From patchwork Fri Oct 13 16:04:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 13421481 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 A8B2ECDB47E for ; Fri, 13 Oct 2023 16:28:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232417AbjJMQ2c (ORCPT ); Fri, 13 Oct 2023 12:28:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46506 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232180AbjJMQ17 (ORCPT ); Fri, 13 Oct 2023 12:27:59 -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 E2C332D7F for ; Fri, 13 Oct 2023 09:07:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1697213215; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BY0IZ1puEbWlqmZjAm/oiBzHHsszrgyhlAY+cvlLt1A=; b=Xath/1NbMtz5xYPB2dVZcX0Mjbn+FNZ34nkmfPVSuuaszpOc7Aug6bmSdbTm8xugvULrtC zZlaUhecZ4XOTSVJ+PntpM32hR/EWCSx9UuOZWnX7CfwL/x8WExOGvzbtK38ST58qD65Z4 9h2VamXuQKsB1IecT2CtPKMTeL2iWBQ= Received: from mimecast-mx02.redhat.com (mx-ext.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-682-Ht3YwKPqOXqHHVTwg42j_A-1; Fri, 13 Oct 2023 12:06:52 -0400 X-MC-Unique: Ht3YwKPqOXqHHVTwg42j_A-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 11633380670B; Fri, 13 Oct 2023 16:06:51 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.226]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1556125C1; Fri, 13 Oct 2023 16:06:47 +0000 (UTC) From: David Howells To: Jeff Layton , Steve French Cc: David Howells , Matthew Wilcox , Marc Dionne , Paulo Alcantara , Shyam Prasad N , Tom Talpey , Dominique Martinet , Ilya Dryomov , Christian Brauner , linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Steve French , Shyam Prasad N , Rohith Surabattula , linux-cachefs@redhat.com Subject: [RFC PATCH 41/53] netfs: Rearrange netfs_io_subrequest to put request pointer first Date: Fri, 13 Oct 2023 17:04:10 +0100 Message-ID: <20231013160423.2218093-42-dhowells@redhat.com> In-Reply-To: <20231013160423.2218093-1-dhowells@redhat.com> References: <20231013160423.2218093-1-dhowells@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Rearrange the netfs_io_subrequest struct to put the netfs_io_request pointer (rreq) first. This then allows netfs_io_subrequest to be put in a union with a pointer to a wrapper around netfs_io_request for cifs. Signed-off-by: David Howells cc: Steve French cc: Shyam Prasad N cc: Rohith Surabattula cc: Jeff Layton cc: linux-cifs@vger.kernel.org cc: linux-cachefs@redhat.com cc: linux-fsdevel@vger.kernel.org cc: linux-mm@kvack.org --- include/linux/netfs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/netfs.h b/include/linux/netfs.h index c416645649e1..ff4f86ae64e4 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -209,8 +209,8 @@ struct netfs_cache_resources { * the pages it points to can be relied on to exist for the duration. */ struct netfs_io_subrequest { - struct work_struct work; struct netfs_io_request *rreq; /* Supervising I/O request */ + struct work_struct work; struct list_head rreq_link; /* Link in rreq->subrequests */ struct iov_iter io_iter; /* Iterator for this subrequest */ loff_t start; /* Where to start the I/O */