From: "David Hildenbrand (Arm)" <david@kernel.org>
To: "Liam R. Howlett" <Liam.Howlett@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Suren Baghdasaryan <surenb@google.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Pedro Falcato <pfalcato@suse.de>,
Vlastimil Babka <vbabka@suse.cz>, Michal Hocko <mhocko@suse.com>,
Jann Horn <jannh@google.com>,
shikemeng@huaweicloud.com, kasong@tencent.com, nphamcs@gmail.com,
bhe@redhat.com, baohua@kernel.org, chrisl@kernel.org,
Matthew Wilcox <willy@infradead.org>,
SeongJae Park <sj@kernel.org>
Subject: Re: [PATCH v3 01/11] mm: Relocate the page table ceiling and floor definitions
Date: Thu, 12 Mar 2026 20:54:36 +0100 [thread overview]
Message-ID: <39436a71-adc3-4ca1-8c4a-87dd4cc955d2@kernel.org> (raw)
In-Reply-To: <231fd45e-3c0a-4c9f-917d-255d03fed6f2@kernel.org>
On 3/12/26 20:53, David Hildenbrand (Arm) wrote:
> On 1/21/26 17:49, Liam R. Howlett wrote:
>> pgtables.h defines a fallback for ceiling and floor of the page tables
>> within the CONFIG_MMU section. Moving the definitions to outside the
>> CONFIG_MMU Allows for using them in generic code.
>>
>> Suggested-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
>> Suggested-by: SeongJae Park <sj@kernel.org>
>> Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
>> ---
>
>
> [...]
>
>> +
>> /*
>> * No-op macros that just return the current protection value. Defined here
>> * because these macros can be used even if CONFIG_MMU is not defined.
>> diff --git a/mm/vma_internal.h b/mm/vma_internal.h
>> index 2f05735ff190c..2da6d224c1a85 100644
>> --- a/mm/vma_internal.h
>> +++ b/mm/vma_internal.h
>> @@ -46,6 +46,7 @@
>> #include <linux/swap.h>
>> #include <linux/uprobes.h>
>> #include <linux/userfaultfd_k.h>
>> +#include <linux/pgtable.h>
>>
>> #include <asm/current.h>
>> #include <asm/tlb.h>
>
> I was also confused by that change. But it's not worth a respin :)
>
> Acked-by: David Hildenbrand (Arm) <david@kernel.org>
>
Ah, and now realizing that this already hit upstream.
--
Cheers,
David
next prev parent reply other threads:[~2026-03-12 19:54 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-21 16:49 [PATCH v3 00/11] Remove XA_ZERO from error recovery of dup_mmap() Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 01/11] mm: Relocate the page table ceiling and floor definitions Liam R. Howlett
2026-01-21 17:26 ` SeongJae Park
2026-01-21 18:52 ` Liam R. Howlett
2026-03-12 19:53 ` David Hildenbrand (Arm)
2026-03-12 19:54 ` David Hildenbrand (Arm) [this message]
2026-01-21 16:49 ` [PATCH v3 02/11] mm/mmap: Move exit_mmap() trace point Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 03/11] mm/mmap: Abstract vma clean up from exit_mmap() Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 04/11] mm/vma: Add limits to unmap_region() for vmas Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 05/11] mm/memory: Add tree limit to free_pgtables() Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 06/11] mm/vma: Add page table limit to unmap_region() Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 07/11] mm: Change dup_mmap() recovery Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 08/11] mm: Introduce unmap_desc struct to reduce function arguments Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 09/11] mm/vma: Use unmap_desc in exit_mmap() and vms_clear_ptes() Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 10/11] mm/vma: Use unmap_region() in vms_clear_ptes() Liam R. Howlett
2026-01-21 16:49 ` [PATCH v3 11/11] mm: Use unmap_desc struct for freeing page tables Liam R. Howlett
2026-01-24 18:45 ` Chris Mason
2026-02-07 12:37 ` Liam R. Howlett
2026-02-10 20:41 ` Liam R. Howlett
2026-02-10 21:42 ` [PATCH] mm: Fix up unmap desc use on exit_mmap() Liam R. Howlett
2026-01-21 18:59 ` [PATCH v3 00/11] Remove XA_ZERO from error recovery of dup_mmap() Andrew Morton
2026-01-21 19:34 ` Liam R. Howlett
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