Re: [PATCH 1/1] psi: remove 500ms min window size limitation for triggers

Michal Hocko
2023-03-02T17:41:47Z

On Thu 02-03-23 08:13:54, Suren Baghdasaryan wrote:
[...]
> Let's roll this check without additional changes and then consolidate
> the checking inside psi_trigger_create() in a separate patch. If
> anybody objects to the late permission check we will just revert that
> last change without affecting anything else.

Permissions checks at write time are problematic because userspace
cannot drop privileges. Also I think it would be an antipattern for how
we do this in general.
--
Michal Hocko
SUSE Labs