LU-16589 tests: fix hard-link failure in sanityn/55d

Since coreutils version 8.31, the stat() and lstat()
operations were removed from ln by commit 571f63f5010b,
which caused the following dir hard-link failure in
sanityn/55d:

ln: failed to create hard link '/mnt/lustre2/d55d.sanityn/d55d.sanityn/'
=> '/mnt/lustre2/d55d.sanityn/f1': No such file or directory

This actually reveals a kernel issue which is fixed by commit
v5.18-rc2-188-gb3d4650d82c7.

To avoid the kernel issue and keep the test effective,
this patch appends the target filename to the $tdir/
so as to fix the hard-link failure.

Lustre-change: https://review.whamcloud.com/50127
Lustre-commit: 25c6b7ad2859729197c3cc6e6dcf0621e4bda6fa

Test-Parameters: trivial env=ONLY=55d testlist=sanityn
Test-Parameters: trivial clientdistro=el9.0 env=ONLY=55d testlist=sanityn
Test-Parameters: trivial clientdistro=sles15sp4 env=ONLY=55d testlist=sanityn
Test-Parameters: trivial clientdistro=sles15sp3 env=ONLY=55d testlist=sanityn

Change-Id: I42313e43eaea3d94007d534bf38efdeacf2ede43
Signed-off-by: Jian Yu <yujian@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/50348
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>

diff --git a/lustre/tests/sanityn.sh b/lustre/tests/sanityn.sh
index 11f597c..0d86988 100755 (executable)
--- a/lustre/tests/sanityn.sh
+++ b/lustre/tests/sanityn.sh
@@ -3412,9 +3412,9 @@ test_55d()
        mkdir -p $DIR2/$tdir/$tdir || error "(1) mkdir failed"
 
        # link in reverse locking order
-       ln $DIR2/$tdir/f1 $DIR2/$tdir/$tdir/
+       ln $DIR2/$tdir/f1 $DIR2/$tdir/$tdir/f1 || error "(2) ln failed"
 
-       wait $PID1 && error "(2) mv succeeded"
+       ! wait $PID1 || error "(3) mv succeeded"
        rm -rf $DIR/$tdir
 }
 run_test 55d "rename file vs link"