From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1740DCCF9F8 for ; Mon, 3 Nov 2025 13:35:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=hO1fGB9rZflFZnpkBXEN3gAkbvvO4Bifx3igGIgr22k=; b=Jt/cm5YlHRrzjSOpixdGNedX0z 7YwixgAuyPfdwRdKl95f5K8rQ+4TQZfPh5NA3zSLkoL5O9fgmXL8/nBf15nnX2EIlz2A9g8jQpPQ5 RlMvqikhDvojykOg8oFbwwEtXCbPMIxhk2thhW/MUCCNXFt5vTQrhBr2QzBw2oiQGrwIAWcHFjYDl oZDjfQXNhJnYkA8S5bZHwgp07U/0DAhtD1wlb8ot9V6qAhD4xt/P8Pkuijbz0VT9xJ78wRlbcw1ZT duE6BzsnyfgBbWdvS0pf8scEbrCALmm1xVXNF+8sF2Mb/H+wuoQ+ro1HT7kefsjHB530j092zvuIv X6IpCeZw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vFuip-00000009ubm-3qLO; Mon, 03 Nov 2025 13:35:47 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vFuik-00000009uTC-3pVZ for linux-nvme@lists.infradead.org; Mon, 03 Nov 2025 13:35:46 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 7A2A5438B0; Mon, 3 Nov 2025 13:35:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 738FDC116B1; Mon, 3 Nov 2025 13:35:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762176942; bh=F0Y53yOzQK0GEWQg9LKd5r/CNwpbzxyWp8cxsYd+jOA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=n2oVKNNMUvJ8cJfbddT5JqfEGnZu+PKOKvlluxoX+09R9bK7871wsXLQXYnjnZ4px a7hSP63D3aEVSbfefzjwWsak9UfZdY1jbiC2+HGoXGnWCzl/fRbaVNKTVs4R5u0Pnn h+ze/ch9odAyItVn0c6oM4DHJbD0vePHeRIFRJ3nt8OLsRCBimBPSUzCUmO4j/GmcN M8YgOZg3nUZbytaO/Tm68Ci66OATX8dDofaRplg1Hfm25qUen8bJzM+srZyr8RdOWN GawMbETQA2Hj/rGfntp2C/QkDOFuNKrUH9MicC8YMNcenIshxjmEhkOLG/Nc/AqX/f Mrl5VoBTxSSVA== From: Damien Le Moal To: Jens Axboe , linux-block@vger.kernel.org, linux-nvme@lists.infradead.org, Keith Busch , Christoph Hellwig , dm-devel@lists.linux.dev, Mike Snitzer , Mikulas Patocka , "Martin K . Petersen" , linux-scsi@vger.kernel.org, linux-xfs@vger.kernel.org, Carlos Maiolino , linux-btrfs@vger.kernel.org, David Sterba Subject: [PATCH v2 14/15] btrfs: use blkdev_report_zones_cached() Date: Mon, 3 Nov 2025 22:31:22 +0900 Message-ID: <20251103133123.645038-15-dlemoal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251103133123.645038-1-dlemoal@kernel.org> References: <20251103133123.645038-1-dlemoal@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251103_053543_014104_7AEA789B X-CRM114-Status: GOOD ( 12.09 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Modify btrfs_get_dev_zones() and btrfs_sb_log_location_bdev() to replace the call to blkdev_report_zones() with blkdev_report_zones_cached() to speed-up mount operations. btrfs_get_dev_zone_info() is also modified to take into account the BLK_ZONE_COND_ACTIVE condition, which is equivalent to either BLK_ZONE_COND_IMP_OPEN, BLK_ZONE_COND_EXP_OPEN or BLK_ZONE_COND_CLOSED. With this change, mounting a freshly formatted large capacity (30 TB) SMR HDD completes under 100ms compared to over 1.8s before. Signed-off-by: Damien Le Moal Acked-by: David Sterba --- fs/btrfs/zoned.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c index 0ea0df18a8e4..a16b1a896c78 100644 --- a/fs/btrfs/zoned.c +++ b/fs/btrfs/zoned.c @@ -264,8 +264,8 @@ static int btrfs_get_dev_zones(struct btrfs_device *device, u64 pos, } } - ret = blkdev_report_zones(device->bdev, pos >> SECTOR_SHIFT, *nr_zones, - copy_zone_info_cb, zones); + ret = blkdev_report_zones_cached(device->bdev, pos >> SECTOR_SHIFT, + *nr_zones, copy_zone_info_cb, zones); if (ret < 0) { btrfs_err(device->fs_info, "zoned: failed to read zone %llu on %s (devid %llu)", @@ -494,6 +494,7 @@ int btrfs_get_dev_zone_info(struct btrfs_device *device, bool populate_cache) case BLK_ZONE_COND_IMP_OPEN: case BLK_ZONE_COND_EXP_OPEN: case BLK_ZONE_COND_CLOSED: + case BLK_ZONE_COND_ACTIVE: __set_bit(nreported, zone_info->active_zones); nactive++; break; @@ -896,9 +897,9 @@ int btrfs_sb_log_location_bdev(struct block_device *bdev, int mirror, int rw, if (sb_zone + 1 >= nr_zones) return -ENOENT; - ret = blkdev_report_zones(bdev, zone_start_sector(sb_zone, bdev), - BTRFS_NR_SB_LOG_ZONES, copy_zone_info_cb, - zones); + ret = blkdev_report_zones_cached(bdev, zone_start_sector(sb_zone, bdev), + BTRFS_NR_SB_LOG_ZONES, + copy_zone_info_cb, zones); if (ret < 0) return ret; if (unlikely(ret != BTRFS_NR_SB_LOG_ZONES)) -- 2.51.0