[PATCH for-next v4] selftests/mm: Add a few missing gitignore files

[Li Zhijian <lizhijian@fujitsu.com>]

Compiled binary files should be added to .gitignore
'git status' complains:
   Untracked files:
   (use "git add <file>..." to include in what will be committed)
         mm/hugetlb_dio
         mm/pkey_sighandler_tests_32
         mm/pkey_sighandler_tests_64

Cc: Donet Tom <donettom@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
---
Cc: linux-mm@kvack.org
---

Hey John,
I added your Reviewed-by tag in this revision which have a minor
updates. Feel free to let me know if you feel this is unsuitable.

Hello,
Cover letter is here.

This patch set aims to make 'git status' clear after 'make' and 'make
run_tests' for kselftests.
---
V4:

  Use the exact filename to fix warning reported by lkp@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202411251308.Vjm5MzVC-lkp@intel.com/
V3:
   nothing change, just resend it
   (This .gitignore have not sorted, so I appended new files to the end)
V2:
  split as seperate patch from a small one [0]
  [0] https://lore.kernel.org/linux-kselftest/20241015010817.453539-1-lizhijian@fujitsu.com/
---
 tools/testing/selftests/mm/.gitignore | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/mm/.gitignore b/tools/testing/selftests/mm/.gitignore
index da030b43e43b..689bbd520296 100644
--- a/tools/testing/selftests/mm/.gitignore
+++ b/tools/testing/selftests/mm/.gitignore
@@ -51,3 +51,6 @@ hugetlb_madv_vs_map
 mseal_test
 seal_elf
 droppable
+hugetlb_dio
+pkey_sighandler_tests_32
+pkey_sighandler_tests_64
-- 
2.44.0