[LTP] Added new_behavior flag to detect kernel version Kernel >= 6.11: Tests that creat() succeeds (write to executed file allowed)

[linuxtestproject.agent@gmail.com]

Hi Lekshmi,

On 2026-04-21, lekshmi-cpillai wrote:
> Added new_behavior flag to detect kernel version Kernel >= 6.11: Tests that creat() succeeds (write to executed file allowed)

Use imperative mood in the subject: "creat07: Support both old and new
write-to-executed-file behavior". Also add a commit body explaining why
the change is needed — that the previous tst_brk(TCONF) silently skipped
the test on all kernels >= 6.11 instead of verifying the allowed behavior.
Finally, the Signed-off-by tag is missing.

> +static int new_behavior;

[...]

> -               tst_brk(TCONF, "Skipping test, write to executed file is "
> -                       "allowed since 6.11-rc1.\n"
> -                       "2a010c412853 (\"fs: don't block i_writecount during exec\")");
> +               new_behavior = 1;

The logic change is correct. However the doc comment at the top of the
file still only mentions ETXTBSY — update it to describe both behaviors.

[...]

Pre-existing issues noticed in the surrounding code (not introduced
by this patch):

- creat07.c:35 — O_WRONLY (value 1) is passed as the mode argument to
  creat(); the second parameter is mode_t, not open flags — likely
  intended to be 0600.

---
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