Re: [PATCH v3 22/22] mm/mshare: charge fault handling allocations to the mshare owner
From: David Hildenbrand
Date: Mon Sep 08 2025 - 14:50:22 EST
On 20.08.25 03:04, Anthony Yznaga wrote:
When handling a fault in an mshare range, redirect charges for page
tables and other allocations to the mshare owner rather than the
current task.
That looks rather weird. I would have thought there would be an easy way
to query the mshare owner for a given mshare mapping, and if the current
MM corresponds to that owner you know that you are running in the owner
context.
Of course, we could have a helper like is_mshare_owner(mapping, current)
or sth like that.
--
Cheers
David / dhildenb