From patchwork Thu Jun 20 17:31:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 13706045 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 72EA71B3F3C for ; Thu, 20 Jun 2024 17:33:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718904801; cv=none; b=AlqEY2/8PxWAXXElVBFTZ1iTZNAAoIQ/UbpIJ0EQhleQ5fZOtm3JoaXgpLXZwKOlMaVG5l961oYde8c/49//JIv19DD9pWsONTES5QKvRUQagV4W/5aVDgsd0CLn2NpNAM25ty0ad0QS+PRRQ31PFXX7wY34ViJRS8f3a9ewzLM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718904801; c=relaxed/simple; bh=uNQJZwf5yvLmUciK79dFXHBncqmHSHmd+MY40pmnnuA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dce9nGjMGurp2tUZygYlQPe5m+eurDMBzjBe/etOHeBGtkU9W/U3esCUc8RUjio5AioOOcqsj/yhuHjMMKFzA8q+yJooEehOOH99TRcCtUuB2Hh2p1Csb2eziKAeCbjt8n75hMfx2783xF7IU4pIRkupf3Plv67sDSAjMGcTnWk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=VcOdI4K7; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="VcOdI4K7" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718904798; 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=Ts5ZCKmEyEPwC8pHpdqPl9OxtkpjpqDkyGOj4sN+myw=; b=VcOdI4K7XaoPKWwZ2CTjVklO0uYPlaBltIPw/3G/ZNf5rcjx3CE6Yy6+oe+8/Bvosi2pd0 4CeIP/cFuY8tZd3v3a0ilLeNSdzUgpYW1PzHRP68lYk+WSJG8WgJTArjA/jE+QR7HXQQpr UoSNveiL8MceN+UdLFNm8o4TK4sgKlQ= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-378-OqI8PTsvNIisGVH6w9IAGQ-1; Thu, 20 Jun 2024 13:33:14 -0400 X-MC-Unique: OqI8PTsvNIisGVH6w9IAGQ-1 Received: from mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.15]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 2C42B1956056; Thu, 20 Jun 2024 17:33:03 +0000 (UTC) Received: from warthog.procyon.org.com (unknown [10.39.195.156]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 340171955E80; Thu, 20 Jun 2024 17:32:56 +0000 (UTC) From: David Howells To: Christian Brauner , Steve French , Matthew Wilcox Cc: David Howells , Jeff Layton , Gao Xiang , Dominique Martinet , Marc Dionne , Paulo Alcantara , Shyam Prasad N , Tom Talpey , Eric Van Hensbergen , Ilya Dryomov , netfs@lists.linux.dev, 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-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 09/17] cifs: Defer read completion Date: Thu, 20 Jun 2024 18:31:27 +0100 Message-ID: <20240620173137.610345-10-dhowells@redhat.com> In-Reply-To: <20240620173137.610345-1-dhowells@redhat.com> References: <20240620173137.610345-1-dhowells@redhat.com> Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 --- fs/smb/client/smb2pdu.c | 15 ++++++++++++--- include/trace/events/netfs.h | 7 +++++-- 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c index 38a06e8a0f90..e213cecd5094 100644 --- a/fs/smb/client/smb2pdu.c +++ b/fs/smb/client/smb2pdu.c @@ -4484,6 +4484,16 @@ smb2_new_read_req(void **buf, unsigned int *total_len, return rc; } +static void smb2_readv_worker(struct work_struct *work) +{ + struct cifs_io_subrequest *rdata = + container_of(work, struct cifs_io_subrequest, subreq.work); + + netfs_subreq_terminated(&rdata->subreq, + (rdata->result == 0 || rdata->result == -EAGAIN) ? + rdata->got_bytes : rdata->result, true); +} + static void smb2_readv_callback(struct mid_q_entry *mid) { @@ -4578,9 +4588,8 @@ smb2_readv_callback(struct mid_q_entry *mid) rdata->result = 0; } rdata->credits.value = 0; - netfs_subreq_terminated(&rdata->subreq, - (rdata->result == 0 || rdata->result == -EAGAIN) ? - rdata->got_bytes : rdata->result, true); + INIT_WORK(&rdata->subreq.work, smb2_readv_worker); + queue_work(cifsiod_wq, &rdata->subreq.work); release_mid(mid); add_credits(server, &credits, 0); } diff --git a/include/trace/events/netfs.h b/include/trace/events/netfs.h index fc5dbd19f120..db603a4e22cd 100644 --- a/include/trace/events/netfs.h +++ b/include/trace/events/netfs.h @@ -412,6 +412,7 @@ TRACE_EVENT(netfs_folio, __field(ino_t, ino) __field(pgoff_t, index) __field(unsigned int, nr) + __field(bool, ra_trigger) __field(enum netfs_folio_trace, why) ), @@ -420,11 +421,13 @@ TRACE_EVENT(netfs_folio, __entry->why = why; __entry->index = folio_index(folio); __entry->nr = folio_nr_pages(folio); + __entry->ra_trigger = folio_test_readahead(folio); ), - TP_printk("i=%05lx ix=%05lx-%05lx %s", + TP_printk("i=%05lx ix=%05lx-%05lx %s%s", __entry->ino, __entry->index, __entry->index + __entry->nr - 1, - __print_symbolic(__entry->why, netfs_folio_traces)) + __print_symbolic(__entry->why, netfs_folio_traces), + __entry->ra_trigger ? " *RA*" : "") ); TRACE_EVENT(netfs_write_iter,