From patchwork Mon Jul 19 10:34:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12385279 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 5D903C636CE for ; Mon, 19 Jul 2021 10:41:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 485EB60200 for ; Mon, 19 Jul 2021 10:41:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236374AbhGSKAa (ORCPT ); Mon, 19 Jul 2021 06:00:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236358AbhGSKA2 (ORCPT ); Mon, 19 Jul 2021 06:00:28 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B05EFC061574; Mon, 19 Jul 2021 02:48:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.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=qd+WEYiXZlJ37IUM1ZUcVt/jgs3r9kPizrSaj4rOc20=; b=rh0FL7pHt+khRQekVmfuV96L0a roitaa+2qpf6YsfhUp5+A3BWMKxmtpIUkifODyLKpjrcRCwww1lipEZ4aKh4NJ0NSoeH/b+jI5nQg sBIQdlGsl6lsPfVWulnYMJU1Sjz0jBJtI08FQczHbm89nYgHX529+aH5rE3FDFpVKud0M3efsVAHR vCbzZWbx4BiDs7YP5oPzAAeoyHJAOF/ZEWahGobDNHEKSldsi68K00stzKrB4J6AO2SndjW/DF1Wh Url/xmGIQ7A5jzBwL42cdD2Sb6hIgA839WI7qn84rSK586zb+fwmsRsu3Bg2kbULKkmQqg8/uRhP7 yR/M0uZA==; Received: from [2001:4bb8:193:7660:d2a4:8d57:2e55:21d0] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1m5QfL-006kdL-56; Mon, 19 Jul 2021 10:38:42 +0000 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Dan Williams , Matthew Wilcox , Andreas Gruenbacher , Shiyang Ruan , linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-btrfs@vger.kernel.org, nvdimm@lists.linux.dev, cluster-devel@redhat.com Subject: [PATCH 04/27] fs: mark the iomap argument to __block_write_begin_int const Date: Mon, 19 Jul 2021 12:34:57 +0200 Message-Id: <20210719103520.495450-5-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210719103520.495450-1-hch@lst.de> References: <20210719103520.495450-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org __block_write_begin_int never modifies the passed in iomap, so mark it const. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong --- fs/buffer.c | 4 ++-- fs/internal.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 6290c3afdba488..bd6a9e9fbd64c9 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1912,7 +1912,7 @@ EXPORT_SYMBOL(page_zero_new_buffers); static void iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh, - struct iomap *iomap) + const struct iomap *iomap) { loff_t offset = block << inode->i_blkbits; @@ -1966,7 +1966,7 @@ iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh, } int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, - get_block_t *get_block, struct iomap *iomap) + get_block_t *get_block, const struct iomap *iomap) { unsigned from = pos & (PAGE_SIZE - 1); unsigned to = from + len; diff --git a/fs/internal.h b/fs/internal.h index 3ce8edbaa3ca2f..9ad6b5157584b8 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -48,8 +48,8 @@ static inline int emergency_thaw_bdev(struct super_block *sb) /* * buffer.c */ -extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, - get_block_t *get_block, struct iomap *iomap); +int __block_write_begin_int(struct page *page, loff_t pos, unsigned len, + get_block_t *get_block, const struct iomap *iomap); /* * char_dev.c