Re: [PATCH v4 0/12] ptrace: cleaning up ptrace_stop

[Oleg Nesterov]

On 05/05, Eric W. Biederman wrote:
>
> Eric W. Biederman (11):
>       signal: Rename send_signal send_signal_locked
>       signal: Replace __group_send_sig_info with send_signal_locked
>       ptrace/um: Replace PT_DTRACE with TIF_SINGLESTEP
>       ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP
>       ptrace: Remove arch_ptrace_attach
>       signal: Use lockdep_assert_held instead of assert_spin_locked
>       ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
>       ptrace: Document that wait_task_inactive can't fail
>       ptrace: Admit ptrace_stop can generate spuriuos SIGTRAPs
>       ptrace: Don't change __state
>       ptrace: Always take siglock in ptrace_resume
>
> Peter Zijlstra (1):
>       sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state

I can't comment 5/12. to be honest I didn't even try to look into
arch/ia64/.

But other than that I see no problems in this version. However, I'd
like to actually apply the whole series and read the changed code
carefully, but sorry, I don't think I can do this before Monday.

Oleg.