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=-9.5 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=ham 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 A7159C433E1 for ; Fri, 29 May 2020 02:58:50 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6BC2D2075F for ; Fri, 29 May 2020 02:58:50 +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="G6/o1Skz" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6BC2D2075F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id BFA49800BC; Thu, 28 May 2020 22:58:30 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EC127800C7; Thu, 28 May 2020 22:58:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9194C800B7; Thu, 28 May 2020 22:58:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0061.hostedemail.com [216.40.44.61]) by kanga.kvack.org (Postfix) with ESMTP id 172CF800C0 for ; Thu, 28 May 2020 22:58:29 -0400 (EDT) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id C03F2181AEF1E for ; Fri, 29 May 2020 02:58:28 +0000 (UTC) X-FDA: 76868248296.12.noise68_fcadc7020440 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin12.hostedemail.com (Postfix) with ESMTP id A5AEF1801124C for ; Fri, 29 May 2020 02:58:28 +0000 (UTC) X-HE-Tag: noise68_fcadc7020440 X-Filterd-Recvd-Size: 2323 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Fri, 29 May 2020 02:58:28 +0000 (UTC) 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=ZvCAGtrDAcAsja+QmzFW6sNRVbIwR7f84uLooOJs50k=; b=G6/o1SkzUI+vKbdXJspiSmkq4i 0qxhVfZeZ5jLXewappHyXeyvTFFJFmvXH6PZJG9D62B6XPJo1HV4pDCbFrIz7FQNrtxxFm7hcv9Bh WZ7TXliWfnjKo+RYXuvGslzANGWAjhyvNgpEwIQ9JxfDdllFyeEpz0Z7zRSyzHOg1FCuGIrxMEsT1 fjPpbcMzIGUW6igMRqSEfs6LPepYHTM9zLHBkzS7pFw6g3yHB5qNu/QSuCNwAsPkCAzdEpcfiYAX6 O4i8gsB1pme/Kl7o5WzwD8PNWimcRlEwwfZ7J/PICohml87RYQ+MsK1hBqeu733e++rq8Q2hjTS2I cfamU/DQ==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jeVE3-0008TI-QK; Fri, 29 May 2020 02:58:27 +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 v5 32/39] mm: Support retrieving tail pages from the page cache Date: Thu, 28 May 2020 19:58:17 -0700 Message-Id: <20200529025824.32296-33-willy@infradead.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200529025824.32296-1-willy@infradead.org> References: <20200529025824.32296-1-willy@infradead.org> MIME-Version: 1.0 X-Rspamd-Queue-Id: A5AEF1801124C X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam02 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: "Matthew Wilcox (Oracle)" page->index is not meaningful for tail pages; we have to use page_to_index() in this assertion. Signed-off-by: Matthew Wilcox (Oracle) --- mm/filemap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/filemap.c b/mm/filemap.c index 0ec7f25a07b2..56eb086acef8 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1655,7 +1655,7 @@ struct page *pagecache_get_page(struct address_spac= e *mapping, pgoff_t index, put_page(page); goto repeat; } - VM_BUG_ON_PAGE(page->index !=3D index, page); + VM_BUG_ON_PAGE(page_to_index(page) !=3D index, page); } =20 if (fgp_flags & FGP_ACCESSED) --=20 2.26.2