mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
7e98d41a6e
Refactor every test in the entire test suite to use the new boilerplate functions. This also migrates all the test group information into the test files. This patch has been autogenerated via the command: ./tools/convert-group btrfs ceph cifs ext4 f2fs generic nfs ocfs2 overlay perf shared udf xfs Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Allison Henderson <allison.henderson@oracle.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
121 lines
3.8 KiB
Bash
Executable File
121 lines
3.8 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2015 SUSE Linux Products GmbH. All Rights Reserved.
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#
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# FS QA Test No. btrfs/104
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#
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# Test btrfs quota group consistency operations during snapshot
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# delete. Btrfs has had long standing issues with drop snapshot
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# failing to properly account for quota groups. This test crafts
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# several snapshot trees with shared and exclusive elements. One of
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# the trees is removed and then quota group consistency is checked.
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#
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# This issue is fixed by the following linux kernel patches:
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#
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# Btrfs: use btrfs_get_fs_root in resolve_indirect_ref
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# Btrfs: keep dropped roots in cache until transaciton commit
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# btrfs: qgroup: account shared subtree during snapshot delete
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#
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. ./common/preamble
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_begin_fstest auto qgroup
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# Import common functions.
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. ./common/filter
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# real QA test starts here
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_supported_fs btrfs
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_require_scratch
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_require_btrfs_qgroup_report
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# Create an fs tree of a given height at a target location. This is
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# done by agressively creating inline extents to expand the number of
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# nodes required. We also add an traditional extent so that
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# drop_snapshot is forced to walk at least one extent that is not
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# stored in metadata.
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#
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# NOTE: The ability to vary tree height for this test is very useful
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# for debugging problems with drop_snapshot(). As a result we retain
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# that parameter even though the test below always does level 2 trees.
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_explode_fs_tree () {
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local level=$1;
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local loc="$2";
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local n;
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if [ -z $loc ]; then
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echo "specify location for fileset"
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exit 1;
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fi
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case $level in
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1)# this always reproduces level 1 trees
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n=10;
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;;
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2)# this always reproduces level 2 trees
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n=1500
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;;
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3)# this always reproduces level 3 trees
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n=1000000;
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;;
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*)
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echo "Can't make level $level trees";
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exit 1;
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;;
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esac
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mkdir -p $loc
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for i in `seq -w 1 $n`; do
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$XFS_IO_PROG -f -c "pwrite 0 4095" $loc/file$i > /dev/null 2>&1
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done
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$XFS_IO_PROG -f -c "pwrite 0 128k" $loc/extentfile > /dev/null 2>&1
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}
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# Force the default leaf size as the calculations for making our btree
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# heights are based on that.
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_scratch_mkfs "--nodesize 16384" >> $seqres.full 2>&1
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_scratch_mount
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# populate the default subvolume and create a snapshot ('snap1')
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_explode_fs_tree 1 $SCRATCH_MNT/files
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_run_btrfs_util_prog subvolume snapshot $SCRATCH_MNT $SCRATCH_MNT/snap1
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# create new btree nodes in this snapshot. They will become shared
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# with the next snapshot we create.
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_explode_fs_tree 1 $SCRATCH_MNT/snap1/files-snap1
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# create our final snapshot ('snap2'), populate it with
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# exclusively owned nodes.
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#
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# As a result of this action, snap2 will get an implied ref to the
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# 128K extent created in the default subvolume.
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_run_btrfs_util_prog subvolume snapshot $SCRATCH_MNT/snap1 $SCRATCH_MNT/snap2
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_explode_fs_tree 1 $SCRATCH_MNT/snap2/files-snap2
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# Enable qgroups now that we have our filesystem prepared. This
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# will kick off a scan which we will have to wait for.
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_run_btrfs_util_prog quota enable $SCRATCH_MNT
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_run_btrfs_util_prog quota rescan -w $SCRATCH_MNT
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# Remount to clear cache, force everything to disk
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_scratch_cycle_mount
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# Finally, delete snap1 to trigger btrfs_drop_snapshot(). This
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# snapshot is most interesting to delete because it will cause some
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# nodes to go exclusively owned for snap2, while some will stay shared
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# with the default subvolume. That exercises a maximum of the drop
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# snapshot/qgroup interactions.
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#
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# snap2s imlied ref from to the 128K extent in files/ can be lost by
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# the root finding code in qgroup accounting due to snap1 no longer
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# providing a path to it. This was fixed by the first two patches
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# referenced above.
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_run_btrfs_util_prog subvolume delete $SCRATCH_MNT/snap1
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# "btrfs filesystem sync" will trigger subvolume deletion
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_run_btrfs_util_prog filesystem sync $SCRATCH_MNT
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# Qgroup will be checked by fstest at _check_scratch_fs()
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status=0
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exit
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