mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
overlay: move _overlay helpers to common/overlay
Signed-off-by: Amir Goldstein <amir73il@gmail.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Amir Goldstein
committed by
Eryu Guan
Eryu Guan
parent
8df8ad0cd2
commit
766e711f84
+160
@@ -0,0 +1,160 @@
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#
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# overlayfs specific common functions.
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#
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# helper function to do the actual overlayfs mount operation
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_overlay_mount_dirs()
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{
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local lowerdir=$1
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local upperdir=$2
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local workdir=$3
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shift 3
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$MOUNT_PROG -t overlay -o lowerdir=$lowerdir -o upperdir=$upperdir \
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-o workdir=$workdir `_common_dev_mount_options $*`
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}
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# Mount with same options/mnt/dev of scratch mount, but optionally
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# with different lower/upper/work dirs
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_overlay_scratch_mount_dirs()
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{
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local lowerdir=$1
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local upperdir=$2
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local workdir=$3
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shift 3
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_overlay_mount_dirs $lowerdir $upperdir $workdir \
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$* $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT
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}
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_overlay_mkdirs()
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{
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local dir=$1
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mkdir -p $dir/$OVL_UPPER
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mkdir -p $dir/$OVL_LOWER
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mkdir -p $dir/$OVL_WORK
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mkdir -p $dir/$OVL_MNT
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}
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# Given a base fs dir, set up overlay directories and mount on the given mnt.
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# The dir is used as the mount device so it can be seen from df or mount
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_overlay_mount()
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{
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local dir=$1
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local mnt=$2
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shift 2
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_supports_filetype $dir || _notrun "upper fs needs to support d_type"
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_overlay_mkdirs $dir
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_overlay_mount_dirs $dir/$OVL_LOWER $dir/$OVL_UPPER $dir/$OVL_WORK \
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$* $dir $mnt
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}
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_overlay_base_test_mount()
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{
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if [ -z "$OVL_BASE_TEST_DEV" -o -z "$OVL_BASE_TEST_DIR" ] || \
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_check_mounted_on OVL_BASE_TEST_DEV $OVL_BASE_TEST_DEV \
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OVL_BASE_TEST_DIR $OVL_BASE_TEST_DIR
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then
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# no base fs or already mounted
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return 0
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elif [ $? -ne 1 ]
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then
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# base fs mounted but not on mount point
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return 1
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fi
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_mount $TEST_FS_MOUNT_OPTS \
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$SELINUX_MOUNT_OPTIONS \
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$OVL_BASE_TEST_DEV $OVL_BASE_TEST_DIR
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}
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_overlay_test_mount()
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{
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_overlay_base_test_mount && \
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_overlay_mount $OVL_BASE_TEST_DIR $TEST_DIR $*
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}
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_overlay_base_scratch_mount()
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{
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if [ -z "$OVL_BASE_SCRATCH_DEV" -o -z "$OVL_BASE_SCRATCH_MNT" ] || \
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_check_mounted_on OVL_BASE_SCRATCH_DEV $OVL_BASE_SCRATCH_DEV \
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OVL_BASE_SCRATCH_MNT $OVL_BASE_SCRATCH_MNT
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then
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# no base fs or already mounted
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return 0
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elif [ $? -ne 1 ]
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then
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# base fs mounted but not on mount point
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return 1
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fi
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_mount $OVL_BASE_MOUNT_OPTIONS \
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$SELINUX_MOUNT_OPTIONS \
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$OVL_BASE_SCRATCH_DEV $OVL_BASE_SCRATCH_MNT
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}
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_overlay_base_scratch_unmount()
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{
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[ -n "$OVL_BASE_SCRATCH_DEV" -a -n "$OVL_BASE_SCRATCH_MNT" ] || return 0
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$UMOUNT_PROG $OVL_BASE_SCRATCH_MNT
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}
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_overlay_scratch_mount()
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{
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_overlay_base_scratch_mount && \
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_overlay_mount $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT $*
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}
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_overlay_base_test_unmount()
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{
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[ -n "$OVL_BASE_TEST_DEV" -a -n "$OVL_BASE_TEST_DIR" ] || return 0
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$UMOUNT_PROG $OVL_BASE_TEST_DIR
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}
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_overlay_test_unmount()
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{
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$UMOUNT_PROG $TEST_DIR
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_overlay_base_test_unmount
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}
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_overlay_scratch_unmount()
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{
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$UMOUNT_PROG $SCRATCH_MNT
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_overlay_base_scratch_unmount
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}
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# Require a specific overlayfs feature
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_require_scratch_overlay_feature()
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{
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local feature=$1
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# overalyfs features (e.g. redirect_dir, index) are
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# configurable from Kconfig (the build default), by module
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# parameter (the system default) and per mount by mount
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# option ${feature}=[on|off].
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#
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# If the module parameter does not exist then there is no
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# point in checking the mount option.
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local default=`_get_fs_module_param ${feature}`
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[ "$default" = Y ] || [ "$default" = N ] || \
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_notrun "feature '${feature}' not supported by ${FSTYP}"
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_scratch_mkfs > /dev/null 2>&1
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_scratch_mount -o ${feature}=on || \
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_notrun "${FSTYP} feature '${feature}' cannot be enabled on ${SCRATCH_DEV}"
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# Check options to be sure. For example, Overlayfs will fallback to
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# index=off if underlying fs does not support file handles.
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# Overlayfs only displays mount option if it differs from the default.
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# Overlayfs may enable the feature, but fallback to read-only mount.
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((( [ "$default" = N ] && _fs_options $SCRATCH_DEV | grep -q "${feature}=on" ) || \
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( [ "$default" = Y ] && ! _fs_options $SCRATCH_DEV | grep -q "${feature}=off" )) && \
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touch $SCRATCH_MNT/foo 2>/dev/null ) || \
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_notrun "${FSTYP} feature '${feature}' cannot be enabled on ${SCRATCH_DEV}"
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_scratch_unmount
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}
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@@ -171,6 +171,7 @@ case "$FSTYP" in
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glusterfs)
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;;
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overlay)
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. ./common/overlay
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;;
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reiser4)
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[ "$MKFS_REISER4_PROG" = "" ] && _fatal "mkfs.reiser4 not found"
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@@ -333,133 +334,6 @@ _supports_filetype()
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esac
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}
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# helper function to do the actual overlayfs mount operation
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_overlay_mount_dirs()
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{
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local lowerdir=$1
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local upperdir=$2
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local workdir=$3
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shift 3
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$MOUNT_PROG -t overlay -o lowerdir=$lowerdir -o upperdir=$upperdir \
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-o workdir=$workdir `_common_dev_mount_options $*`
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}
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# Mount with same options/mnt/dev of scratch mount, but optionally
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# with different lower/upper/work dirs
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_overlay_scratch_mount_dirs()
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{
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local lowerdir=$1
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local upperdir=$2
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local workdir=$3
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shift 3
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_overlay_mount_dirs $lowerdir $upperdir $workdir \
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$* $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT
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}
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_overlay_mkdirs()
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{
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local dir=$1
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mkdir -p $dir/$OVL_UPPER
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mkdir -p $dir/$OVL_LOWER
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mkdir -p $dir/$OVL_WORK
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mkdir -p $dir/$OVL_MNT
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}
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# Given a base fs dir, set up overlay directories and mount on the given mnt.
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# The dir is used as the mount device so it can be seen from df or mount
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_overlay_mount()
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{
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local dir=$1
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local mnt=$2
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shift 2
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_supports_filetype $dir || _notrun "upper fs needs to support d_type"
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_overlay_mkdirs $dir
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_overlay_mount_dirs $dir/$OVL_LOWER $dir/$OVL_UPPER $dir/$OVL_WORK \
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$* $dir $mnt
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}
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_overlay_base_test_mount()
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{
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if [ -z "$OVL_BASE_TEST_DEV" -o -z "$OVL_BASE_TEST_DIR" ] || \
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_check_mounted_on OVL_BASE_TEST_DEV $OVL_BASE_TEST_DEV \
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OVL_BASE_TEST_DIR $OVL_BASE_TEST_DIR
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then
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# no base fs or already mounted
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return 0
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elif [ $? -ne 1 ]
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then
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# base fs mounted but not on mount point
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return 1
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fi
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_mount $TEST_FS_MOUNT_OPTS \
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$SELINUX_MOUNT_OPTIONS \
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$OVL_BASE_TEST_DEV $OVL_BASE_TEST_DIR
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}
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_overlay_test_mount()
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{
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_overlay_base_test_mount && \
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_overlay_mount $OVL_BASE_TEST_DIR $TEST_DIR $*
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}
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_overlay_base_scratch_mount()
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{
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if [ -z "$OVL_BASE_SCRATCH_DEV" -o -z "$OVL_BASE_SCRATCH_MNT" ] || \
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_check_mounted_on OVL_BASE_SCRATCH_DEV $OVL_BASE_SCRATCH_DEV \
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OVL_BASE_SCRATCH_MNT $OVL_BASE_SCRATCH_MNT
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then
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# no base fs or already mounted
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return 0
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elif [ $? -ne 1 ]
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then
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# base fs mounted but not on mount point
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return 1
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fi
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_mount $OVL_BASE_MOUNT_OPTIONS \
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$SELINUX_MOUNT_OPTIONS \
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$OVL_BASE_SCRATCH_DEV $OVL_BASE_SCRATCH_MNT
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}
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_overlay_base_scratch_unmount()
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{
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[ -n "$OVL_BASE_SCRATCH_DEV" -a -n "$OVL_BASE_SCRATCH_MNT" ] || return 0
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$UMOUNT_PROG $OVL_BASE_SCRATCH_MNT
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}
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_overlay_scratch_mount()
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{
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_overlay_base_scratch_mount && \
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_overlay_mount $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT $*
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}
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_overlay_base_test_unmount()
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{
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[ -n "$OVL_BASE_TEST_DEV" -a -n "$OVL_BASE_TEST_DIR" ] || return 0
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$UMOUNT_PROG $OVL_BASE_TEST_DIR
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}
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_overlay_test_unmount()
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{
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$UMOUNT_PROG $TEST_DIR
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_overlay_base_test_unmount
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}
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_overlay_scratch_unmount()
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{
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$UMOUNT_PROG $SCRATCH_MNT
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_overlay_base_scratch_unmount
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}
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_scratch_mount()
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{
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if [ "$FSTYP" == "overlay" ]; then
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@@ -3684,29 +3558,7 @@ _require_scratch_feature()
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case "$FSTYP" in
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overlay)
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# overalyfs features (e.g. redirect_dir, index) are
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# configurable from Kconfig (the build default), by module
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# parameter (the system default) and per mount by mount
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# option ${feature}=[on|off].
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#
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# If the module parameter does not exist then there is no
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# point in checking the mount option.
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local default=`_get_fs_module_param ${feature}`
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[ "$default" = Y ] || [ "$default" = N ] || \
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_notrun "feature '${feature}' not supported by ${FSTYP}"
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_scratch_mkfs > /dev/null 2>&1
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_scratch_mount -o ${feature}=on || \
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_notrun "${FSTYP} feature '${feature}' cannot be enabled on ${SCRATCH_DEV}"
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# Check options to be sure. For example, Overlayfs will fallback to
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# index=off if underlying fs does not support file handles.
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# Overlayfs only displays mount option if it differs from the default.
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# Overlayfs may enable the feature, but fallback to read-only mount.
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((( [ "$default" = N ] && _fs_options $SCRATCH_DEV | grep -q "${feature}=on" ) || \
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( [ "$default" = Y ] && ! _fs_options $SCRATCH_DEV | grep -q "${feature}=off" )) && \
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touch $SCRATCH_MNT/foo 2>/dev/null ) || \
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_notrun "${FSTYP} feature '${feature}' cannot be enabled on ${SCRATCH_DEV}"
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_scratch_unmount
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_require_scratch_overlay_feature ${feature}
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;;
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*)
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_fail "Test for feature '${feature}' of ${FSTYP} is not implemented"
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