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=-6.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham 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 697A6C2D0EA for ; Wed, 8 Apr 2020 15:01:58 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 29C2F206C0 for ; Wed, 8 Apr 2020 15:01:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ja0GX5Xk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 29C2F206C0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id DA4D98E0016; Wed, 8 Apr 2020 11:01:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C20978E000D; Wed, 8 Apr 2020 11:01:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9D12A8E0016; Wed, 8 Apr 2020 11:01:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0149.hostedemail.com [216.40.44.149]) by kanga.kvack.org (Postfix) with ESMTP id 7B7098E000D for ; Wed, 8 Apr 2020 11:01:52 -0400 (EDT) Received: from smtpin21.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 24E7FA8E5 for ; Wed, 8 Apr 2020 15:01:52 +0000 (UTC) X-FDA: 76685002464.21.foot27_1045bece96a04 X-HE-Tag: foot27_1045bece96a04 X-Filterd-Recvd-Size: 2329 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf34.hostedemail.com (Postfix) with ESMTP for ; Wed, 8 Apr 2020 15:01:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=zzVFBtDmUhkfOeTRAYLgyVd2MT4j5JpTQDiGhm5MySo=; b=ja0GX5XkdIq9Jshzty3G+gzhfc EuzydHa/NC9KYudAlaaFz/Z3Q3lSmGAKNojMUWVsylfZ9YGoLWtZFoi0DFB4zf8Ak0imZPU4eqeIU IxniAoBEo4b9sSDGv3XehkqqF0aCaKr4O7DIIg0orcnv6l7XCF91nmer88pFwRMIVlW34TeR5JvI/ q6mk+XZk9aPnOKPwyYdJZpcq8UqW3LVSgZ8/7qD/3R+x/U7eyU3tOn/WuBACG+tomCJM0UjpBcn1k wwxotJz+GcD6YO+PbbvD2409DPshB6YBG46WZLBgCsrIPySH1lyLshv6mXQXNFWzF+m6KU2+LvkzB hU7e6svQ==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jMCD8-0006bE-6h; Wed, 08 Apr 2020 15:01:50 +0000 From: Matthew Wilcox To: linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" , kirill.shutemov@linux.intel.com, pasha.tatashin@soleen.com Subject: [PATCH 3/5] mm: Remove casting away of constness Date: Wed, 8 Apr 2020 08:01:46 -0700 Message-Id: <20200408150148.25290-4-willy@infradead.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200408150148.25290-1-willy@infradead.org> References: <20200408150148.25290-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: "Matthew Wilcox (Oracle)" Now that dump_page can take a const struct page pointer, we can get rid of the cast in page_to_nid(). --- include/linux/mm.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 933450bdcfd4..047144b894bd 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1246,9 +1246,7 @@ extern int page_to_nid(const struct page *page); #else static inline int page_to_nid(const struct page *page) { - struct page *p =3D (struct page *)page; - - return (page_poison_check(p)->flags >> NODES_PGSHIFT) & NODES_MASK; + return (page_poison_check(page)->flags >> NODES_PGSHIFT) & NODES_MASK; } #endif =20 --=20 2.25.1