Merge patch series "exit: change the release_task() paths to call flush_sigqueue...

Oleg Nesterov <oleg@redhat.com> says:

Change the release_task() paths to call flush_sigqueue() lockless.

* patches from https://lore.kernel.org/r/20250206152244.GA14609@redhat.com:
  exit: kill the pointless __exit_signal()->clear_tsk_thread_flag(TIF_SIGPENDING)
  exit: change the release_task() paths to call flush_sigqueue() lockless

Link: https://lore.kernel.org/r/20250206152244.GA14609@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>