Constant d_ino for hardlinks is possible only when "index" config
feature/mount option is enabled.
Signed-off-by: Chandan Rajendra <chandan@xxxxxxxxxxxxxxxxxx>
---
tests/overlay/018 | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/tests/overlay/018 b/tests/overlay/018
index a4f67d1..6e026c1 100755
--- a/tests/overlay/018
+++ b/tests/overlay/018
@@ -50,6 +50,7 @@ _supported_fs overlay
_supported_os Linux
_require_scratch
_require_scratch_feature index
+_require_test_program "t_dir_type"
rm -f $seqres.full
@@ -65,14 +66,15 @@ ln $lowerdir/foo $lowerdir/bar
# Record inode numbers in format <ino> <nlink>
function record_ino_nlink()
{
- ls -li $FILES | awk '{ print $1, $3 }' > $1
+ ls -li $FILES | awk '{ print $1, $3, $10}' > $1
}
# Check inode numbers match recorded inode numbers
function check_ino_nlink()
{
- before=$1
- after=$2
+ dir=$1
+ before=$2
+ after=$3
record_ino_nlink $after
@@ -80,6 +82,13 @@ function check_ino_nlink()
# Compare before..after - expect silence
# We use diff -u so out.bad will tell us which stage failed
diff -u $before $after
+
+ # Test constant readdir(3)/getdents(2) d_ino -
+ # Expect to find file by inode number
+ cat $before | while read ino nlink f; do
+ $here/src/t_dir_type $dir $ino | grep -q $(basename $f) || \
+ echo "$(basename $f) not found by ino $ino (from $before)"
+ done
}
# Enable overlay index feature to prevent breaking hardlinks on copy up
@@ -104,14 +113,14 @@ echo "one" >> $bar
echo "== After write one =="
cat $FILES
-check_ino_nlink $tmp.before $tmp.after_one
+check_ino_nlink $SCRATCH_MNT $tmp.before $tmp.after_one
# Verify that the hardlinks survive a mount cycle
_scratch_cycle_mount index=on
echo "== After mount cycle =="
cat $FILES
-check_ino_nlink $tmp.after_one $tmp.after_cycle
+check_ino_nlink $SCRATCH_MNT $tmp.after_one $tmp.after_cycle
# Drop caches to get the copied up hardlink out of cache
echo 3 > /proc/sys/vm/drop_caches
@@ -121,7 +130,7 @@ echo "two" >> $foo
echo "== After write two =="
cat $FILES
-check_ino_nlink $tmp.after_one $tmp.after_two
+check_ino_nlink $SCRATCH_MNT $tmp.after_one $tmp.after_two
status=0
exit
--
2.9.5
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