Re: [PATCH] mm: terminate shrink_slab loop if signal is pending

Andrew Morton
2017-12-06T23:26:25Z

On Wed, 6 Dec 2017 11:20:26 -0800 Suren Baghdasaryan <surenb@google.com> wrote:

> Slab shrinkers can be quite time consuming and when signal
> is pending they can delay handling of the signal. If fatal
> signal is pending there is no point in shrinking that process
> since it will be killed anyway. This change checks for pending
> fatal signals inside shrink_slab loop and if one is detected
> terminates this loop early.

Some quantification of "quite time consuming" and "delay" would be
interesting, please.