From: John Hubbard <jhubbard@nvidia.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: akpm@linux-foundation.org, alex.sierra@amd.com,
willy@infradead.org, hch@lst.de, Felix.Kuehling@amd.com,
apopple@nvidia.com, david@redhat.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] mm: re-allow pinning of zero pfns (again)
Date: Sun, 28 Aug 2022 10:16:54 -0700 [thread overview]
Message-ID: <b120cf98-85e0-75d5-30f9-44306b036cdd@nvidia.com> (raw)
In-Reply-To: <20220828063759.60c85fd6.alex.williamson@redhat.com>
On 8/28/22 05:37, Alex Williamson wrote:
>> Those notes are all about (some of) the callers. But it's a simple
>> answer, really, so how about just this:
>>
>> /* The zero page is always allowed to be pinned. */
>
> Sure. Are we looking for a re-spin with this? I see Andrew already
> added this incremental change to his hotfix-unstable branch separately.
> I'd hate for a comment re-spin to delay getting a fix for this problem,
> that blocks any VM use cases of VFIO, into mainline any longer. Thanks,
>
Definitely not. Andrews fixup should suffice.
thanks,
--
John Hubbard
NVIDIA
prev parent reply other threads:[~2022-08-28 17:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-10 16:53 Alex Williamson
2022-08-26 19:01 ` Laba, SlawomirX
2022-08-28 0:59 ` John Hubbard
2022-08-28 1:40 ` Andrew Morton
2022-08-28 12:37 ` Alex Williamson
2022-08-28 17:16 ` John Hubbard [this message]
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