[PATCH v2 4/4] overlay/04{1,3,4}: enable xino feature

[Amir Goldstein <amir73il@gmail.com>]

These tests check for constant inode number on copy up with nonsamefs
layer configuration. This problem is fixes only when opting-in with the
xino=on mount option, so let the tests enable the mount option on new
kernels and notrun on old kernels.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
 tests/overlay/041 | 16 ++++++++++++----
 tests/overlay/043 | 16 ++++++++++++----
 tests/overlay/044 | 16 ++++++++++++----
 3 files changed, 36 insertions(+), 12 deletions(-)

diff --git a/tests/overlay/041 b/tests/overlay/041
index f3be746..78f8179 100755
--- a/tests/overlay/041
+++ b/tests/overlay/041
@@ -70,7 +70,15 @@ _scratch_mkfs
 upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
 workdir=$OVL_BASE_SCRATCH_MNT/$OVL_WORK
 
-_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir
+# Enabling xino in this test requires that base filesystem inode numbers will
+# not use bit 63 in inode number of the test files, because bit 63 is used by
+# overlayfs to indicate the layer. Let's just assume that this is true for all
+# tested filesystems and if we are wrong, the test may fail.
+_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o xino=on ||
+	_notrun "mount overlay with xino failed"
+# Not using _check_scratch_fs_option because it uses grep -w
+_fs_options $SCRATCH_DEV | grep -q "xino=on" || \
+	_notrun "failed to enable xino"
 
 test_dir=$SCRATCH_MNT/test_dir/
 
@@ -171,7 +179,7 @@ subdir_d=$($here/src/t_dir_type $pure_lower_dir $pure_lower_subdir_st_ino)
 $UMOUNT_PROG $SCRATCH_MNT
 
 # check overlayfs
-_overlay_check_scratch_dirs $lowerdir $upperdir $workdir
+_overlay_check_scratch_dirs $lowerdir $upperdir $workdir -o xino=on
 
 # Verify pure lower residing in dir which has another lower layer
 middir=$OVL_BASE_TEST_DIR/$seq-ovl-mid
@@ -186,7 +194,7 @@ mkdir -p $lowerdir/test_dir/pure_lower_dir/subdir
 
 _scratch_mkfs
 
-_overlay_scratch_mount_dirs $middir:$lowerdir $upperdir $workdir
+_overlay_scratch_mount_dirs $middir:$lowerdir $upperdir $workdir -o xino=on
 
 # Copy up test_dir
 touch $test_dir/test_file
@@ -209,7 +217,7 @@ subdir_d=$($here/src/t_dir_type $pure_lower_dir $pure_lower_subdir_st_ino)
 	echo "Pure lower in dir which has another lower layer: Invalid d_ino reported for subdir"
 
 # check overlayfs
-_overlay_check_scratch_dirs "$middir:$lowerdir" $upperdir $workdir
+_overlay_check_scratch_dirs "$middir:$lowerdir" $upperdir $workdir -o xino=on
 
 echo "Silence is golden"
 status=0
diff --git a/tests/overlay/043 b/tests/overlay/043
index f70ee7f..c865b51 100755
--- a/tests/overlay/043
+++ b/tests/overlay/043
@@ -85,8 +85,16 @@ _scratch_mkfs >>$seqres.full 2>&1
 upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
 workdir=$OVL_BASE_SCRATCH_MNT/$OVL_WORK
 
-# Enable redirect_dir for renaming a merge directory
-_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o redirect_dir=on
+# Enable redirect_dir for renaming a merge directory.
+# Enabling xino in this test requires that base filesystem inode numbers will
+# not use bit 63 in inode number of the test files, because bit 63 is used by
+# overlayfs to indicate the layer. Let's just assume that this is true for all
+# tested filesystems and if we are wrong, the test may fail.
+_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o redirect_dir=on,xino=on || \
+	_notrun "mount overlay with xino failed"
+# Not using _check_scratch_fs_option because it uses grep -w
+_fs_options $SCRATCH_DEV | grep -q "xino=on" || \
+	_notrun "failed to enable xino"
 
 FILES="dir file symlink chrdev blkdev fifo socket"
 
@@ -153,13 +161,13 @@ check_inode_numbers $testdir $tmp.after_copyup $tmp.after_move
 
 # Verify that the inode numbers survive a mount cycle
 $UMOUNT_PROG $SCRATCH_MNT
-_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o redirect_dir=on
+_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o redirect_dir=on,xino=on
 
 # Compare inode numbers before/after mount cycle
 check_inode_numbers $testdir $tmp.after_move $tmp.after_cycle
 
 # check overlayfs
-_overlay_check_scratch_dirs $lowerdir $upperdir $workdir -o redirect_dir=on
+_overlay_check_scratch_dirs $lowerdir $upperdir $workdir -o redirect_dir=on,xino=on
 
 echo "Silence is golden"
 status=0
diff --git a/tests/overlay/044 b/tests/overlay/044
index 2ab3035..bcc30ac 100755
--- a/tests/overlay/044
+++ b/tests/overlay/044
@@ -99,8 +99,16 @@ _scratch_mkfs >>$seqres.full 2>&1
 upperdir=$OVL_BASE_SCRATCH_MNT/$OVL_UPPER
 workdir=$OVL_BASE_SCRATCH_MNT/$OVL_WORK
 
-# Enable overlay index feature to prevent breaking hardlinks on copy up
-_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o index=on
+# Enable overlay index feature to prevent breaking hardlinks on copy up.
+# Enabling xino in this test requires that base filesystem inode numbers will
+# not use bit 63 in inode number of the test files, because bit 63 is used by
+# overlayfs to indicate the layer. Let's just assume that this is true for all
+# tested filesystems and if we are wrong, the test may fail.
+_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o index=on,xino=on || \
+	_notrun "mount overlay with xino failed"
+# Not using _check_scratch_fs_option because it uses grep -w
+_fs_options $SCRATCH_DEV | grep -q "xino=on" || \
+	_notrun "failed to enable xino"
 
 rm -f $tmp.*
 
@@ -124,8 +132,8 @@ check_ino_nlink $SCRATCH_MNT $tmp.before $tmp.after_one
 
 # Verify that the hardlinks survive a mount cycle
 $UMOUNT_PROG $SCRATCH_MNT
-_overlay_check_scratch_dirs $lowerdir $upperdir $workdir -o index=on
-_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o index=on
+_overlay_check_scratch_dirs $lowerdir $upperdir $workdir -o index=on,xino=on
+_overlay_scratch_mount_dirs $lowerdir $upperdir $workdir -o index=on,xino=on
 
 echo "== After mount cycle =="
 cat $FILES
-- 
2.7.4