[PATCH fstests] generic/126: run it inside its own subdirectory

[Jeff Layton <jlayton@kernel.org>]

I had been seeing some failures in generic/126 when running on NFS under
kdevops.

The problem turned out to be that kdevops makes the root of the NFS
export mode 01777 by default (i.e. with the sticky bit set). This causes
some of these permission tests to fail because the open() is called with
the O_CREAT bit set.

Make the outcome of this test not depend on the permissions on
$TEST_DIR. Create a new directory to do these tests in, and clean it up
when done.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 tests/generic/126 | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tests/generic/126 b/tests/generic/126
index 142d2bb97db706bafd2152856ef0993c5c273441..fe0d6db1b6bd85d4942333fdf04d23a63c4052ec 100755
--- a/tests/generic/126
+++ b/tests/generic/126
@@ -23,7 +23,13 @@ _require_chown
 
 QA_FS_PERMS=$here/src/fs_perms
 
-cd $TEST_DIR
+testdir="$TEST_DIR/generic-126.$$"
+
+mkdir $testdir
+chown 0:0 $testdir
+chmod 0755 $testdir
+cd $testdir
+
 cp $here/src/testx ./testx.file
 
 # file_perm owner_uid owner_gid tester_uid tester_gid perm_to_test expected_result pass=1
@@ -46,7 +52,8 @@ $QA_FS_PERMS 200 99 99 200 99 w 1
 $QA_FS_PERMS 040 99 99 99 500 r 1
 $QA_FS_PERMS 400 99 99 200 99 r 1
 
-rm -f ./testx.file
+cd /
+rm -rf $testdir
 
 status=0
 exit

---
base-commit: 8467552f09e1672a02712653b532a84bd46ea10e
change-id: 20250219-generic126-f81b3022c4b7

Best regards,
-- 
Jeff Layton <jlayton@kernel.org>