mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Amir Goldstein
2ab614524d
When TEST/SCRATCH_DEV are configured to the base fs block device, use this information to mount base fs before running tests, unmount it after running tests and cycle on _test_cycle_mount along with the overlay mounts. This helps catching overlayfs bugs related to leaking objects in underlying (base) fs. To preserve expected tests behavior, the semantics are: - _scratch_mkfs mounts the base fs, cleans all files, creates lower/upper dirs and keeps base fs mounted - _scratch_mount mounts base fs (if needed) and mounts overlay - _scratch_unmount unmounts overlay and base fs Tests that use _scratch_unmount to unmount a custom overlay mount and expect to have access to overlay base dir, were fixed to use explicit umount $SCRATCH_MNT instead. The overlay test itself, does not support formatting the base fs, so config options like MKFS_OPTIONS and FSCK_OPTIONS are ignored on 'check -overlay'. The config option MOUNT_OPTIONS is used to mount the base scratch fs. The config option TEST_FS_MOUNT_OPTS is used to mount the base test fs. The config option OVERLAY_MOUNT_OPTIONS is used to mount both test and scratch overlay mounts. Signed-off-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
47 lines
1.6 KiB
Plaintext
47 lines
1.6 KiB
Plaintext
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To run xfstest on overlayfs, configure the variables of TEST and SCRATCH
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partitions to be used as the "base fs" and run './check -overlay'.
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For example, the following config file can be used to run tests on
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xfs test/scratch partitions:
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TEST_DEV=/dev/sda5
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TEST_DIR=/mnt/test
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SCRATCH_DEV=/dev/sda6
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SCRATCH_MNT=/mnt/scratch
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FSTYP=xfs
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Using the same config file, but executing './check -overlay' will
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use the same partitions as base fs for overlayfs directories
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and set TEST_DIR/SCRATCH_MNT values to overlay mount points, i.e.:
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/mnt/test/ovl-mnt and /mnt/scratch/ovl-mnt, for the context of
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individual tests.
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'./check -overlay' does not support mkfs and fsck on the base fs, so
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the base fs should be pre-formatted before starting the -overlay run.
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An easy way to accomplish this is by running './check <some test>' once,
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before running './check -overlay'.
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Because of the lack of mkfs support, multi-section config files are only
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partly supported with './check -overlay'. Only multi-section files that
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do not change FSTYP and MKFS_OPTIONS can be safely used with -overlay.
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For example, the following multi-section config file can be used to
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run overlay tests on the same base fs, but with different mount options:
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[xfs]
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TEST_DEV=/dev/sda5
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TEST_DIR=/mnt/test
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SCRATCH_DEV=/dev/sda6
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SCRATCH_MNT=/mnt/scratch
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FSTYP=xfs
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[xfs_pquota]
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MOUNT_OPTIONS="-o pquota"
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TEST_FS_MOUNT_OPTS="-o noatime"
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OVERLAY_MOUNT_OPTIONS="-o redirect_dir=off"
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In the example above, MOUNT_OPTIONS will be used to mount the base scratch fs,
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TEST_FS_MOUNT_OPTS will be used to mount the base test fs and
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OVERLAY_MOUNT_OPTIONS will be used to mount both test and scratch overlays.
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