[LTP] syscalls: Add epoll_create03

[linuxtestproject.agent@gmail.com]

Hi Cyril,

--- [PATCH 2/8] ---

On 2026-04-23, Cyril Hrubis wrote:
> syscalls: Add epoll_wait08

> + * - Create an epoll instance and register a socket fd for EPOLLIN.
> + * - Fork a child that waits for the parent to enter epoll_wait, then sends
> + *   SIGUSR1 to interrupt it.

The algorithm comment is wrong on two counts. No fd is registered with the
epoll instance — setup() only calls SAFE_EPOLL_CREATE1(). And it is the
child that blocks in epoll_wait, not the parent; the parent sends SIGUSR1.

--- [PATCH 6/8] ---

On 2026-04-23, Cyril Hrubis wrote:
> syscalls: Add epoll_wait11

> + * - The child's epoll_wait should return with EPOLLHUP and the child reports
> + *   the result via its exit code.

The child reports via tst_res(TPASS/TFAIL, ...) before exit(0), not via
the exit code. Fix the comment accordingly.

---
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