From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Wen Jiang <jiangwenxiaomi@gmail.com>,
akpm@linux-foundation.org, catalin.marinas@arm.com,
linux-mm@kvack.org, urezki@gmail.com, will@kernel.org
Cc: Xueyuan.chen21@gmail.com, ajd@linux.ibm.com,
anshuman.khandual@arm.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, rppt@kernel.org,
ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org,
Wen Jiang <jiangwen6@xiaomi.com>, Leo Yan <leo.yan@arm.com>
Subject: Re: [PATCH v7 1/7] arm64/hugetlb: Extend batching of multiple CONT_PTE in a single PTE setup
Date: Mon, 20 Jul 2026 09:16:14 +0100 [thread overview]
Message-ID: <6adafb9c-b966-473b-90ba-3432b5574039@kernel.org> (raw)
In-Reply-To: <20260715120813.3609949-2-jiangwen6@xiaomi.com>
On 7/15/26 13:08, Wen Jiang wrote:
> From: "Barry Song (Xiaomi)" <baohua@kernel.org>
>
> For sizes aligned to CONT_PTE_SIZE and smaller than PMD_SIZE,
> we can handle CONT_PTE_SIZE groups together.
>
> These additional sizes are mapping spans used by non-hugetlbfs(vmalloc)
> mm code, not new HugeTLB hstate sizes.
>
> Signed-off-by: Barry Song (Xiaomi) <baohua@kernel.org>
> Signed-off-by: Wen Jiang <jiangwen6@xiaomi.com>
> Tested-by: Xueyuan Chen <xueyuan.chen21@gmail.com>
> Tested-by: Leo Yan <leo.yan@arm.com>
> Reviewed-by: Dev Jain <dev.jain@arm.com>
> ---
> arch/arm64/mm/hugetlbpage.c | 15 +++++++++++++++
Huh, why are we touching hugetlbpage.c, which is HUGETLB-only material:
$ cat arch/arm64/mm/Makefile | grep hugetlbpage
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
Something is off here, if vmalloc ends up reusing some of these helpers, they
should probably get moved out here into common arm64 code.
--
Cheers,
David
next prev parent reply other threads:[~2026-07-20 8:16 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-15 12:08 [PATCH v7 0/7] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory Wen Jiang
2026-07-15 12:08 ` [PATCH v7 1/7] arm64/hugetlb: Extend batching of multiple CONT_PTE in a single PTE setup Wen Jiang
2026-07-20 8:16 ` David Hildenbrand (Arm) [this message]
2026-07-15 12:08 ` [PATCH v7 2/7] arm64/vmalloc: Allow arch_vmap_pte_range_map_size to batch multiple CONT_PTE Wen Jiang
2026-07-15 12:08 ` [PATCH v7 3/7] mm/vmalloc: Extract vmap_set_ptes() to consolidate PTE mapping logic Wen Jiang
2026-07-15 12:08 ` [PATCH v7 4/7] mm/vmalloc: Extend page table walk to support larger page_shift sizes and eliminate page table rewalk Wen Jiang
2026-07-15 12:08 ` [PATCH v7 5/7] mm/vmalloc: Extract vm_shift() to consolidate mapping shift selection Wen Jiang
2026-07-16 10:12 ` David Hildenbrand (Arm)
2026-07-20 7:50 ` Dev Jain
2026-07-15 12:08 ` [PATCH v7 6/7] mm/vmalloc: map contiguous pages in batches for vmap() if possible Wen Jiang
2026-07-16 10:57 ` David Hildenbrand (Arm)
2026-07-20 7:50 ` Dev Jain
2026-07-20 16:20 ` Wen Jiang
2026-07-15 12:08 ` [PATCH v7 7/7] mm/vmalloc: align vm_area so vmap() can batch mappings Wen Jiang
2026-07-15 18:37 ` [PATCH v7 0/7] mm/vmalloc: Speed up ioremap, vmalloc and vmap with contiguous memory Andrew Morton
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