Messages in this thread | | | Date | Thu, 2 Mar 2023 18:41:47 +0100 | From | Michal Hocko <> | Subject | Re: [PATCH 1/1] psi: remove 500ms min window size limitation for triggers |
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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
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