[f2fs-dev] [PATCH v7 07/11] fstests: verify libblkid resolution of duplicate UUIDs
Anand Jain via Linux-f2fs-devel <[email protected]>
| Newsgroups | net.sourceforge.lists.linux-f2fs-devel,org.kernel.vger.fstests,org.kernel.vger.linux-btrfs,org.kernel.vger.linux-ext4,org.kernel.vger.linux-xfs |
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| Message-ID | <1cedecd48612d912c7501ab1f88be1c70c4aa1b2.1781694879.git.asj@kernel.org> |
Verify how findmnt, df (libblkid) resolve device paths when multiple block devices share the same FSUUID. Signed-off-by: Anand Jain <[email protected]> --- tests/generic/803 | 72 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/803.out | 6 ++++ 2 files changed, 78 insertions(+) create mode 100644 tests/generic/803 create mode 100644 tests/generic/803.out diff --git a/tests/generic/803 b/tests/generic/803 new file mode 100644 index 000000000000..77901592366c --- /dev/null +++ b/tests/generic/803 @@ -0,0 +1,72 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2026 Anand Jain <[email protected]>. All Rights Reserved. +# +# FS QA Test 803 +# Check if the mountinfo based findmnt would resolve to the common uuid +# as per the blkid (libblkid based). + +. ./common/preamble +. ./common/filter + +_begin_fstest auto quick mount clone + +_require_test +_require_block_device $TEST_DEV +_require_loop + +_cleanup() +{ + cd / + rm -r -f $tmp.* + umount $mnt1 $mnt2 2>/dev/null + _loop_image_destroy "${devs[@]}" 2> /dev/null +} + +# Normalize pool devices and mount points names +filter_pool() +{ + sed -e "s|${devs[0]}|DEV1|g" -e "s|${mnt1}|MNT1|g" \ + -e "s|${devs[1]}|DEV2|g" -e "s|${mnt2}|MNT2|g" | _filter_spaces +} + +# Setup base loop device and its clone +devs=() +_loop_image_create_clone devs +mkdir -p $TEST_DIR/$seq +mnt1=$TEST_DIR/$seq/mnt1 +mnt2=$TEST_DIR/$seq/mnt2 +mkdir -p $mnt1 +mkdir -p $mnt2 + +# Get the uuid from the source device +fsuuid=$(blkid -s UUID -o value ${devs[0]}) + +# Mount both identical UUID filesystems simultaneously +_mount $(_common_dev_mount_options) $(_clone_mount_option) ${devs[0]} $mnt1 || \ + _fail "Failed to mount dev1" +_mount $(_common_dev_mount_options) $(_clone_mount_option) ${devs[1]} $mnt2 || \ + _fail "Failed to mount dev2" + +findmnt -o SOURCE,TARGET,UUID "${devs[0]}" | tail -n +2 | \ + sed -e "s/${fsuuid}/FSUUID/g" | filter_pool +findmnt -o SOURCE,TARGET,UUID "${devs[1]}" | tail -n +2 | \ + sed -e "s/${fsuuid}/FSUUID/g" | filter_pool + +# Btrfs assigned a random uuid for the clone fs before the fix. +# Cycle mounts and reverse the initialization (source and clone fs) order. +echo "**** mount cycle ****" +_unmount $mnt1 +_unmount $mnt2 +_mount $(_common_dev_mount_options) $(_clone_mount_option) ${devs[1]} $mnt2 || \ + _fail "Failed to mount dev2" +_mount $(_common_dev_mount_options) $(_clone_mount_option) ${devs[0]} $mnt1 || \ + _fail "Failed to mount dev1" + +findmnt -o SOURCE,TARGET,UUID "${devs[0]}" | tail -n +2 | \ + sed -e "s/${fsuuid}/FSUUID/g" | filter_pool +findmnt -o SOURCE,TARGET,UUID "${devs[1]}" | tail -n +2 | \ + sed -e "s/${fsuuid}/FSUUID/g" | filter_pool + +status=0 +exit diff --git a/tests/generic/803.out b/tests/generic/803.out new file mode 100644 index 000000000000..3a130c662430 --- /dev/null +++ b/tests/generic/803.out @@ -0,0 +1,6 @@ +QA output created by 803 +DEV1 MNT1 FSUUID +DEV2 MNT2 FSUUID +**** mount cycle **** +DEV1 MNT1 FSUUID +DEV2 MNT2 FSUUID -- 2.43.0 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel