From patchwork Fri Oct 13 16:03:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 13421150 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 40E79CDB482 for ; Fri, 13 Oct 2023 16:05:06 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CB8926B00CB; Fri, 13 Oct 2023 12:05:05 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C18F46B00D1; Fri, 13 Oct 2023 12:05:05 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AE1066B00CC; Fri, 13 Oct 2023 12:05:05 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 9E6486B00C5 for ; Fri, 13 Oct 2023 12:05:05 -0400 (EDT) Received: from smtpin08.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id F2D5C1602E0 for ; Fri, 13 Oct 2023 16:05:04 +0000 (UTC) X-FDA: 81340912128.08.F6F9CD0 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf24.hostedemail.com (Postfix) with ESMTP id D17EC180032 for ; Fri, 13 Oct 2023 16:05:01 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=Vg9GqyvP; spf=pass (imf24.hostedemail.com: domain of dhowells@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=dhowells@redhat.com; dmarc=pass (policy=none) header.from=redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1697213101; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=od1nOg0d5KcBROFP/nmLvEU1/p7aWHgHI8UqWVAfctw=; b=gTmfWiNruPYAVM9ujhug5FloOgyZI/YAUsL/S2e+YTs4E1wI6CAGChyuXeTmjZ1hA0XH17 LSEIyAeXSqzNvrVZeiKdWUoJQPevlCaQlEMvB+sNWzErGH9v+3KcwjrpaudzqfgF9HtvkF U5pYOqj+ECpXhY4HXVL1jehR+cSlSRA= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1697213101; a=rsa-sha256; cv=none; b=4K7+gILytZM3FPjRDgaYuejODMTl6NdwbsnQtjsSokLwC7D/UvhMk6VLO5d9E9h2nGFT4o Hcmwu8x7MVt1huk1zoGzKx4q/yB5AIGJ5Sqrg1I0zKaFHu9CAnfM43YApi0KWFyA2ZV3zJ zTi96E9Ft6/0kiwWgoLkQYQLMn9wig8= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=Vg9GqyvP; spf=pass (imf24.hostedemail.com: domain of dhowells@redhat.com designates 170.10.133.124 as permitted sender) smtp.mailfrom=dhowells@redhat.com; dmarc=pass (policy=none) header.from=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1697213101; 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=od1nOg0d5KcBROFP/nmLvEU1/p7aWHgHI8UqWVAfctw=; b=Vg9GqyvPo5fMLPWkRhDN0dpYvFzFdLDBnZBgmKcuHiDJeZ3q8AvZzI+1Efhihm5ndjWJhU N9vYOB7hFkkZtGMfa73/BfVVxcF7p1yJIsOV9ZQ4od+8CA4g65SIHOcEfPntuwlyr6zsCX I1cNB3/i4Q5HKNLABuV12W18ejvcwVU= 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-378--MYQi_f-M-Sjm_LBP-JE9A-1; Fri, 13 Oct 2023 12:04:55 -0400 X-MC-Unique: -MYQi_f-M-Sjm_LBP-JE9A-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (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 BB9F53C40C2F; Fri, 13 Oct 2023 16:04:54 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.42.28.226]) by smtp.corp.redhat.com (Postfix) with ESMTP id 253CB1C06535; Fri, 13 Oct 2023 16:04:52 +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, linux-cachefs@redhat.com Subject: [RFC PATCH 08/53] netfs: Add rsize to netfs_io_request Date: Fri, 13 Oct 2023 17:03:37 +0100 Message-ID: <20231013160423.2218093-9-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 10.11.54.7 X-Rspamd-Queue-Id: D17EC180032 X-Rspam-User: X-Stat-Signature: kucoa4pgkcxab6nkwz7e8cfutzqtrpck X-Rspamd-Server: rspam03 X-HE-Tag: 1697213101-598032 X-HE-Meta: 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 RoVFeuPh Eshoxm//4/lenns//ZroX4YSs6QOIbMRTV9gEzm+rryuxpYKc4bfoq8Wp7sYjm2klfatltwxq5YFiOZnkR/wwv1QcedHErPrkvyCrYW0QKxvIittrymxCQBCoiT4x3YZFHy123/IE33jceGSQaobC7Kl9GAH71RtuF6lf/4/WIpmgkUVKaCQZNZsIg0m++vDBILLpMUpp3+xvba+3SN5NZKpNC+sIZAHMqAGi5vYOrbhXlmfLRg17Umyu1lVdaxsoOk/oF76Jn3OSXO7nubkLUkSwFrN46ezpylZDak2+AhjIWI9qBH2YUSfc4dJ9ojzzu29jS16gqQ6OgtB0QIfRqXM0tw== 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: Add an rsize parameter to netfs_io_request to be filled in by the network filesystem when the request is initialised. This indicates the maximum size of a read request that the netfs will honour in that region. Signed-off-by: David Howells cc: Jeff Layton cc: linux-cachefs@redhat.com cc: linux-fsdevel@vger.kernel.org cc: linux-mm@kvack.org --- fs/afs/file.c | 1 + fs/ceph/addr.c | 2 ++ include/linux/netfs.h | 1 + 3 files changed, 4 insertions(+) diff --git a/fs/afs/file.c b/fs/afs/file.c index 3fea5cd8ef13..3d2e1913ea27 100644 --- a/fs/afs/file.c +++ b/fs/afs/file.c @@ -360,6 +360,7 @@ static int afs_symlink_read_folio(struct file *file, struct folio *folio) static int afs_init_request(struct netfs_io_request *rreq, struct file *file) { rreq->netfs_priv = key_get(afs_file_key(file)); + rreq->rsize = 4 * 1024 * 1024; return 0; } diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index ced19ff08988..92a5ddcd9a76 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -419,6 +419,8 @@ static int ceph_init_request(struct netfs_io_request *rreq, struct file *file) struct ceph_netfs_request_data *priv; int ret = 0; + rreq->rsize = 1024 * 1024; + if (rreq->origin != NETFS_READAHEAD) return 0; diff --git a/include/linux/netfs.h b/include/linux/netfs.h index daa431c4148d..02e888c170da 100644 --- a/include/linux/netfs.h +++ b/include/linux/netfs.h @@ -188,6 +188,7 @@ struct netfs_io_request { struct list_head subrequests; /* Contributory I/O operations */ void *netfs_priv; /* Private data for the netfs */ unsigned int debug_id; + unsigned int rsize; /* Maximum read size (0 for none) */ atomic_t nr_outstanding; /* Number of ops in progress */ atomic_t nr_copy_ops; /* Number of copy-to-cache ops in progress */ size_t submitted; /* Amount submitted for I/O so far */