From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: [patch 022/128] mm: remove 'page_offset' from readahead loop Date: Tue, 02 Jun 2020 13:11:12 -0700 Message-ID: <20200602201112.SAni_loCI%akpm@linux-foundation.org> References: <20200602130930.8e8f10fa6f19e3766e70921f@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.99]:54310 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726130AbgFBULP (ORCPT ); Tue, 2 Jun 2020 16:11:15 -0400 In-Reply-To: <20200602130930.8e8f10fa6f19e3766e70921f@linux-foundation.org> Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: akpm@linux-foundation.org, darrick.wong@oracle.com, dchinner@redhat.com, ebiggers@google.com, gaoxiang25@huawei.com, hch@lst.de, jaegeuk@kernel.org, jhubbard@nvidia.com, johannes.thumshirn@wdc.com, joseph.qi@linux.alibaba.com, junxiao.bi@oracle.com, linux-mm@kvack.org, mhocko@suse.com, mm-commits@vger.kernel.org, mszeredi@redhat.com, torvalds@linux-foundation.org, william.kucharski@oracle.com, willy@infradead.org, xiyou.wangcong@gmail.com, yuchao0@huawei.com, ziy@nvidia.com From: "Matthew Wilcox (Oracle)" Subject: mm: remove 'page_offset' from readahead loop Replace the page_offset variable with 'index + i'. Link: http://lkml.kernel.org/r/20200414150233.24495-10-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: John Hubbard Reviewed-by: Christoph Hellwig Reviewed-by: William Kucharski Cc: Chao Yu Cc: Cong Wang Cc: Darrick J. Wong Cc: Dave Chinner Cc: Eric Biggers Cc: Gao Xiang Cc: Jaegeuk Kim Cc: Joseph Qi Cc: Junxiao Bi Cc: Michal Hocko Cc: Zi Yan Cc: Johannes Thumshirn Cc: Miklos Szeredi Signed-off-by: Andrew Morton --- mm/readahead.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) --- a/mm/readahead.c~mm-remove-page_offset-from-readahead-loop +++ a/mm/readahead.c @@ -180,12 +180,10 @@ void __do_page_cache_readahead(struct ad * Preallocate as many pages as we will need. */ for (i = 0; i < nr_to_read; i++) { - pgoff_t page_offset = index + i;