From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: Daniel Axtens <dja@axtens.net>
Subject: Re: [PATCH v2] powerpc/64s/radix: Fix huge vmap false positive
Date: Mon, 27 Dec 2021 08:52:11 +1100 [thread overview]
Message-ID: <164055553124.3187272.1718686162886442525.b4-ty@ellerman.id.au> (raw)
In-Reply-To: <20211216103342.609192-1-npiggin@gmail.com>
On Thu, 16 Dec 2021 20:33:42 +1000, Nicholas Piggin wrote:
> pmd_huge() is defined to false when HUGETLB_PAGE is not configured, but
> the vmap code still installs huge PMDs. This leads to false bad PMD
> errors when vunmapping because it is not seen as a huge PTE, and the bad
> PMD check catches it. The end result may not be much more serious than
> some bad pmd warning messages, because the pmd_none_or_clear_bad() does
> what we wanted and clears the huge PTE anyway.
>
> [...]
Applied to powerpc/next.
[1/1] powerpc/64s/radix: Fix huge vmap false positive
https://git.kernel.org/powerpc/c/467ba14e1660b52a2f9338b484704c461bd23019
cheers
prev parent reply other threads:[~2021-12-26 21:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-16 10:33 [PATCH v2] powerpc/64s/radix: Fix huge vmap false positive Nicholas Piggin
2021-12-26 21:52 ` Michael Ellerman [this message]
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