d7e9mr9375145wrx.386.1649319282115; Thu, 07 Apr 2022 01:14:42 -0700 (PDT) Received: from ?IPV6:2a09:80c0:192:0:20af:34be:985b:b6c8? ([2a09:80c0:192:0:20af:34be:985b:b6c8]) by smtp.gmail.com with ESMTPSA id h9-20020a05600c350900b0038cbcbcf994sm7369893wmq.36.2022.04.07.01.14.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 Apr 2022 01:14:41 -0700 (PDT) Message-ID: Date: Thu, 7 Apr 2022 10:14:40 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.6.2 Subject: Re: [PATCH] /dev/[k]mem: make reads and writes interruptible Content-Language: en-US To: "Jason A. Donenfeld" , linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org Cc: Tetsuo Handa References: <20220407001327.109095-1-Jason@zx2c4.com> From: David Hildenbrand Organization: Red Hat In-Reply-To: <20220407001327.109095-1-Jason@zx2c4.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07.04.22 02:13, Jason A. Donenfeld wrote: > In 8619e5bdeee8 ("/dev/mem: Bail out upon SIGKILL."), /dev/[k]mem became > killable, and that commit noted: > > Theoretically, reading/writing /dev/mem and /dev/kmem can become > "interruptible". But this patch chose "killable". Future patch will > make them "interruptible" so that we can revert to "killable" if > some program regressed. > > So now we take the next step in making it "interruptible", by changing > fatal_signal_pending() into signal_pending(). /dev/kmem is no more. So this should only apply to /dev/mem nowadays. -- Thanks, David / dhildenb