From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 14D81C2D0CE for ; Sat, 25 Jan 2020 01:36:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DC9C32071E for ; Sat, 25 Jan 2020 01:36:39 +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="pMkH+xX7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387405AbgAYBf4 (ORCPT ); Fri, 24 Jan 2020 20:35:56 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:36702 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729195AbgAYBfz (ORCPT ); Fri, 24 Jan 2020 20:35:55 -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:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=LKEoyUCzBuRkKfb9R2uO7LHx4Md5GqeUkIse+rddq2w=; b=pMkH+xX7Mh/vUpdwz79LTeziBB 3XC3tlxILQETgjOioy3xvNGrkOukMURtUFt1NoWkvIC92bZYlpLVClbHUGN1Y3bqZJJ6cYtHKYcLY OeLSkurSnm6BizUAhjsDEO/UXyxI4CJj/WIqJwXDxQKJNuYRE0k2TJyDX/2mYouDTaK27C3JSt5xS rHooHWymtZLR3/WK3JZwFwDl6a/Sb8Zw8Scqb9jiV9muNkea9UQMvL+x9dSi77OU9DNLJbMH7tHDi Od5KLLqPPcdzhoysQxx/QJmzD7oeIJaEwuEf2aqZLqEDz5AvtO+0swYWAwp+CmVgbyd6nIZ0hulRy mszhOpkQ==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1ivAMd-0006VH-84; Sat, 25 Jan 2020 01:35:55 +0000 From: Matthew Wilcox To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/12] readahead: Ignore return value of ->readpages Date: Fri, 24 Jan 2020 17:35:43 -0800 Message-Id: <20200125013553.24899-3-willy@infradead.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200125013553.24899-1-willy@infradead.org> References: <20200125013553.24899-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org From: "Matthew Wilcox (Oracle)" We used to assign the return value to a variable, which we then ignored. Remove the pretence of caring. Signed-off-by: Matthew Wilcox (Oracle) --- mm/readahead.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 6bf73ef33b7e..fc77d13af556 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -113,17 +113,16 @@ int read_cache_pages(struct address_space *mapping, struct list_head *pages, EXPORT_SYMBOL(read_cache_pages); -static int read_pages(struct address_space *mapping, struct file *filp, +static void read_pages(struct address_space *mapping, struct file *filp, struct list_head *pages, unsigned int nr_pages, gfp_t gfp) { struct blk_plug plug; unsigned page_idx; - int ret; blk_start_plug(&plug); if (mapping->a_ops->readpages) { - ret = mapping->a_ops->readpages(filp, mapping, pages, nr_pages); + mapping->a_ops->readpages(filp, mapping, pages, nr_pages); /* Clean up the remaining pages */ put_pages_list(pages); goto out; @@ -136,12 +135,9 @@ static int read_pages(struct address_space *mapping, struct file *filp, mapping->a_ops->readpage(filp, page); put_page(page); } - ret = 0; out: blk_finish_plug(&plug); - - return ret; } /* -- 2.24.1