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=-17.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 1D936C07E95 for ; Tue, 20 Jul 2021 10:42:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 04FFF61221 for ; Tue, 20 Jul 2021 10:42:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235683AbhGTKCF (ORCPT ); Tue, 20 Jul 2021 06:02:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:34100 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237417AbhGTKBl (ORCPT ); Tue, 20 Jul 2021 06:01:41 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3542D61165; Tue, 20 Jul 2021 10:42:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1626777739; bh=xY34TkkfEyN2xJ5ULrS19fyp7oVXqEVk/9Z+3+xxUy4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=FM/j2mW74IqGOOGh9MIUoDUhoLC5N1x85PdGTnmFpja9hFAH6P8ns1KvdSh+je1bb P9KPia8HXe4vNuN60JRZrlILhA9Kx1VFdXIfRxvt8nx0j1KLg2aTqn3D8HbbvM7BlM jDPEwo8xAxmwhjrZxY/q7F86nwvdJp8JHcj6nYbjL+32B6MaBKQdzxhPgfQyoQjuL/ NeNkMG//29cro9Cv1AqLVNDrcoF7sBNZowcs+6BpzG6BadYzbexza/jxcOIh9MXJRL JwwZL7D6olSb3oy30nQ/FRVs1Unl9pJZ+Z9xgELMatViPq8PI07CDg67J56xST1yng MBTAvtrkPTRvQ== Date: Tue, 20 Jul 2021 13:42:11 +0300 From: Mike Rapoport To: "Matthew Wilcox (Oracle)" Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig , Jeff Layton , "Kirill A . Shutemov" , Vlastimil Babka , William Kucharski , David Howells Subject: Re: [PATCH v14 014/138] mm/filemap: Add folio_next_index() Message-ID: References: <20210715033704.692967-1-willy@infradead.org> <20210715033704.692967-15-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210715033704.692967-15-willy@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Thu, Jul 15, 2021 at 04:35:00AM +0100, Matthew Wilcox (Oracle) wrote: > This helper returns the page index of the next folio in the file (ie > the end of this folio, plus one). > > No changes to generated code. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Christoph Hellwig > Acked-by: Jeff Layton > Acked-by: Kirill A. Shutemov > Acked-by: Vlastimil Babka > Reviewed-by: William Kucharski > Reviewed-by: David Howells > --- > include/linux/pagemap.h | 11 +++++++++++ > 1 file changed, 11 insertions(+) Acked-by: Mike Rapoport > diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h > index f7c165b5991f..bd0e7e91bfd4 100644 > --- a/include/linux/pagemap.h > +++ b/include/linux/pagemap.h > @@ -406,6 +406,17 @@ static inline pgoff_t folio_index(struct folio *folio) > return folio->index; > } > > +/** > + * folio_next_index - Get the index of the next folio. > + * @folio: The current folio. > + * > + * Return: The index of the folio which follows this folio in the file. > + */ Maybe note that index is in units of pages? > +static inline pgoff_t folio_next_index(struct folio *folio) > +{ > + return folio->index + folio_nr_pages(folio); > +} > + > /** > * folio_file_page - The page for a particular index. > * @folio: The folio which contains this index. > -- > 2.30.2 > > -- Sincerely yours, Mike.