From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f198.google.com (mail-qk0-f198.google.com [209.85.220.198]) by kanga.kvack.org (Postfix) with ESMTP id 9D2346B027E for ; Tue, 8 May 2018 08:54:18 -0400 (EDT) Received: by mail-qk0-f198.google.com with SMTP id b202so23484849qkc.6 for ; Tue, 08 May 2018 05:54:18 -0700 (PDT) Received: from resqmta-ch2-09v.sys.comcast.net (resqmta-ch2-09v.sys.comcast.net. [2001:558:fe21:29:69:252:207:41]) by mx.google.com with ESMTPS id t186si1527206qkb.283.2018.05.08.05.54.17 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 08 May 2018 05:54:18 -0700 (PDT) Date: Tue, 8 May 2018 07:54:15 -0500 (CDT) From: Christopher Lameter Subject: Re: [PATCH] mm: expland documentation over __read_mostly In-Reply-To: <20180507231506.4891-1-mcgrof@kernel.org> Message-ID: References: <20180507231506.4891-1-mcgrof@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: "Luis R. Rodriguez" Cc: tglx@linutronix.de, arnd@arndb.de, keescook@chromium.org, luto@amacapital.net, longman@redhat.com, viro@zeniv.linux.org.uk, willy@infradead.org, ebiederm@xmission.com, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org On Mon, 7 May 2018, Luis R. Rodriguez wrote: > __read_mostly can easily be misused by folks, its not meant for > just read-only data. There are performance reasons for using it, but > we also don't provide any guidance about its use. Provide a bit more > guidance over it use. Acked-by: Christoph Lameter