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=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 2A539C07E9B for ; Tue, 20 Jul 2021 10:41:55 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D13826120A for ; Tue, 20 Jul 2021 10:41:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D13826120A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 854576B00A9; Tue, 20 Jul 2021 06:41:55 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 829EF6B00CC; Tue, 20 Jul 2021 06:41:55 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6CBB46B00CD; Tue, 20 Jul 2021 06:41:55 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0190.hostedemail.com [216.40.44.190]) by kanga.kvack.org (Postfix) with ESMTP id 499146B00A9 for ; Tue, 20 Jul 2021 06:41:55 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id D496126814 for ; Tue, 20 Jul 2021 10:41:53 +0000 (UTC) X-FDA: 78382625706.27.6110DF4 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf08.hostedemail.com (Postfix) with ESMTP id 91C8C30000B1 for ; Tue, 20 Jul 2021 10:41:53 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 82F0B61209; Tue, 20 Jul 2021 10:41:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1626777712; bh=ACwdOqNdcSDdPdwZhzCQApak7JmD7gYgFfks/TLhApY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IWL3FNMkM9GiZqbX9zrwE4G/1zDoTqP+xPOohrXEvn/1h2/ZOY5vtwLIxJxdYYtbM cMoqTB/ra7OrmN2m1Mm6DXZgbU5hQ/avOJxKGkjDnUxWoC0bFdcZkFg6AEmcwInZyU 4zC0ZIXo+G+GUaR0ANI8RE7n7LfmIm6IzUqpHnI3nAIhiCHzEPVMakOwUIafKYs/58 56PJM9VkECjz8il5rcYoEC8ZrM/ZGN1AFfRjOPo+wXSZWaCW4qK5RPpwGgIouvjTur 9mnoJImmuT6UC8nXt5UHHK2hkxJmSHE+05Wpayh06QlfGCRRN21aDSN+0HI88s/FC7 U1qivMsAGFgaQ== Date: Tue, 20 Jul 2021 13:41:45 +0300 From: Mike Rapoport To: "Matthew Wilcox (Oracle)" Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Zi Yan , Christoph Hellwig , Jeff Layton , "Kirill A . Shutemov" , Vlastimil Babka , William Kucharski , David Howells Subject: Re: [PATCH v14 008/138] mm: Add folio_get() Message-ID: References: <20210715033704.692967-1-willy@infradead.org> <20210715033704.692967-9-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210715033704.692967-9-willy@infradead.org> Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=IWL3FNMk; spf=pass (imf08.hostedemail.com: domain of rppt@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-Stat-Signature: 8gzao5tkqurdack4qp1mks8f47edjbmj X-Rspamd-Queue-Id: 91C8C30000B1 X-Rspamd-Server: rspam01 X-HE-Tag: 1626777713-95790 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: On Thu, Jul 15, 2021 at 04:34:54AM +0100, Matthew Wilcox (Oracle) wrote: > If we know we have a folio, we can call folio_get() instead > of get_page() and save the overhead of calling compound_head(). > No change to generated code. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Zi Yan > 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/mm.h | 26 +++++++++++++++++--------- > 1 file changed, 17 insertions(+), 9 deletions(-) Acked-by: Mike Rapoport