On Thu, May 28, 2026 at 12:05:37PM +0800, Anand Jain wrote: > Verify that the cloned filesystem provides an f_fsid that is persistent > across mount cycles, yet unique from the original filesystem's f_fsid.
Might want to add that last part to the test description itself, because otherwise I don't know what 'verify' means. > Signed-off-by: Anand Jain <[email protected]> > --- > tests/generic/802 | 67 +++++++++++++++++++++++++++++++++++++++++++ > tests/generic/802.out | 7 +++++ > 2 files changed, 74 insertions(+) > create mode 100644 tests/generic/802 > create mode 100644 tests/generic/802.out > > diff --git a/tests/generic/802 b/tests/generic/802 > new file mode 100644 > index 000000000000..653e74e11b53 > --- /dev/null > +++ b/tests/generic/802 > @@ -0,0 +1,67 @@ > +#! /bin/bash > +# SPDX-License-Identifier: GPL-2.0 > +# Copyright (c) 2026 Anand Jain <[email protected]>. All Rights Reserved. > +# > +# FS QA Test 802 > +# Verify f_fsid and s_uuid of cloned filesystems across mount cycle. > + > +. ./common/preamble > + > +_begin_fstest auto quick mount clone > + > +_require_test > +_require_block_device $TEST_DEV > +_require_loop > + > +[ "$FSTYP" = "btrfs" ] && _fixed_by_kernel_commit xxxxxxxxxxxx \ > + "btrfs: use on-disk uuid for s_uuid in temp_fsid mounts" > +[ "$FSTYP" = "btrfs" ] && _fixed_by_kernel_commit xxxxxxxxxxxx \ > + "btrfs: derive f_fsid from on-disk fsuuid and dev_t" _fixed_by_fs_commit? > + > +_cleanup() > +{ > + cd / > + rm -r -f $tmp.* > + umount $mnt1 $mnt2 2>/dev/null > + _loop_image_destroy "${devs[@]}" 2> /dev/null > +} > + > +# 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 > + > +# Mount both filesystems simultaneously using mandatory clone mount options > +_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]} $mnt2 > || \ > + _fail "Failed to mount dev2" > + > +# Capture baseline filesystem IDs for comparison > +fsid_scratch=$(stat -f -c "%i" $mnt1) > +fsid_clone=$(stat -f -c "%i" $mnt2) > + > +echo "**** fsid initially ****" > +echo $fsid_scratch | sed -e "s/$fsid_scratch/FSID_SCRATCH/g" > +echo $fsid_clone | sed -e "s/$fsid_clone/FSID_CLONE/g" Why echo only to sed? --D > + > +# Verify that the fsids remain stable after a mount cycle, even when the > +# mount order is reversed. > +echo "**** fsid after 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" > + > +# Compare post mount-cycle values against the baseline > +stat -f -c "%i" $mnt1 | sed -e "s/$fsid_scratch/FSID_SCRATCH/g" > +stat -f -c "%i" $mnt2 | sed -e "s/$fsid_clone/FSID_CLONE/g" > + > +status=0 > +exit > diff --git a/tests/generic/802.out b/tests/generic/802.out > new file mode 100644 > index 000000000000..d1e008f122bb > --- /dev/null > +++ b/tests/generic/802.out > @@ -0,0 +1,7 @@ > +QA output created by 802 > +**** fsid initially **** > +FSID_SCRATCH > +FSID_CLONE > +**** fsid after mount cycle **** > +FSID_SCRATCH > +FSID_CLONE > -- > 2.43.0 > > _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
