linux-kernel - Re: [PATCH v2 5/6] mm: implement folio wait under VMA lock

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Date:   Fri, 9 Jun 2023 20:36:53 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Suren Baghdasaryan <surenb@...gle.com>
Cc:     akpm@...ux-foundation.org, hannes@...xchg.org, mhocko@...e.com,
        josef@...icpanda.com, jack@...e.cz, ldufour@...ux.ibm.com,
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Subject: Re: [PATCH v2 5/6] mm: implement folio wait under VMA lock

On Fri, Jun 09, 2023 at 11:55:29AM -0700, Suren Baghdasaryan wrote:
> Oh, after rereading I think you are suggesting to replace
> folio_lock_or_retry()/__folio_lock_or_retry() with
> folio_lock_fault()/__folio_lock_fault(), not to add them. Is that
> right?

Right.  It only has two callers.  And I'd do that before adding the
FAULT_VMA_LOCK handling to it.