Add filesystem check helper for the upcoming fsck.overlay utility.
This helper invoke fsck.overlay to check and optionally repair
underlying directories of overlay filesystem.
Signed-off-by: zhangyi (F) <yi.zhang@xxxxxxxxxx>
Reviewed-by: Amir Goldstein <amir73il@xxxxxxxxx>
---
common/config | 1 +
common/overlay | 14 ++++++++++++++
2 files changed, 15 insertions(+)
diff --git a/common/config b/common/config
index 5f40413..71115bd 100644
--- a/common/config
+++ b/common/config
@@ -236,6 +236,7 @@ case "$HOSTOS" in
export MKFS_REISER4_PROG="`set_prog_path mkfs.reiser4`"
export E2FSCK_PROG="`set_prog_path e2fsck`"
export TUNE2FS_PROG="`set_prog_path tune2fs`"
+ export FSCK_OVERLAY_PROG="`set_prog_path fsck.overlay`"
;;
esac
diff --git a/common/overlay b/common/overlay
index 1da4ab1..d741a7e 100644
--- a/common/overlay
+++ b/common/overlay
@@ -151,3 +151,17 @@ _require_scratch_overlay_feature()
_notrun "${FSTYP} feature '${feature}' cannot be enabled on ${SCRATCH_DEV}"
_scratch_unmount
}
+
+# Helper function to check underlying dirs of overlay filesystem
+_overlay_fsck_dirs()
+{
+ local lowerdir=$1
+ local upperdir=$2
+ local workdir=$3
+ shift 3
+
+ [[ ! -x "$FSCK_OVERLAY_PROG" ]] && return 0
+
+ $FSCK_OVERLAY_PROG -o lowerdir=$lowerdir -o upperdir=$upperdir \
+ -o workdir=$workdir $*
+}
--
2.5.0
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