Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13BA7C7618B for ; Thu, 16 Mar 2023 18:01:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230306AbjCPSBl (ORCPT ); Thu, 16 Mar 2023 14:01:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230218AbjCPSBf (ORCPT ); Thu, 16 Mar 2023 14:01:35 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D974D591EF for ; Thu, 16 Mar 2023 11:00:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678989651; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=qbEsnALNOSBxPiXGIwmunczWgV/dhcVYCQ7WT9nvyUY=; b=VthEZebC5xYPmPVFnK9fTCy4unxr4MM5oxvMJTblca/UOwThUEsUx73qRX60NZKQQXFIZQ slRxvHLoOa3F8bh4VJagkdz7W48hxto7LZtO47L82KdjdCQd4XzBgbeuqKL9gg6jIVUA0/ otVKSPNQXj8M4acSW6jx42XdjWcGY+U= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-450-kNgie8orP4CyP7VIozu2TQ-1; Thu, 16 Mar 2023 14:00:40 -0400 X-MC-Unique: kNgie8orP4CyP7VIozu2TQ-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 405F01C075B5; Thu, 16 Mar 2023 18:00:39 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.33.36.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1AE75492B00; Thu, 16 Mar 2023 18:00:37 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: References: <20230316152618.711970-1-dhowells@redhat.com> <20230316152618.711970-3-dhowells@redhat.com> To: Matthew Wilcox Cc: dhowells@redhat.com, "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Al Viro , Christoph Hellwig , Jens Axboe , Jeff Layton , Christian Brauner , Linus Torvalds , netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Bernard Metzler , Tom Talpey , linux-rdma@vger.kernel.org Subject: Re: [RFC PATCH 02/28] Add a special allocator for staging netfs protocol to MSG_SPLICE_PAGES MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <809771.1678989636.1@warthog.procyon.org.uk> Date: Thu, 16 Mar 2023 18:00:36 +0000 Message-ID: <809772.1678989636@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Matthew Wilcox wrote: > This feels a _lot_ like the page_frag allocator. Can the two be > unified? Looks kind of similar. I might well be able to use that instead. David