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=-4.0 required=3.0 tests=BAYES_00,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 6DFACC433B4 for ; Mon, 19 Apr 2021 18:15:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E88E6127C for ; Mon, 19 Apr 2021 18:15:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240798AbhDSSPs (ORCPT ); Mon, 19 Apr 2021 14:15:48 -0400 Received: from mail-pj1-f53.google.com ([209.85.216.53]:42877 "EHLO mail-pj1-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234035AbhDSSPr (ORCPT ); Mon, 19 Apr 2021 14:15:47 -0400 Received: by mail-pj1-f53.google.com with SMTP id j6-20020a17090adc86b02900cbfe6f2c96so19010275pjv.1; Mon, 19 Apr 2021 11:15:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=E3rIMclvEym376ZNjO3GoUMJO/w6CLT2wQYLHWQpxtQ=; b=K778rGWdQ3gPgMD4ABSxmlT+rOJ+X2qVsp2LOGfwRmPnpyJxv9jSPov3897Ndx8NHI 3D1EZBf5/ouSNlouZO+1Tah2D1D2QIsYDEil97WJOMqNVpGvfZJ06XHvEbyBdMy+Gk0X rWqcrqrIS3TmZYlGGmypapbkr5A2NKT3jX+bTAjrRvocC+BwpwF18IVG1FQGhhHvso84 q6CkrKhwfAC3lCqnT7VOaZHL2sB6UhmURXH+fa1wuKN5xP0phF121csm9oSugt8IZ0vz qW+ZSGcVrKX5wzlH5uIkIqc8MA4+/hhwwL1f/3EiXokKeCmHagqsKhKHZRujgMTheoG0 ceSw== X-Gm-Message-State: AOAM530JfxYEm+HiPH3/RIYM6IHM+jL8nKusSfyHWauIoyFVZuMIdxZ9 M7Ldo3jh+feDuVjYze7bsRI= X-Google-Smtp-Source: ABdhPJyKDzN/Cja3VJihuO6HHMkxLGcRebao2eSuVNaSaOmFppZd/gb1Ap7nadpk3RwDUWcEmJ5Vdg== X-Received: by 2002:a17:90a:e00a:: with SMTP id u10mr350108pjy.137.1618856116435; Mon, 19 Apr 2021 11:15:16 -0700 (PDT) Received: from 42.do-not-panic.com (42.do-not-panic.com. [157.230.128.187]) by smtp.gmail.com with ESMTPSA id ck5sm146841pjb.1.2021.04.19.11.15.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Apr 2021 11:15:15 -0700 (PDT) Received: by 42.do-not-panic.com (Postfix, from userid 1000) id 057C7403DC; Mon, 19 Apr 2021 18:15:15 +0000 (UTC) Date: Mon, 19 Apr 2021 18:15:14 +0000 From: Luis Chamberlain To: rafael@kernel.org, gregkh@linuxfoundation.org, viro@zeniv.linux.org.uk, jack@suse.cz, bvanassche@acm.org, jeyu@kernel.org, ebiederm@xmission.com Cc: mchehab@kernel.org, keescook@chromium.org, linux-fsdevel@vger.kernel.org, kernel@tuxforce.de, kexec@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] fs/kernel_read_file: use usermodehelper_read_trylock() as a stop gap Message-ID: <20210419181514.GM4332@42.do-not-panic.com> References: <20210416235850.23690-1-mcgrof@kernel.org> <20210416235850.23690-3-mcgrof@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210416235850.23690-3-mcgrof@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 16, 2021 at 11:58:50PM +0000, Luis Chamberlain wrote: > The endless wait for the read which the piece of hardware never got > stalls resume as sync calls are all asynchronous. Sorry, this should read: The endless wait for the read, which the piece of hardware never got, stalls resume as all pm resume calls are serialized and synchronous. Luis