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: 11887799 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 647E9697 for ; Fri, 6 Nov 2020 19:04:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E87020B80 for ; Fri, 6 Nov 2020 19:04:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="tVd8geFS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728215AbgKFTEu (ORCPT ); Fri, 6 Nov 2020 14:04:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728053AbgKFTEm (ORCPT ); Fri, 6 Nov 2020 14:04:42 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B129C0613CF; Fri, 6 Nov 2020 11:04:42 -0800 (PST) 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 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org 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);