From patchwork Mon May 4 17:15:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 11527197 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 56CEA81 for ; Mon, 4 May 2020 17:15:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E82F2495B for ; Mon, 4 May 2020 17:15:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="h2+sOKsW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730653AbgEDRPl (ORCPT ); Mon, 4 May 2020 13:15:41 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:23948 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730394AbgEDRPi (ORCPT ); Mon, 4 May 2020 13:15:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588612537; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CWQJK7zPeDPdYhDwPYU8xq1x4O/xcEWQo3ZiKiG6jyk=; b=h2+sOKsWQQoIKxQKiA9/kNcj1Yc9ebpGuuukYPmnHuyytYh25WBZDbcE+CSH5ENpzrFQ5Q 2HAoVunjeHOHYgR/nc2tiBr3VtmKS4468uuP3koZDFI41psmb7ToYPA9xwMg6lnRYdeQ4g 0OkZtZOC6lxfJEvIcpkN52E2HXJ0/Po= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-470-2suybqQwNsyAxzX2F4_yfw-1; Mon, 04 May 2020 13:15:36 -0400 X-MC-Unique: 2suybqQwNsyAxzX2F4_yfw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5647680BE32; Mon, 4 May 2020 17:15:34 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-118-225.rdu2.redhat.com [10.10.118.225]) by smtp.corp.redhat.com (Postfix) with ESMTP id F146D5C1BD; Mon, 4 May 2020 17:15:31 +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 Subject: [RFC PATCH 53/61] afs: Note the amount transferred in fetch-data delivery From: David Howells To: Trond Myklebust , Anna Schumaker , Steve French , Jeff Layton Cc: dhowells@redhat.com, Matthew Wilcox , Alexander Viro , linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Date: Mon, 04 May 2020 18:15:31 +0100 Message-ID: <158861253114.340223.7031203580922376614.stgit@warthog.procyon.org.uk> In-Reply-To: <158861203563.340223.7585359869938129395.stgit@warthog.procyon.org.uk> References: <158861203563.340223.7585359869938129395.stgit@warthog.procyon.org.uk> User-Agent: StGit/0.21 MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Note the amount of data transferred in the fscache request op structure in the delivery/decode routines for the various FetchData operations. Also, we need to exclude the excess from this value and then we need to use this in directory read rather than actual_len. Signed-off-by: David Howells --- fs/afs/dir.c | 9 ++++----- fs/afs/fsclient.c | 5 +++++ fs/afs/yfsclient.c | 5 +++++ 3 files changed, 14 insertions(+), 5 deletions(-) diff --git a/fs/afs/dir.c b/fs/afs/dir.c index 0b3f33269fdd..577c975c13b0 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -211,9 +211,8 @@ static void afs_dir_dump(struct afs_vnode *dvnode, struct afs_read *req) pr_warn("DIR %llx:%llx f=%llx l=%llx al=%llx\n", dvnode->fid.vid, dvnode->fid.vnode, req->file_size, req->cache.len, req->actual_len); - pr_warn("DIR %llx %x %zx %zx\n", - req->cache.pos, req->cache.nr_pages, - req->iter->iov_offset, iov_iter_count(req->iter)); + pr_warn("DIR %llx %x %llx\n", + req->cache.pos, req->cache.nr_pages, req->cache.transferred); xas_for_each(&xas, page, last) { if (xas_retry(&xas, page)) @@ -323,7 +322,7 @@ static struct afs_read *afs_read_dir(struct afs_vnode *dvnode, struct key *key) nr_pages = (i_size + PAGE_SIZE - 1) / PAGE_SIZE; - req->actual_len = i_size; /* May change */ + req->cache.transferred = i_size; /* May change */ req->cache.len = nr_pages * PAGE_SIZE; /* We can ask for more than there is */ req->data_version = dvnode->status.data_version; /* May change */ iov_iter_mapping(&req->def_iter, READ, dvnode->vfs_inode.i_mapping, @@ -548,7 +547,7 @@ static int afs_dir_iterate(struct inode *dir, struct dir_context *ctx, /* walk through the blocks in sequence */ ret = 0; - while (ctx->pos < req->actual_len) { + while (ctx->pos < req->cache.transferred) { blkoff = ctx->pos & ~(sizeof(union afs_xdr_dir_block) - 1); /* Fetch the appropriate page from the directory and re-add it diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c index c9789294fc68..62cc8072874b 100644 --- a/fs/afs/fsclient.c +++ b/fs/afs/fsclient.c @@ -417,6 +417,11 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call) break; } + /* Pass the call's ref on the read request descriptor to the completion + * handler. + */ + req->cache.transferred = min(req->actual_len, req->cache.len); + set_bit(FSCACHE_IO_DATA_FROM_SERVER, &req->cache.flags); if (req->cache.io_done) req->cache.io_done(&req->cache); diff --git a/fs/afs/yfsclient.c b/fs/afs/yfsclient.c index 6ea97233c0d2..fb3f006be31c 100644 --- a/fs/afs/yfsclient.c +++ b/fs/afs/yfsclient.c @@ -531,6 +531,11 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call) break; } + /* Pass the call's ref on the read request descriptor to the completion + * handler. + */ + req->cache.transferred = min(req->actual_len, req->cache.len); + set_bit(FSCACHE_IO_DATA_FROM_SERVER, &req->cache.flags); if (req->cache.io_done) req->cache.io_done(&req->cache);