| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2020 Facebook. All Rights Reserved. |
| # |
| # FS QA Test 218 |
| # |
| # Make a seed device, add a sprout to it, and then make sure we can still read |
| # the device stats for both devices after we remount with the new sprout device. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick volume |
| |
| . ./common/filter |
| . ./common/filter.btrfs |
| |
| _fixed_by_kernel_commit 124604eb50f8 \ |
| "btrfs: init device stats for seed devices" |
| _require_test |
| _require_scratch_dev_pool 2 |
| |
| _scratch_dev_pool_get 2 |
| |
| dev_seed=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $1}') |
| dev_sprout=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}') |
| |
| # Create the seed device |
| _mkfs_dev $dev_seed |
| _mount $dev_seed $SCRATCH_MNT |
| $XFS_IO_PROG -f -d -c "pwrite -S 0xab 0 1M" $SCRATCH_MNT/foo > /dev/null |
| $BTRFS_UTIL_PROG filesystem show -m $SCRATCH_MNT | \ |
| _filter_btrfs_filesystem_show |
| _scratch_unmount |
| $BTRFS_TUNE_PROG -S 1 $dev_seed |
| |
| # Mount the seed device and add the rw device |
| _mount -o ro $dev_seed $SCRATCH_MNT |
| _btrfs device add -f $dev_sprout $SCRATCH_MNT >> $seqres.full |
| $BTRFS_UTIL_PROG device stats $SCRATCH_MNT | _filter_scratch_pool |
| _scratch_unmount |
| |
| # Now remount, validate the device stats do not fail |
| _mount $dev_sprout $SCRATCH_MNT |
| $BTRFS_UTIL_PROG device stats $SCRATCH_MNT | _filter_scratch_pool |
| |
| _scratch_dev_pool_put |
| |
| # success, all done |
| status=0 |
| exit |
