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 (Oracle)" X-Patchwork-Id: 11387327 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 947C517F0 for ; Mon, 17 Feb 2020 18:47:39 +0000 (UTC) Received: from userp2120.oracle.com (userp2120.oracle.com [156.151.31.85]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 732ED208C4 for ; Mon, 17 Feb 2020 18:47:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 732ED208C4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=ocfs2-devel-bounces@oss.oracle.com Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01HIjUhS162949; Mon, 17 Feb 2020 18:47:27 GMT Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2120.oracle.com with ESMTP id 2y699rhjvw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 17 Feb 2020 18:47:26 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01HIfkGM098815; Mon, 17 Feb 2020 18:47:26 GMT Received: from oss.oracle.com (oss-old-reserved.oracle.com [137.254.22.2]) by userp3030.oracle.com with ESMTP id 2y6t4gjwem-1 (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO); Mon, 17 Feb 2020 18:47:25 +0000 Received: from localhost ([127.0.0.1] helo=lb-oss.oracle.com) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1j3lQT-0000pI-4k; Mon, 17 Feb 2020 10:47:25 -0800 Received: from aserp3020.oracle.com ([141.146.126.70]) by oss.oracle.com with esmtp (Exim 4.63) (envelope-from ) id 1j3lPi-0000Wf-Bh for ocfs2-devel@oss.oracle.com; Mon, 17 Feb 2020 10:46:38 -0800 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01HIg7gu162985 for ; Mon, 17 Feb 2020 18:46:38 GMT Received: from userp2030.oracle.com (userp2030.oracle.com [156.151.31.89]) by aserp3020.oracle.com with ESMTP id 2y6tekbdfb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Mon, 17 Feb 2020 18:46:38 +0000 Received: from pps.filterd (userp2030.oracle.com [127.0.0.1]) by userp2030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01HIhFRm047792 for ; Mon, 17 Feb 2020 18:46:37 GMT Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by userp2030.oracle.com with ESMTP id 2y77nma6am-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 17 Feb 2020 18:46:37 +0000 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 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 X-PDR: PASS X-Source-IP: 198.137.202.133 X-ServerName: bombadil.infradead.org X-Proofpoint-SPF-Result: None X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9534 signatures=668685 X-Proofpoint-Spam-Details: rule=tap_spam_policies_notspam policy=tap_spam_policies score=0 impostorscore=0 bulkscore=0 malwarescore=0 clxscore=242 suspectscore=1 adultscore=0 spamscore=0 mlxlogscore=655 phishscore=0 priorityscore=0 mlxscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002170152 X-Spam: Clean X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 phishscore=0 bulkscore=0 suspectscore=1 mlxscore=0 mlxlogscore=842 adultscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002170152 Cc: linux-xfs@vger.kernel.org, John Hubbard , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-mm@kvack.org, ocfs2-devel@oss.oracle.com, linux-ext4@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org Subject: [Ocfs2-devel] [PATCH v6 06/19] mm: rename readahead loop variable to 'i' X-BeenThere: ocfs2-devel@oss.oracle.com X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: ocfs2-devel-bounces@oss.oracle.com Errors-To: ocfs2-devel-bounces@oss.oracle.com X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9534 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 bulkscore=0 mlxlogscore=999 phishscore=0 mlxscore=0 malwarescore=0 suspectscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002170152 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9534 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 suspectscore=0 malwarescore=0 priorityscore=1501 adultscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 lowpriorityscore=0 spamscore=0 clxscore=1034 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002170152 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++;