From patchwork Mon Feb 3 20:00:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vivek Goyal X-Patchwork-Id: 11363377 X-Patchwork-Delegate: snitzer@redhat.com 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 AB37E14D5 for ; Mon, 3 Feb 2020 20:01:22 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6819A20721 for ; Mon, 3 Feb 2020 20:01:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="YiKHB/Ha" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6819A20721 Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=dm-devel-bounces@redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1580760081; h=from:from:sender:sender: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:list-id:list-help: list-unsubscribe:list-subscribe:list-post; bh=JWjlLG7PHmxR8/eQrfEHfogKj0mPx4zYIhAPX4TGfzA=; b=YiKHB/HaI/fFLoeSlnEQhOnQXGHL+sNKRtMrUbHT6+/69/v0isneFYbxrcNuzM3bWfoObe c5lK1hlkr/UCuP7iAumX6rswEexURG9Fy9Ni6xJGHDjLQh8b6kRLfywfFiVStCa1rHKyLb E1pwybw20ocJlJ6r4wFVCVMWChBg2D0= 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-43-2OwgjkL2PuiFon9faWcoQQ-1; Mon, 03 Feb 2020 15:01:16 -0500 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2D77D1B2C981; Mon, 3 Feb 2020 20:01:10 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 03AE81BC6D; Mon, 3 Feb 2020 20:01:10 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 9BBAB8173E; Mon, 3 Feb 2020 20:01:09 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 013K0nfC021351 for ; Mon, 3 Feb 2020 15:00:49 -0500 Received: by smtp.corp.redhat.com (Postfix) id F1E778CCE0; Mon, 3 Feb 2020 20:00:48 +0000 (UTC) Delivered-To: dm-devel@redhat.com Received: from horse.redhat.com (unknown [10.18.25.35]) by smtp.corp.redhat.com (Postfix) with ESMTP id 777C48CCC2; Mon, 3 Feb 2020 20:00:46 +0000 (UTC) Received: by horse.redhat.com (Postfix, from userid 10451) id 0DB832246B1; Mon, 3 Feb 2020 15:00:46 -0500 (EST) From: Vivek Goyal To: linux-fsdevel@vger.kernel.org, linux-nvdimm@lists.01.org, dan.j.williams@intel.com, hch@infradead.org Date: Mon, 3 Feb 2020 15:00:26 -0500 Message-Id: <20200203200029.4592-3-vgoyal@redhat.com> In-Reply-To: <20200203200029.4592-1-vgoyal@redhat.com> References: <20200203200029.4592-1-vgoyal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-loop: dm-devel@redhat.com Cc: vishal.l.verma@intel.com, dm-devel@redhat.com, vgoyal@redhat.com Subject: [dm-devel] [PATCH 2/5] s390, dax: Add dax zero_page_range operation to dcssblk driver X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-MC-Unique: 2OwgjkL2PuiFon9faWcoQQ-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Add dax operation zero_page_range. This just calls generic helper generic_dax_zero_page_range(). Suggested-by: Christoph Hellwig Signed-off-by: Vivek Goyal --- drivers/s390/block/dcssblk.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 63502ca537eb..f6709200bcd0 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -62,6 +62,7 @@ static const struct dax_operations dcssblk_dax_ops = { .dax_supported = generic_fsdax_supported, .copy_from_iter = dcssblk_dax_copy_from_iter, .copy_to_iter = dcssblk_dax_copy_to_iter, + .zero_page_range = dcssblk_dax_zero_page_range, }; struct dcssblk_dev_info { @@ -941,6 +942,12 @@ dcssblk_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, return __dcssblk_direct_access(dev_info, pgoff, nr_pages, kaddr, pfn); } +static int dcssblk_dax_zero_page_range(struct dax_device *dax_dev,pgoff_t pgoff, + unsigned offset, size_t len) +{ + return generic_dax_zero_page_range(dax_dev, pgoff, offset, len); +} + static void dcssblk_check_params(void) {