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=-12.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 EBCC0C432BE for ; Wed, 11 Aug 2021 14:17:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CC8626101D for ; Wed, 11 Aug 2021 14:17:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232279AbhHKORm (ORCPT ); Wed, 11 Aug 2021 10:17:42 -0400 Received: from smtp-out1.suse.de ([195.135.220.28]:55470 "EHLO smtp-out1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231991AbhHKORi (ORCPT ); Wed, 11 Aug 2021 10:17:38 -0400 Received: from imap1.suse-dmz.suse.de (imap1.suse-dmz.suse.de [192.168.254.73]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id C638C220E8; Wed, 11 Aug 2021 14:17:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1628691433; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Xl723j198up04BkKn425KjWjCe12u51etMnxGBEI4+g=; b=K1FsBpOGGjzV02EWDXDQ4+ryuc6DeHzX59qTWNF0h5JJ7ciFeGp8Kbtru/9Vn3ZppmzUrR +eLR5Yj19geEiVVTdUUqSUgkxnrPx/0tIow64qoY6vj2NiIRhAflzEjUaznBB3tNVAhefb hYpgEs7lTFP1A3xIdPlf+V5l4bP92tk= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1628691433; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Xl723j198up04BkKn425KjWjCe12u51etMnxGBEI4+g=; b=+aNHMwa4n6002kVNEZAsrd203luLPCVWa1J/3Vgzu63aINrCe683sE2lmhWi6UuwVAGkgU HDIwAXTLoioKWtBQ== Received: from imap1.suse-dmz.suse.de (imap1.suse-dmz.suse.de [192.168.254.73]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap1.suse-dmz.suse.de (Postfix) with ESMTPS id B0C9513969; Wed, 11 Aug 2021 14:17:13 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap1.suse-dmz.suse.de with ESMTPSA id kdCWKunbE2FDSQAAGKfGzw (envelope-from ); Wed, 11 Aug 2021 14:17:13 +0000 Subject: Re: [PATCH v14 054/138] mm: Add kmap_local_folio() To: "Matthew Wilcox (Oracle)" , linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig References: <20210715033704.692967-1-willy@infradead.org> <20210715033704.692967-55-willy@infradead.org> From: Vlastimil Babka Message-ID: <7644cca0-3858-5238-3566-46a7328ae611@suse.cz> Date: Wed, 11 Aug 2021 16:17:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210715033704.692967-55-willy@infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/15/21 5:35 AM, Matthew Wilcox (Oracle) wrote: > This allows us to map a portion of a folio. Callers can only expect > to access up to the next page boundary. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Christoph Hellwig Acked-by: Vlastimil Babka