Hook filesystem check helper to _check_test_fs and _check_scratch_fs for
constants underlying dirs of overlay filesystem, and introduce scratch
check helpers for optionally lower/upper/work dirs. These helpers works
only if fsck.overlay exists.
[ _check_test_fs/_check_scratch_fs part picked from Amir's patch, thanks ]
Signed-off-by: zhangyi (F) <yi.zhang@xxxxxxxxxx>
---
common/overlay | 120 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
common/rc | 4 +-
2 files changed, 122 insertions(+), 2 deletions(-)
diff --git a/common/overlay b/common/overlay
index c19dabc..524976f 100644
--- a/common/overlay
+++ b/common/overlay
@@ -152,6 +152,14 @@ _require_scratch_overlay_feature()
_scratch_unmount
}
+# Require the same scratch device as _require_scratch, but do not check
+# the constants OVL_LOWER/OVL_UPPER/OVL_WORK dirs, should use together
+# with optionally lower/upper/work dirs and do check explicitly after test.
+_require_overlay_scratch_dirs()
+{
+ _require_scratch_nocheck
+}
+
# Helper function to check underlying dirs of overlay filesystem
_overlay_fsck_dirs()
{
@@ -165,3 +173,115 @@ _overlay_fsck_dirs()
$FSCK_OVERLAY_PROG -o lowerdir=$lowerdir -o upperdir=$upperdir \
-o workdir=$workdir $options
}
+
+_overlay_check_dirs()
+{
+ local lowerdir=$1
+ local upperdir=$2
+ local workdir=$3
+ local err=0
+
+ _overlay_fsck_dirs $* $FSCK_OPTIONS >>$tmp.fsck 2>&1
+ if [ $? -ne 0 ]; then
+ _log_err "_overlay_check_fs: overlayfs on $lowerdir,$upperdir,$workdir is inconsistent"
+
+ echo "*** fsck.overlay output ***" >>$seqres.full
+ cat $tmp.fsck >>$seqres.full
+ echo "*** end fsck.overlay output" >>$seqres.full
+
+ echo "*** mount output ***" >>$seqres.full
+ _mount >>$seqres.full
+ echo "*** end mount output" >>$seqres.full
+
+ err=1
+ fi
+ rm -f $tmp.fsck
+
+ return $err
+}
+
+# Check the same mnt/dev of _check_overlay_scratch_fs, but check optionally
+# lower/upper/work dirs of overlay filesystem, should use together with
+# _require_overlay_scratch_dirs
+_overlay_check_scratch_dirs()
+{
+ local lowerdir=$1
+ local upperdir=$2
+ local workdir=$3
+
+ # Need to umount overlay for scratch dir check
+ local ovl_mounted=`_is_mounted $SCRATCH_MNT`
+ [ -z "$ovl_mounted" ] || $UMOUNT_PROG $SCRATCH_MNT
+
+ _overlay_check_dirs $lowerdir $upperdir $workdir
+ local ret=$?
+
+ if [ $ret -eq 0 -a -n "$ovl_mounted" ]; then
+ # overlay was mounted, remount besides extra mount options
+ _overlay_scratch_mount_dirs $lowerdir $upperdir $workdir
+ ret=$?
+ fi
+
+ return $ret
+}
+
+_overlay_check_fs()
+{
+ local ovl_mnt=$1
+ local base_dev=$4
+ local base_mnt=$5
+ shift 1
+
+ [ "$FSTYP" = overlay ] || return 0
+
+ # Base fs needs to be mounted to check overlay dirs
+ local base_mounted=""
+ [ -z "$base_dev" ] || \
+ base_mounted=`_is_mounted $base_dev $OVL_BASE_FSTYP`
+
+ if [ -z "$base_mounted" ]; then
+ _overlay_base_mount $*
+ else
+ # Need to umount overlay for dir check
+ local ovl_mounted=`_is_mounted $ovl_mnt`
+ [ -z "$ovl_mounted" ] || $UMOUNT_PROG $ovl_mnt
+ fi
+
+ _overlay_check_dirs $base_mnt/$OVL_LOWER $base_mnt/$OVL_UPPER \
+ $base_mnt/$OVL_WORK
+ local ret=$?
+
+ if [ -z "$base_mounted" ]; then
+ _overlay_base_unmount "$base_dev" "$base_mnt"
+ elif [ $ret -eq 0 -a -n "$ovl_mounted" ]; then
+ # overlay was mounted, remount besides extra mount options
+ _overlay_mount $base_mnt $ovl_mnt
+ ret=$?
+ fi
+
+ if [ $ret != 0 ]; then
+ status=1
+ if [ "$iam" != "check" ]; then
+ exit 1
+ fi
+ return 1
+ fi
+
+ return 0
+}
+
+_check_overlay_test_fs()
+{
+ _overlay_check_fs "$TEST_DIR" \
+ OVL_BASE_TEST_DEV OVL_BASE_TEST_DIR \
+ "$OVL_BASE_TEST_DEV" "$OVL_BASE_TEST_DIR" \
+ $TEST_FS_MOUNT_OPTS $SELINUX_MOUNT_OPTIONS
+}
+
+_check_overlay_scratch_fs()
+{
+ _overlay_check_fs "$SCRATCH_MNT" \
+ OVL_BASE_SCRATCH_DEV OVL_BASE_SCRATCH_MNT \
+ "$OVL_BASE_SCRATCH_DEV" "$OVL_BASE_SCRATCH_MNT" \
+ $OVL_BASE_MOUNT_OPTIONS $SELINUX_MOUNT_OPTIONS
+}
diff --git a/common/rc b/common/rc
index ceb5d44..5dfed1e 100644
--- a/common/rc
+++ b/common/rc
@@ -2585,7 +2585,7 @@ _check_test_fs()
# no way to check consistency for GlusterFS
;;
overlay)
- # no way to check consistency for overlay
+ _check_overlay_test_fs
;;
pvfs2)
;;
@@ -2643,7 +2643,7 @@ _check_scratch_fs()
# no way to check consistency for GlusterFS
;;
overlay)
- # no way to check consistency for overlay
+ _check_overlay_scratch_fs
;;
pvfs2)
;;
--
2.5.0
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