lsfd: test: Adapt test cases for pidfs

On Linux >= 6.9, pidfds are from pidfs instead of anonymous inode.
Thus:

STTYPE is REG on Linux >= 6.9, UNKN on Linux < 6.9.

KNAME is pidfd:[inode number] on Linux >= 6.9, anon_inode:[pidfd] on
Linux < 6.9.

And ainode_class test cannot work on Linux >= 6.9, just skip this sub
test if STTYPE is REG.

Signed-off-by: Xi Ruoyao <xry111@xry111.site>

7 files changed, 29 insertions, 3 deletions

diff --git a/tests/expected/lsfd/column-name-pidfd b/tests/expected/lsfd/column-name-pidfd
index 10e3c5e7f5..68787d69fc 100644
--- a/tests/expected/lsfd/column-name-pidfd
+++ b/tests/expected/lsfd/column-name-pidfd
@@ -1,2 +1,2 @@
-3 anon_inode:[pidfd] pid=1 comm= nspid=1
+3 [KNAME] pid=1 comm= nspid=1
 pidfd:ASSOC,KNAME,NAME: 0
diff --git a/tests/expected/lsfd/column-type-pidfd b/tests/expected/lsfd/column-type-pidfd
index 6c9a9632ea..a4379807d4 100644
--- a/tests/expected/lsfd/column-type-pidfd
+++ b/tests/expected/lsfd/column-type-pidfd
@@ -1,2 +1,2 @@
-3 UNKN pidfd
+3 [STTYPE] pidfd
 pidfd:ASSOC,STTYPE,TYPE: 0
diff --git a/tests/expected/lsfd/mkfds-pidfd b/tests/expected/lsfd/mkfds-pidfd
index 9484699204..bce4dd42a2 100644
--- a/tests/expected/lsfd/mkfds-pidfd
+++ b/tests/expected/lsfd/mkfds-pidfd
@@ -1,2 +1,2 @@
-3 UNKN anon_inodefs pid=1 comm=systemd nspid=1 systemd     1
+3 [STTYPE] [SOURCE] pid=1 comm=systemd nspid=1 systemd     1
 ASSOC,STTYPE,SOURCE,NAME,PIDFD.COMM,PIDFD.PID: 0
diff --git a/tests/ts/lsfd/column-ainodeclass b/tests/ts/lsfd/column-ainodeclass
index 6829494f0e..ab2abebd6a 100755
--- a/tests/ts/lsfd/column-ainodeclass
+++ b/tests/ts/lsfd/column-ainodeclass
@@ -42,10 +42,18 @@ for C in pidfd inotify; do
 	fi
 	wait "${MKFDS_PID}"
     } > "$TS_OUTPUT" 2>&1
+
     if [ "$C-$?" == "pidfd-$TS_EXIT_NOTSUPP" ]; then
 	ts_skip_subtest "pidfd_open(2) is not available"
 	continue
     fi
+
+    STTYPE="$(head -n1 "$TS_OUTPUT" | awk '{print $2}')"
+    if [ "$C-$STTYPE" == "pidfd-REG" ]; then
+	ts_skip_subtest "pidfd is from pidfs instead of anon inode"
+	continue
+    fi
+
     ts_finalize_subtest
 done
 
diff --git a/tests/ts/lsfd/column-name b/tests/ts/lsfd/column-name
index 8bf8f42178..9c67de8893 100755
--- a/tests/ts/lsfd/column-name
+++ b/tests/ts/lsfd/column-name
@@ -64,10 +64,17 @@ for C in ro-regular-file pidfd socketpair; do
 	fi
     } > "$TS_OUTPUT" 2>&1
     wait "${MKFDS_PID}"
+
     if [ "$C-$?" == "pidfd-$TS_EXIT_NOTSUPP" ]; then
 	ts_skip_subtest "pidfd_open(2) is not available"
 	continue
     fi
+
+    case $C in
+    pidfd)
+	sed -i -E 's/(pidfd|anon_inode):\[[a-zA-Z]+\]/[KNAME]/' "$TS_OUTPUT"
+    esac
+
     ts_finalize_subtest
 done
 
diff --git a/tests/ts/lsfd/column-type b/tests/ts/lsfd/column-type
index 77bc5c9400..1b8aa8c6fc 100755
--- a/tests/ts/lsfd/column-type
+++ b/tests/ts/lsfd/column-type
@@ -50,10 +50,17 @@ for C in ro-regular-file pidfd inotify socketpair; do
 	fi
 	wait "${MKFDS_PID}"
     } > "$TS_OUTPUT" 2>&1
+
     if [ "$C-$?" == "pidfd-$TS_EXIT_NOTSUPP" ]; then
 	ts_skip_subtest "pidfd_open(2) is not available"
 	continue
     fi
+
+    case $C in
+    pidfd)
+	sed -i -E 's/UNKN|REG/[STTYPE]/' "$TS_OUTPUT"
+    esac
+
     ts_finalize_subtest
 done
 
diff --git a/tests/ts/lsfd/mkfds-pidfd b/tests/ts/lsfd/mkfds-pidfd
index c0fae4f70a..9b0ff33c60 100755
--- a/tests/ts/lsfd/mkfds-pidfd
+++ b/tests/ts/lsfd/mkfds-pidfd
@@ -44,8 +44,12 @@ EXPR="(PID != ${TARGET}) and (FD == 3) and (PIDFD.PID == ${TARGET})"
     fi
     wait ${MKFDS_PID}
 } > $TS_OUTPUT 2>&1
+
 if [ "$?" == "$TS_EXIT_NOTSUPP" ]; then
     ts_skip "pidfd_open(2) is not available"
 fi
 
+sed -i -E -e 's/UNKN|REG/[STTYPE]/' -e 's/pidfs|anon_inodefs/[SOURCE]/' \
+    $TS_OUTPUT
+
 ts_finalize