[PATCH 1/2] common: source base fs specific common file

[Zorro Lang <zlang@kernel.org>]

When tests overlayfs, sometimes we need the underlying fs specific
helpers, e.g. common/rc has:
  _filesystem_timestamp_range $OVL_BASE_TEST_DEV $OVL_BASE_FSTYP

So when we source common/overlay, better to source OVL_BASE_FSTYP
too.

Signed-off-by: Zorro Lang <zlang@kernel.org>
---
 common/config  | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++
 common/overlay |  4 ++++
 common/rc      | 49 +----------------------------------------
 3 files changed, 64 insertions(+), 48 deletions(-)

diff --git a/common/config b/common/config
index c6428f90..558f148b 100644
--- a/common/config
+++ b/common/config
@@ -481,6 +481,65 @@ _fsck_opts()
 	esac
 }
 
+# check necessary running dependences then source sepcific fs helpers
+_source_specific_fs()
+{
+	local fs=$1
+
+	if [ -z "$fs" ];then
+		fs=$FSTYP
+	fi
+
+	case "$fs" in
+	xfs)
+		[ "$XFS_LOGPRINT_PROG" = "" ] && _fatal "xfs_logprint not found"
+		[ "$XFS_REPAIR_PROG" = "" ] && _fatal "xfs_repair not found"
+		[ "$XFS_DB_PROG" = "" ] && _fatal "xfs_db not found"
+		[ "$MKFS_XFS_PROG" = "" ] && _fatal "mkfs_xfs not found"
+		[ "$XFS_INFO_PROG" = "" ] && _fatal "xfs_info not found"
+
+		. ./common/xfs
+		;;
+	udf)
+		[ "$MKFS_UDF_PROG" = "" ] && _fatal "mkfs_udf/mkudffs not found"
+		;;
+	btrfs)
+		[ "$MKFS_BTRFS_PROG" = "" ] && _fatal "mkfs.btrfs not found"
+
+		. ./common/btrfs
+		;;
+	ext4)
+		[ "$MKFS_EXT4_PROG" = "" ] && _fatal "mkfs.ext4 not found"
+		;;
+	f2fs)
+		[ "$MKFS_F2FS_PROG" = "" ] && _fatal "mkfs.f2fs not found"
+		;;
+	nfs)
+		. ./common/nfs
+		;;
+	cifs)
+		;;
+	9p)
+		;;
+	ceph)
+		. ./common/ceph
+		;;
+	glusterfs)
+		;;
+	overlay)
+		. ./common/overlay
+		;;
+	reiser4)
+		[ "$MKFS_REISER4_PROG" = "" ] && _fatal "mkfs.reiser4 not found"
+		;;
+	pvfs2)
+		;;
+	ubifs)
+		[ "$UBIUPDATEVOL_PROG" = "" ] && _fatal "ubiupdatevol not found"
+		;;
+	esac
+}
+
 known_hosts()
 {
 	[ "$HOST_CONFIG_DIR" ] || HOST_CONFIG_DIR=`pwd`/configs
diff --git a/common/overlay b/common/overlay
index c4e7ee58..e35419d0 100644
--- a/common/overlay
+++ b/common/overlay
@@ -12,6 +12,10 @@ export OVL_XATTR_NLINK="trusted.overlay.nlink"
 export OVL_XATTR_UPPER="trusted.overlay.upper"
 export OVL_XATTR_METACOPY="trusted.overlay.metacopy"
 
+if [ -n "$OVL_BASE_FSTYP" ];then
+	_source_specific_fs $OVL_BASE_FSTYP
+fi
+
 # helper function to do the actual overlayfs mount operation
 _overlay_mount_dirs()
 {
diff --git a/common/rc b/common/rc
index 70a15f9c..2f31ca46 100644
--- a/common/rc
+++ b/common/rc
@@ -96,54 +96,7 @@ _log_err()
 umask 022
 
 # check for correct setup and source the $FSTYP specific functions now
-case "$FSTYP" in
-    xfs)
-	 [ "$XFS_LOGPRINT_PROG" = "" ] && _fatal "xfs_logprint not found"
-	 [ "$XFS_REPAIR_PROG" = "" ] && _fatal "xfs_repair not found"
-	 [ "$XFS_DB_PROG" = "" ] && _fatal "xfs_db not found"
-	 [ "$MKFS_XFS_PROG" = "" ] && _fatal "mkfs_xfs not found"
-	 [ "$XFS_INFO_PROG" = "" ] && _fatal "xfs_info not found"
-
-	 . ./common/xfs
-	 ;;
-    udf)
-	 [ "$MKFS_UDF_PROG" = "" ] && _fatal "mkfs_udf/mkudffs not found"
-	 ;;
-    btrfs)
-	 [ "$MKFS_BTRFS_PROG" = "" ] && _fatal "mkfs.btrfs not found"
-
-	 . ./common/btrfs
-	 ;;
-    ext4)
-	 [ "$MKFS_EXT4_PROG" = "" ] && _fatal "mkfs.ext4 not found"
-	 ;;
-    f2fs)
-	 [ "$MKFS_F2FS_PROG" = "" ] && _fatal "mkfs.f2fs not found"
-	 ;;
-    nfs)
-	 . ./common/nfs
-	 ;;
-    cifs)
-	 ;;
-    9p)
-	 ;;
-    ceph)
-	 . ./common/ceph
-	 ;;
-    glusterfs)
-	 ;;
-    overlay)
-	 . ./common/overlay
-	 ;;
-    reiser4)
-	 [ "$MKFS_REISER4_PROG" = "" ] && _fatal "mkfs.reiser4 not found"
-	 ;;
-    pvfs2)
-	;;
-    ubifs)
-	[ "$UBIUPDATEVOL_PROG" = "" ] && _fatal "ubiupdatevol not found"
-	;;
-esac
+_source_specific_fs $FSTYP
 
 if [ ! -z "$REPORT_LIST" ]; then
 	. ./common/report
-- 
2.31.1