Re: [PATCH 1/1] pidfd: don't do_notify_pidfd() if !thread_group_empty()

[Tycho Andersen]

On Sat, Jan 27, 2024 at 02:21:05PM +0100, Oleg Nesterov wrote:
> do_notify_pidfd() makes no sense until the whole thread group exits, change
> do_notify_parent() to check thread_group_empty().
> 
> This avoids the unnecessary do_notify_pidfd() when tsk is not a leader, or
> it exits before other threads, or it has a ptraced EXIT_ZOMBIE sub-thread.
> 
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>

Looks good to me, thanks.

Reviewed-by: Tycho Andersen <tandersen@xxxxxxxxxxx>

Tycho