dd7c9be330
Add a test for the renameat2 RENAME_EXCHANGE support in vfat, but split it in a tool that just does the rename exchange and a script that is run by the kselftests framework on `make TARGETS="filesystems/fat" kselftest`. That way the script can be easily extended to test other file operations. The script creates a 1 MiB disk image, that is then formated with a vfat filesystem and mounted using a loop device. That way all file operations are done on an ephemeral filesystem. Link: https://lkml.kernel.org/r/20220610075721.1182745-5-javierm@redhat.com Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Alexander Larsson <alexl@redhat.com> Cc: Christian Kellner <ckellner@redhat.com> Cc: Chung-Chiang Cheng <cccheng@synology.com> Cc: Colin Walters <walters@verbum.org> Cc: Lennart Poettering <lennart@poettering.net> Cc: Peter Jones <pjones@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
82 lines
2 KiB
Bash
82 lines
2 KiB
Bash
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Run filesystem operations tests on an 1 MiB disk image that is formatted with
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# a vfat filesystem and mounted in a temporary directory using a loop device.
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#
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# Copyright 2022 Red Hat Inc.
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# Author: Javier Martinez Canillas <javierm@redhat.com>
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set -e
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set -u
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set -o pipefail
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BASE_DIR="$(dirname $0)"
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TMP_DIR="$(mktemp -d /tmp/fat_tests_tmp.XXXX)"
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IMG_PATH="${TMP_DIR}/fat.img"
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MNT_PATH="${TMP_DIR}/mnt"
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cleanup()
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{
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mountpoint -q "${MNT_PATH}" && unmount_image
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rm -rf "${TMP_DIR}"
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}
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trap cleanup SIGINT SIGTERM EXIT
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create_loopback()
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{
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touch "${IMG_PATH}"
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chattr +C "${IMG_PATH}" >/dev/null 2>&1 || true
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truncate -s 1M "${IMG_PATH}"
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mkfs.vfat "${IMG_PATH}" >/dev/null 2>&1
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}
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mount_image()
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{
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mkdir -p "${MNT_PATH}"
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sudo mount -o loop "${IMG_PATH}" "${MNT_PATH}"
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}
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rename_exchange_test()
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{
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local rename_exchange="${BASE_DIR}/rename_exchange"
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local old_path="${MNT_PATH}/old_file"
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local new_path="${MNT_PATH}/new_file"
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echo old | sudo tee "${old_path}" >/dev/null 2>&1
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echo new | sudo tee "${new_path}" >/dev/null 2>&1
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sudo "${rename_exchange}" "${old_path}" "${new_path}" >/dev/null 2>&1
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sudo sync -f "${MNT_PATH}"
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grep new "${old_path}" >/dev/null 2>&1
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grep old "${new_path}" >/dev/null 2>&1
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}
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rename_exchange_subdir_test()
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{
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local rename_exchange="${BASE_DIR}/rename_exchange"
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local dir_path="${MNT_PATH}/subdir"
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local old_path="${MNT_PATH}/old_file"
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local new_path="${dir_path}/new_file"
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sudo mkdir -p "${dir_path}"
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echo old | sudo tee "${old_path}" >/dev/null 2>&1
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echo new | sudo tee "${new_path}" >/dev/null 2>&1
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sudo "${rename_exchange}" "${old_path}" "${new_path}" >/dev/null 2>&1
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sudo sync -f "${MNT_PATH}"
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grep new "${old_path}" >/dev/null 2>&1
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grep old "${new_path}" >/dev/null 2>&1
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}
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unmount_image()
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{
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sudo umount "${MNT_PATH}" &> /dev/null
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}
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create_loopback
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mount_image
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rename_exchange_test
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rename_exchange_subdir_test
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unmount_image
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exit 0
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