From patchwork Mon Feb 17 18:45:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 11387257 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9512B109A for ; Mon, 17 Feb 2020 18:47:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 75B3122B48 for ; Mon, 17 Feb 2020 18:47:06 +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="kgYGh8XV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728142AbgBQSrB (ORCPT ); Mon, 17 Feb 2020 13:47:01 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:48382 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730017AbgBQSqb (ORCPT ); Mon, 17 Feb 2020 13:46:31 -0500 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=TtX4KO46nep3/dtMPTsaoMXZVI5q6MpM39G5vt8u6vs=; b=kgYGh8XV0tmtk1SvQtt5T9mE+L iEDIhgpY9fv8FYxnRE5lKUm/CKMw69PH0iRy/036y/O1hn9EM0Me79CFQVWsn1Hj9XLqb9TazLMoB Nx4Aulf/c8G9KxbxDO6v5QvW73Z1jLAyoUjAA/NlImrTHmswWtpboVcd0agWfeUUhOXgkKbn6FsH6 jReeG0AJ9aUz5vHXMeh2AUU0ZsZDpNgz+UNQEHcvRlCNnfbU+jzskRtuob1OCfFa71cbmy9I9hQs+ eWVqPk7XmQrKJePd3wPdtxGMhnvxR8J1X8LZq3P4nhxkzrZ5te8xo93dDRwREmzFFZBX/4PnkORvk AvwHIyWg==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1j3lPL-00059K-JQ; Mon, 17 Feb 2020 18:46:15 +0000 From: Matthew Wilcox To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, ocfs2-devel@oss.oracle.com, linux-xfs@vger.kernel.org, John Hubbard Subject: [PATCH v6 06/19] mm: rename readahead loop variable to 'i' Date: Mon, 17 Feb 2020 10:45:50 -0800 Message-Id: <20200217184613.19668-10-willy@infradead.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200217184613.19668-1-willy@infradead.org> References: <20200217184613.19668-1-willy@infradead.org> MIME-Version: 1.0 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org From: "Matthew Wilcox (Oracle)" Change the type of page_idx to unsigned long, and rename it -- it's just a loop counter, not a page index. Suggested-by: John Hubbard Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Dave Chinner --- mm/readahead.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 74791b96013f..bdc5759000d3 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -156,7 +156,7 @@ void __do_page_cache_readahead(struct address_space *mapping, struct inode *inode = mapping->host; unsigned long end_index; /* The last page we want to read */ LIST_HEAD(page_pool); - int page_idx; + unsigned long i; loff_t isize = i_size_read(inode); gfp_t gfp_mask = readahead_gfp_mask(mapping); struct readahead_control rac = { @@ -174,7 +174,7 @@ void __do_page_cache_readahead(struct address_space *mapping, /* * Preallocate as many pages as we will need. */ - for (page_idx = 0; page_idx < nr_to_read; page_idx++) { + for (i = 0; i < nr_to_read; i++) { struct page *page; if (offset > end_index) @@ -198,7 +198,7 @@ void __do_page_cache_readahead(struct address_space *mapping, break; page->index = offset; list_add(&page->lru, &page_pool); - if (page_idx == nr_to_read - lookahead_size) + if (i == nr_to_read - lookahead_size) SetPageReadahead(page); rac._nr_pages++; offset++;