From patchwork Fri Mar 31 16:33:02 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 9656781 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A8AE460349 for ; Fri, 31 Mar 2017 16:35:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9B2D328574 for ; Fri, 31 Mar 2017 16:35:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8FE73286E0; Fri, 31 Mar 2017 16:35:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 54E6928574 for ; Fri, 31 Mar 2017 16:35:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933478AbdCaQey (ORCPT ); Fri, 31 Mar 2017 12:34:54 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:35518 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933438AbdCaQd7 (ORCPT ); Fri, 31 Mar 2017 12:33:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=Xv3+43JFjPyqzptyElqbX1NB/n6oTfNli4rJzkeZs8g=; b=KuRn7pDXyD01DoEho1Xkw1N4B ScIMGjTjE1TfX952eFDfIcRpaSOGIZxkk+wWA3ubnVrbb9U53Jy3uVzCcBLau9lsWS8HcpcOaCZz9 VKkf8tZxtCdnRjgm3/N8dJlyR9p+ir+qdXF2OLubibc2E5kQwvrgOcQSTKHB9S702MwzNu7uZZa8x QRm+H2Rnu+auJi4eLSOh+NEFvUDAQRkwhQLpyY/3YdF86UdowsWFLPdAdLTkZmQpsGzFU7tHtD3xr NjiE4dLIKjU3xGEGw0AocBGjyzEwyf1tJznkRpT99ityYGwTuAuMG0pguHRvznCHg6b/7QQTfhtwn Pw/CjgUVA==; Received: from clnet-p099-196.ikbnet.co.at ([83.175.99.196] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.87 #1 (Red Hat Linux)) id 1ctzUp-0003sh-Cw; Fri, 31 Mar 2017 16:33:55 +0000 From: Christoph Hellwig To: axboe@kernel.dk, martin.petersen@oracle.com, agk@redhat.com, snitzer@redhat.com, shli@kernel.org, philipp.reisner@linbit.com, lars.ellenberg@linbit.com Cc: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, drbd-dev@lists.linbit.com, dm-devel@redhat.com, linux-raid@vger.kernel.org Subject: [PATCH 14/25] sd: implement unmapping Write Zeroes Date: Fri, 31 Mar 2017 18:33:02 +0200 Message-Id: <20170331163313.31821-15-hch@lst.de> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170331163313.31821-1-hch@lst.de> References: <20170331163313.31821-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Try to use a write same with unmap bit variant if the device supports it and the caller allows for it. Signed-off-by: Christoph Hellwig Reviewed-by: Martin K. Petersen --- drivers/scsi/sd.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index d8d9c0bdd93c..001593ed0444 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -803,6 +803,15 @@ static int sd_setup_write_zeroes_cmnd(struct scsi_cmnd *cmd) u64 sector = blk_rq_pos(rq) >> (ilog2(sdp->sector_size) - 9); u32 nr_sectors = blk_rq_sectors(rq) >> (ilog2(sdp->sector_size) - 9); + if (!(rq->cmd_flags & REQ_NOUNMAP)) { + switch (sdkp->provisioning_mode) { + case SD_LBP_WS16: + return sd_setup_write_same16_cmnd(cmd, true); + case SD_LBP_WS10: + return sd_setup_write_same10_cmnd(cmd, true); + } + } + if (sdp->no_write_same) return BLKPREP_INVALID; if (sdkp->ws16 || sector > 0xffffffff || nr_sectors > 0xffff)