From patchwork Wed Feb 15 21:10:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Burkov X-Patchwork-Id: 13142227 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99B42C636CC for ; Wed, 15 Feb 2023 21:10:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230131AbjBOVKw (ORCPT ); Wed, 15 Feb 2023 16:10:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230202AbjBOVKf (ORCPT ); Wed, 15 Feb 2023 16:10:35 -0500 Received: from wout4-smtp.messagingengine.com (wout4-smtp.messagingengine.com [64.147.123.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 269D255A6; Wed, 15 Feb 2023 13:10:21 -0800 (PST) Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.west.internal (Postfix) with ESMTP id 828C332009B6; Wed, 15 Feb 2023 16:10:18 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Wed, 15 Feb 2023 16:10:18 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bur.io; h=cc :content-transfer-encoding:date:date:from:from:in-reply-to :message-id:mime-version:reply-to:sender:subject:subject:to:to; s=fm1; t=1676495418; x=1676581818; bh=GIWUKbLozinPeggLVCmnWZdsd /FdjO3reVTGgLkvVfM=; b=hFuKvF63yBjka4K1NVqt3Q71em/YMitV9yJD9Shap lh618rrCsnbZ/xxuvxdCQDOspiwGCRJ4pQ0dc/aX+ZNsypAcRmJC6cM7WjESUatA NWW52aCZFkpOwyrxqSjT1WcX0kxe4EHfZ6QqephYVcfMVMtR3T2ttxkYSVodMWN8 PTUNl1OFNi0RD9pxybgN+Vfro5gwfQfQy8cZaPu+0XvJbb2DcAnoV1ZMe+huDHYJ UdOntFjJBFZUz4mSbSo6tCUKQpxCIPzgA341oo1X/8fWb+5DboItmXckN/a4MW9B 2jd4RnTdKsaLjpUs3oGEB0FY3aR1t0BS8Ny72xSTLghwA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:message-id :mime-version:reply-to:sender:subject:subject:to:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t= 1676495418; x=1676581818; bh=GIWUKbLozinPeggLVCmnWZdsd/FdjO3reVT GgLkvVfM=; b=T5ePQ96B66BMewtIRWeGiwPefbhAwHbJfsugoWYt3lCE5Q5a5he i828sjh++9ESy1U9XIo/ZXVriJS/xnaQ3EjP0mwOuMsNkHefgACvLXl3fARRamhK 7jQ9dxb7NXH6r4ofIOnEk4/IBnxa/v+jP1BEoBZ1db6eLu5uPOqDED85Ywqumdv2 XrwoX/Vv620H4stR162SZMYv3XQGmQYBPKb+BGd+n3EoLkUCF6sCg4jXqBIzYag+ 5qnlD9kBHebh8BHYGe+pX/BGPtde+l3OMMP4pLdlGWdZECPHaqsH6kK3ZwdDLbUR IJpPWbcersBHIfmDgznVrQj1FDVRE78ESdw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrudeihedgudefkecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffoggfgsedtkeertd ertddtnecuhfhrohhmpeeuohhrihhsuceuuhhrkhhovhcuoegsohhrihhssegsuhhrrdhi oheqnecuggftrfgrthhtvghrnhepudeitdelueeijeefleffveelieefgfejjeeigeekud duteefkefffeethfdvjeevnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehm rghilhhfrhhomhepsghorhhishessghurhdrihho X-ME-Proxy: Feedback-ID: i083147f8:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 15 Feb 2023 16:10:17 -0500 (EST) From: Boris Burkov To: linux-btrfs@vger.kernel.org, kernel-team@fb.com, fstests@vger.kernel.org Subject: [PATCH v5] btrfs: test block group size class loading logic Date: Wed, 15 Feb 2023 13:10:16 -0800 Message-Id: X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: fstests@vger.kernel.org Add a new test which checks that size classes in freshly loaded block groups after a cycle mount match size classes before going down Depends on the kernel patch: btrfs: add size class stats to sysfs Signed-off-by: Boris Burkov --- Changelog: v5: Instead of using _fixed_by_kernel_commit, use require_fs_sysfs to handle the needed sysfs file. The test is skipped on kernels without the file and runs correctly on new ones. v4: Fix dumb typo in _fixed_by_kernel_commit (left out leading underscore copy+pasting). Re-tested happy and sad case... v3: Re-add fixed_by_kernel_commit, but for the stats patch which is required, but not a fix in the strictest sense. v2: Drop the fixed_by_kernel_commit since the fix is not out past the btrfs development tree, so the fix is getting rolled in to the original broken commit. Modified the commit message to note the dependency on the new sysfs counters. tests/btrfs/283 | 50 +++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/283.out | 2 ++ 2 files changed, 52 insertions(+) create mode 100755 tests/btrfs/283 create mode 100644 tests/btrfs/283.out diff --git a/tests/btrfs/283 b/tests/btrfs/283 new file mode 100755 index 00000000..2176c8e4 --- /dev/null +++ b/tests/btrfs/283 @@ -0,0 +1,50 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2023 Meta Platforms, Inc. All Rights Reserved. +# +# FS QA Test 283 +# +# Test that mounting a btrfs filesystem properly loads block group size classes. +# +. ./common/preamble +_begin_fstest auto quick mount +_fixed_by_kernel_commit xxxxxxxx "btrfs: add size class stats to sysfs". + +sysfs_size_classes() { + local uuid="$(findmnt -n -o UUID "$SCRATCH_MNT")" + cat "/sys/fs/btrfs/$uuid/allocation/data/size_classes" +} + +_supported_fs btrfs +_require_scratch +_require_btrfs_fs_sysfs + +f="$SCRATCH_MNT/f" +small=$((16 * 1024)) +medium=$((1024 * 1024)) +large=$((16 * 1024 * 1024)) + +_scratch_mkfs >/dev/null +_scratch_mount +# Write files with extents in each size class +$XFS_IO_PROG -fc "pwrite -q 0 $small" $f.small +$XFS_IO_PROG -fc "pwrite -q 0 $medium" $f.medium +$XFS_IO_PROG -fc "pwrite -q 0 $large" $f.large +# Sync to force the extent allocation +sync +pre=$(sysfs_size_classes) + +# cycle mount to drop the block group cache +_scratch_cycle_mount + +# Another write causes us to actually load the block groups +$XFS_IO_PROG -fc "pwrite -q 0 $large" $f.large.2 +sync + +post=$(sysfs_size_classes) +diff <(echo $pre) <(echo $post) + +echo "Silence is golden" +# success, all done +status=0 +exit diff --git a/tests/btrfs/283.out b/tests/btrfs/283.out new file mode 100644 index 00000000..efb2c583 --- /dev/null +++ b/tests/btrfs/283.out @@ -0,0 +1,2 @@ +QA output created by 283 +Silence is golden