From patchwork Fri Nov 6 19:03:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11887825 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 1591D697 for ; Fri, 6 Nov 2020 19:05:17 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CC56120882 for ; Fri, 6 Nov 2020 19:05:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="N/BTEsal" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CC56120882 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.20999.47176 (Exim 4.92) (envelope-from ) id 1kb72I-0005Ev-Td; Fri, 06 Nov 2020 19:04:34 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 20999.47176; Fri, 06 Nov 2020 19:04:34 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kb72I-0005Ek-P8; Fri, 06 Nov 2020 19:04:34 +0000 Received: by outflank-mailman (input) for mailman id 20999; Fri, 06 Nov 2020 19:04:33 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kb72H-0004zS-Rg for xen-devel@lists.xenproject.org; Fri, 06 Nov 2020 19:04:33 +0000 Received: from casper.infradead.org (unknown [2001:8b0:10b:1236::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 0dad4b59-1b73-467f-827d-6f2a3aa13aa0; Fri, 06 Nov 2020 19:04:17 +0000 (UTC) Received: from [2001:4bb8:184:9a8d:9e34:f7f4:e59e:ad6f] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kb71f-0000uK-9c; Fri, 06 Nov 2020 19:03:56 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kb72H-0004zS-Rg for xen-devel@lists.xenproject.org; Fri, 06 Nov 2020 19:04:33 +0000 X-Inumbo-ID: 0dad4b59-1b73-467f-827d-6f2a3aa13aa0 Received: from casper.infradead.org (unknown [2001:8b0:10b:1236::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 0dad4b59-1b73-467f-827d-6f2a3aa13aa0; Fri, 06 Nov 2020 19:04:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=z4FJvyEBdJUNH2ICfgDhXYhI93Iugb+FUQTixBMdEJs=; b=N/BTEsalf53sWMF1NynFhjnBWQ uMEzJhDiUhbdgTn6HR32ujb4p0zRiPS+sOoVdEnyZv+Dij8IJUweK1eMVi2RBr1hXUSEwwavtHExg sNr9j1HAVcinwU0zvVZ9QarhyRI4g+YDE9woukNnt8R+toHJE6Yyj0N6xE2RsmnTfWYuqVKiRBcdc C+RJ0pjKXC9y7PJrEmbrlFyzinEMuLJP5ArJM2hoiLEKHH5IAxDcyRZUkdM+9P4+gn1Pn36IKFZYO AdL3p37VKRLnvBgnAkwYvUIBdzrmEngx2OqoC8PTe/8DN9HA5diR/JaO+uxOByGNXLNxU91/DaxUA FUf64JDg==; Received: from [2001:4bb8:184:9a8d:9e34:f7f4:e59e:ad6f] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kb71f-0000uK-9c; Fri, 06 Nov 2020 19:03:56 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Justin Sanders , Josef Bacik , Ilya Dryomov , Jack Wang , "Michael S. Tsirkin" , Jason Wang , Paolo Bonzini , Stefan Hajnoczi , Konrad Rzeszutek Wilk , =?utf-8?q?Roger_Pau_Monn?= =?utf-8?q?=C3=A9?= , Minchan Kim , Mike Snitzer , Song Liu , "Martin K. Petersen" , dm-devel@redhat.com, linux-block@vger.kernel.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, ceph-devel@vger.kernel.org, xen-devel@lists.xenproject.org, linux-raid@vger.kernel.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH 04/24] sd: update the bdev size in sd_revalidate_disk Date: Fri, 6 Nov 2020 20:03:16 +0100 Message-Id: <20201106190337.1973127-5-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201106190337.1973127-1-hch@lst.de> References: <20201106190337.1973127-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html This avoids the extra call to revalidate_disk_size in sd_rescan and is otherwise a no-op because the size did not change, or we are in the probe path. Signed-off-by: Christoph Hellwig Acked-by: Martin K. Petersen --- drivers/scsi/sd.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 656bcf4940d6d1..4a34dd5b153196 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1750,10 +1750,8 @@ static int sd_sync_cache(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr) static void sd_rescan(struct device *dev) { struct scsi_disk *sdkp = dev_get_drvdata(dev); - int ret; - ret = sd_revalidate_disk(sdkp->disk); - revalidate_disk_size(sdkp->disk, ret == 0); + sd_revalidate_disk(sdkp->disk); } static int sd_ioctl(struct block_device *bdev, fmode_t mode, @@ -3266,7 +3264,7 @@ static int sd_revalidate_disk(struct gendisk *disk) sdkp->first_scan = 0; set_capacity_revalidate_and_notify(disk, - logical_to_sectors(sdp, sdkp->capacity), false); + logical_to_sectors(sdp, sdkp->capacity), true); sd_config_write_same(sdkp); kfree(buffer); @@ -3276,7 +3274,7 @@ static int sd_revalidate_disk(struct gendisk *disk) * capacity to 0. */ if (sd_zbc_revalidate_zones(sdkp)) - set_capacity_revalidate_and_notify(disk, 0, false); + set_capacity_revalidate_and_notify(disk, 0, true); out: return 0;