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=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=unavailable 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 5F134C43381 for ; Mon, 25 Mar 2019 16:05:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2168A20830 for ; Mon, 25 Mar 2019 16:05:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="kM1bDTqX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729665AbfCYQFw (ORCPT ); Mon, 25 Mar 2019 12:05:52 -0400 Received: from mail-it1-f196.google.com ([209.85.166.196]:55708 "EHLO mail-it1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728991AbfCYQFu (ORCPT ); Mon, 25 Mar 2019 12:05:50 -0400 Received: by mail-it1-f196.google.com with SMTP id z126so14750446itd.5 for ; Mon, 25 Mar 2019 09:05:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=GUFOU35B7Gwb+O4xskamxpAhcSVh6PbVKYXgEQZRO+Q=; b=kM1bDTqX+FdEgontXPPC6ql34nIFdD/piaDRq0c/Cs2rKWiCOhnFJW5Lm5ptAS8SyD 6Qs4XdfgxFfd3pxNTH/XqahXowd6jHWotlBI67CMaXhVwVl8UY6GFmxevIaCOzO+cjU9 20TOaUpKyKruMyZDdR6fdGeOkkRfkO2oL4nN0S++VXtUvgUxs4VXmgWb4VrT+QnneYyL mxziuRyJqgNr+hAP1/xfh1II/vuMILF8GCi/n0gKg1NW9kvez5xi3ZX3EF3aUdSKTUN/ 01WES8nwQ2jqrtcVhWbZRw9XKxylLbI9RQPyFWwFmuMuaJfeAVmEIPK7WsITLTH35GkM jvPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=GUFOU35B7Gwb+O4xskamxpAhcSVh6PbVKYXgEQZRO+Q=; b=kgSVYOlJjSV80vGOgk4DRt0EnT6n3q2fYS/bnQ/YEnmi4cljgEmgP+FrZDTC8n/mR5 x0N353wpTNkmm+yPNDnhw+mnTQIYydm4peQgvKi1sWjEIo6MqubDGtYBw1MM5+dHcsqJ FxCUHxXFrCnm16y3XGDM+Bks4iCCX+yz2x8R+mCotvqMw8TbbqhFSl7fyMrtWapb+GCh cf0RHb2HiybK27KSx18ZJvAuuiGByaERLfEByQORP79F/ORktV1e0wYGJgTmpiSr1BTn 5IjIcw1AcZ2BSp9eku7hHi8vEEXdb3SxRNLZodOkf5nq0JYNS64/jwLKLutAq5Bj4/U8 OfNQ== X-Gm-Message-State: APjAAAXhQdPmJTFQVlHau+S67bCIqD//P8nJFSwS/acx7GpKSj1iIBJ2 fzJqKwVUBjK/uO51Aa02hDMW1dnH8uTw3w== X-Google-Smtp-Source: APXvYqxS56INjeKLDTNRuTu+ckQ00rmslbDoij1E90Td+4AqDD384cKRSx3Nevu0YXARPVl4BcYAjw== X-Received: by 2002:a02:b55d:: with SMTP id z29mr18751043jaj.49.1553529949326; Mon, 25 Mar 2019 09:05:49 -0700 (PDT) Received: from [192.168.1.158] ([216.160.245.98]) by smtp.gmail.com with ESMTPSA id s124sm5911042itb.42.2019.03.25.09.05.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 25 Mar 2019 09:05:48 -0700 (PDT) Subject: Re: [PATCH 1/2] io_uring: fix big-endian compat signal mask handling To: Arnd Bergmann , Andrew Morton Cc: Alexander Viro , Hannes Reinecke , Matthew Wilcox , David Hildenbrand , Nikolay Borisov , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org References: <20190325143521.34928-1-arnd@arndb.de> From: Jens Axboe Message-ID: Date: Mon, 25 Mar 2019 10:05:47 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 MIME-Version: 1.0 In-Reply-To: <20190325143521.34928-1-arnd@arndb.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/25/19 8:34 AM, Arnd Bergmann wrote: > On big-endian architectures, the signal masks are differnet > between 32-bit and 64-bit tasks, so we have to use a different > function for reading them from user space. > > io_cqring_wait() initially got this wrong, and always interprets > this as a native structure. This is ok on x86 and most arm64, > but not on s390, ppc64be, mips64be, sparc64 and parisc. Thanks Arnd, applied. Was there a 2/2 patch? I only received this one, 1/2. -- Jens Axboe