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Date:   Tue, 2 Apr 2019 16:43:57 -0700
From:   Davidlohr Bueso <dave@stgolabs.net>
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Daniel Jordan <daniel.m.jordan@oracle.com>,
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Subject: Re: [PATCH 1/6] mm: change locked_vm's type from unsigned long to
 atomic64_t
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On Tue, 02 Apr 2019, Andrew Morton wrote:

>Also, we didn't remove any down_write(mmap_sem)s from core code so I'm
>thinking that the benefit of removing a few mmap_sem-takings from a few
>obscure drivers (sorry ;)) is pretty small.

afaik porting the remaining incorrect users of locked_vm to pinned_vm was
the next step before this one, which made converting locked_vm to atomic
hardly worth it. Daniel?

Thanks,
Davidlohr