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Fri, 20 Mar 2020 14:22:43 GMT Received: from userp2030.oracle.com (userp2030.oracle.com [156.151.31.89]) by aserp3020.oracle.com with ESMTP id 2ys92qmtmt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 20 Mar 2020 14:22:43 +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 02KED9BQ023633 for ; Fri, 20 Mar 2020 14:22:42 GMT Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by userp2030.oracle.com with ESMTP id 2yv7jmws7n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Fri, 20 Mar 2020 14:22:42 +0000 Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jFIXh-0000hn-CY; Fri, 20 Mar 2020 14:22:33 +0000 From: Matthew Wilcox To: Andrew Morton Date: Fri, 20 Mar 2020 07:22:14 -0700 Message-Id: <20200320142231.2402-9-willy@infradead.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200320142231.2402-1-willy@infradead.org> References: <20200320142231.2402-1-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=9565 signatures=668685 X-Proofpoint-Spam-Details: rule=tap_spam_policies_notspam policy=tap_spam_policies score=0 bulkscore=0 lowpriorityscore=0 spamscore=0 mlxlogscore=863 suspectscore=0 phishscore=0 malwarescore=0 adultscore=0 impostorscore=0 clxscore=218 mlxscore=0 priorityscore=30 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003200059 X-Spam: Clean X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 mlxlogscore=998 mlxscore=0 spamscore=0 bulkscore=0 adultscore=0 suspectscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003200059 Cc: linux-xfs@vger.kernel.org, William Kucharski , 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, Dave Chinner , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-btrfs@vger.kernel.org Subject: [Ocfs2-devel] [PATCH v9 08/25] 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=9565 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 mlxlogscore=999 mlxscore=0 adultscore=0 bulkscore=0 malwarescore=0 spamscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003200059 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9565 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 phishscore=0 adultscore=0 clxscore=1034 impostorscore=0 priorityscore=1501 spamscore=0 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003200059 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 Reviewed-by: William Kucharski --- mm/readahead.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 8a65d6bd97e0..7ce320854bad 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -163,13 +163,13 @@ void __do_page_cache_readahead(struct address_space *mapping, struct page *page; unsigned long end_index; /* The last page we want to read */ LIST_HEAD(page_pool); - int page_idx; loff_t isize = i_size_read(inode); gfp_t gfp_mask = readahead_gfp_mask(mapping); struct readahead_control rac = { .mapping = mapping, .file = filp, }; + unsigned long i; if (isize == 0) return; @@ -179,8 +179,8 @@ 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++) { - pgoff_t page_offset = index + page_idx; + for (i = 0; i < nr_to_read; i++) { + pgoff_t page_offset = index + i; if (page_offset > end_index) break; @@ -201,7 +201,7 @@ void __do_page_cache_readahead(struct address_space *mapping, break; page->index = page_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++; }