Re: [PATCH] x86/mm/pat: take cpa_lock around large-page collapse

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From: Dave Hansen

Date: Fri Jul 10 2026 - 13:18:39 EST

cpa_collapse_large_pages() seems to be a never ending source of bugs.
I'm tempted to say we should just axe it, call it a failed experiment,
and move on with life.

Is it worth keeping?