From: Qi Zheng <qi.zheng@linux.dev>
To: Muchun Song <songmuchun@bytedance.com>,
Andrew Morton <akpm@linux-foundation.org>,
Oscar Salvador <osalvador@suse.de>,
David Hildenbrand <david@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>,
Vlastimil Babka <vbabka@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>, Michal Hocko <mhocko@suse.com>,
David Laight <david.laight.linux@gmail.com>,
"Liam R . Howlett" <liam@infradead.org>,
Suren Baghdasaryan <surenb@google.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Muchun Song <muchun.song@linux.dev>
Subject: Re: [PATCH v5 14/17] mm/hugetlb: remove HUGE_BOOTMEM_HVO
Date: Tue, 25 Aug 2026 21:28:41 +0800 [thread overview]
Message-ID: <3e4e6840-e7a4-404b-84b0-5d4bb79d64d0@linux.dev> (raw)
In-Reply-To: <20260825084608.47437-15-songmuchun@bytedance.com>
On 8/25/26 4:46 PM, Muchun Song wrote:
> The HUGE_BOOTMEM_HVO flag tracked whether a bootmem huge page had
> already gone through the old early vmemmap optimization path.
>
> Now that HugeTLB uses section-based vmemmap optimization, that state is
> already reflected in the section order.
>
> Remove HUGE_BOOTMEM_HVO and its helper, and use the section state
> directly when deciding whether to mark a folio as vmemmap-optimized.
>
> Signed-off-by: Muchun Song <songmuchun@bytedance.com>
> Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
> ---
> v3:
> - Use the order-based helper for the bootmem vmemmap-optimized check
>
> v2:
> - Collect Acked-by from Mike Rapoport
> ---
> include/linux/hugetlb.h | 5 ++---
> mm/hugetlb.c | 12 +-----------
> mm/hugetlb_vmemmap.c | 2 --
> 3 files changed, 3 insertions(+), 16 deletions(-)
Acked-by: Qi Zheng <qi.zheng@linux.dev>
Thanks,
Qi
next prev parent reply other threads:[~2026-08-25 13:29 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-25 8:45 [PATCH v5 00/17] mm: Introduce section-based vmemmap optimization for HugeTLB Muchun Song
2026-08-25 8:45 ` [PATCH v5 01/17] mm/sparse: relax struct mem_section size constraints Muchun Song
2026-09-09 9:33 ` David Hildenbrand (Arm)
2026-08-25 8:45 ` [PATCH v5 02/17] mm/sparse-vmemmap: rename HVO order macros Muchun Song
2026-08-25 10:05 ` Qi Zheng
2026-08-25 8:45 ` [PATCH v5 03/17] mm/mm_init: skip initializing shared vmemmap tail pages Muchun Song
2026-08-25 9:30 ` Mike Rapoport
2026-08-25 10:15 ` Qi Zheng
2026-09-09 9:36 ` David Hildenbrand (Arm)
2026-09-09 11:30 ` Muchun Song
2026-08-25 8:45 ` [PATCH v5 04/17] mm/sparse-vmemmap: initialize shared tail vmemmap pages on allocation Muchun Song
2026-08-25 9:30 ` Mike Rapoport
2026-08-25 10:40 ` Qi Zheng
2026-09-09 9:39 ` David Hildenbrand (Arm)
2026-09-09 12:49 ` Muchun Song
2026-08-25 8:45 ` [PATCH v5 05/17] mm/sparse-vmemmap: support section-based vmemmap accounting Muchun Song
2026-08-25 10:47 ` Qi Zheng
2026-08-25 8:45 ` [PATCH v5 06/17] mm/mm_init: factor out pfn_to_zone() Muchun Song
2026-08-25 10:51 ` Qi Zheng
2026-08-25 8:45 ` [PATCH v5 07/17] mm/sparse-vmemmap: move helpers ahead of future callers Muchun Song
2026-08-25 10:54 ` Qi Zheng
2026-08-25 8:45 ` [PATCH v5 08/17] mm/sparse-vmemmap: support section-based vmemmap optimization Muchun Song
2026-08-25 9:30 ` Mike Rapoport
2026-08-25 12:38 ` Qi Zheng
2026-08-25 8:46 ` [PATCH v5 09/17] mm/sparse: initialize memory sections earlier Muchun Song
2026-08-25 12:49 ` Qi Zheng
2026-09-09 9:56 ` David Hildenbrand (Arm)
2026-09-09 12:29 ` Muchun Song
2026-09-09 12:48 ` David Hildenbrand (Arm)
2026-09-09 12:58 ` Muchun Song
2026-08-25 8:46 ` [PATCH v5 10/17] mm/hugetlb: switch HugeTLB to section-based vmemmap optimization Muchun Song
2026-08-25 13:12 ` Qi Zheng
2026-08-26 2:38 ` Muchun Song
2026-08-26 3:24 ` Qi Zheng
2026-09-09 9:58 ` David Hildenbrand (Arm)
2026-09-09 13:08 ` Muchun Song
2026-09-09 13:39 ` David Hildenbrand (Arm)
2026-08-25 8:46 ` [PATCH v5 11/17] mm/sparse-vmemmap: remove SPARSEMEM_VMEMMAP_PREINIT support Muchun Song
2026-08-25 13:16 ` Qi Zheng
2026-09-09 9:59 ` David Hildenbrand (Arm)
2026-08-25 8:46 ` [PATCH v5 12/17] mm/sparse: inline usemap allocation into sparse_init_nid() Muchun Song
2026-09-09 10:01 ` David Hildenbrand (Arm)
2026-08-25 8:46 ` [PATCH v5 13/17] mm/sparse: remove section_map_size() Muchun Song
2026-09-09 10:02 ` David Hildenbrand (Arm)
2026-08-25 8:46 ` [PATCH v5 14/17] mm/hugetlb: remove HUGE_BOOTMEM_HVO Muchun Song
2026-08-25 13:28 ` Qi Zheng [this message]
2026-08-25 8:46 ` [PATCH v5 15/17] mm/hugetlb: remove HUGE_BOOTMEM_CMA Muchun Song
2026-08-25 13:42 ` Qi Zheng
2026-08-25 8:46 ` [PATCH v5 16/17] mm/hugetlb: localize struct huge_bootmem_page Muchun Song
2026-08-25 13:38 ` Qi Zheng
2026-08-25 8:46 ` [PATCH v5 17/17] mm/hugetlb: localize HUGE_BOOTMEM_ZONES_VALID Muchun Song
2026-08-25 13:40 ` Qi Zheng
2026-08-28 4:20 ` [PATCH v5 00/17] mm: Introduce section-based vmemmap optimization for HugeTLB Andrew Morton
2026-09-09 9:31 ` David Hildenbrand (Arm)
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