From patchwork Fri Nov 6 19:03:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11887995 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 63214697 for ; Fri, 6 Nov 2020 19:14:08 +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 290BF2151B for ; Fri, 6 Nov 2020 19:14:08 +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="tVd8geFS" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 290BF2151B 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.21051.47302 (Exim 4.92) (envelope-from ) id 1kb7B2-0007Ci-GJ; Fri, 06 Nov 2020 19:13:36 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 21051.47302; Fri, 06 Nov 2020 19:13:36 +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 1kb7B2-0007CU-8h; Fri, 06 Nov 2020 19:13:36 +0000 Received: by outflank-mailman (input) for mailman id 21051; Fri, 06 Nov 2020 19:13:35 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kb73Z-0004zS-U8 for xen-devel@lists.xenproject.org; Fri, 06 Nov 2020 19:05:53 +0000 Received: from casper.infradead.org (unknown [2001:8b0:10b:1236::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 01e1f1af-4970-4177-b232-31b43ea69eec; Fri, 06 Nov 2020 19:04:43 +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 1kb729-00013h-89; Fri, 06 Nov 2020 19:04:25 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kb73Z-0004zS-U8 for xen-devel@lists.xenproject.org; Fri, 06 Nov 2020 19:05:53 +0000 X-Inumbo-ID: 01e1f1af-4970-4177-b232-31b43ea69eec Received: from casper.infradead.org (unknown [2001:8b0:10b:1236::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 01e1f1af-4970-4177-b232-31b43ea69eec; Fri, 06 Nov 2020 19:04:43 +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=4bS/eZqoJAQR/DSs9IGqi2g9LCY9L0WWDnWefDh2k5M=; b=tVd8geFSv+/a4ICZqJ4miUgAZr bSnQVkuUj9Q1sOtmlqt7w1/fnbDPR0IyuD7NylvEPospNvxVXib/Q1nUDuQNSaWDRFbsRXA9dbw6O R/GqSzwPpwI2zGGmixd50oCio/LgvmNAgH3JNK5kktQ8eJb8dFVZtMV8LOVf1+XaUk33UAT4qwsbd gO37JazEvqPXopiAzJkFz2g/BDk5ZGRZJMue7aCghVAZN1rAh3Kp+t7apQN+sU6hGH5YlyzTNFcs+ V0tQaIvP9jr1OAo1S5SMYXLTVLk25tGMl0HLivTuYcN5VAr0bXyzDQ4D/TX6qd2S5zUuUJoLnnNDa VVQ+Kqmw==; 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 1kb729-00013h-89; Fri, 06 Nov 2020 19:04:25 +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 19/24] zram: use set_capacity_and_notify Date: Fri, 6 Nov 2020 20:03:31 +0100 Message-Id: <20201106190337.1973127-20-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 Use set_capacity_and_notify to set the size of both the disk and block device. This also gets the uevent notifications for the resize for free. Signed-off-by: Christoph Hellwig --- drivers/block/zram/zram_drv.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 1b697208d66157..6d15d51cee2b7e 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -1695,7 +1695,7 @@ static void zram_reset_device(struct zram *zram) disksize = zram->disksize; zram->disksize = 0; - set_capacity(zram->disk, 0); + set_capacity_and_notify(zram->disk, 0); part_stat_set_all(&zram->disk->part0, 0); up_write(&zram->init_lock); @@ -1741,9 +1741,7 @@ static ssize_t disksize_store(struct device *dev, zram->comp = comp; zram->disksize = disksize; - set_capacity(zram->disk, zram->disksize >> SECTOR_SHIFT); - - revalidate_disk_size(zram->disk, true); + set_capacity_and_notify(zram->disk, zram->disksize >> SECTOR_SHIFT); up_write(&zram->init_lock); return len; @@ -1790,7 +1788,6 @@ static ssize_t reset_store(struct device *dev, /* Make sure all the pending I/O are finished */ fsync_bdev(bdev); zram_reset_device(zram); - revalidate_disk_size(zram->disk, true); bdput(bdev); mutex_lock(&bdev->bd_mutex);