Re: [PATCH] mm: Always sanity check anon_vma first for per-vma locks

[Matthew Wilcox]

On Thu, Apr 11, 2024 at 11:34:44AM -0400, Peter Xu wrote:
>    If the answer is yes, I'd say please provide some document patch to
>    support such behavior, you can stop my patch from getting merged now,
>    but it's never clear whether someone else will see this and post it
>    again.  If it wasn't obviously to Suren who introduced per-vma lock [1],
>    then I won't be surprised it's unknown to most developers on the list.

Anyone touching this path should have a good idea about what is and is
not the common case.  Your confidence greatly exceeded your ability
here.  I will not be submitting such a patch.