From: "David Hildenbrand (Arm)" <david@kernel.org>
To: "Michael S. Tsirkin" <mst@redhat.com>, linux-kernel@vger.kernel.org
Cc: "Jason Wang" <jasowang@redhat.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
"Eugenio Pérez" <eperezma@redhat.com>,
"Muchun Song" <muchun.song@linux.dev>,
"Oscar Salvador" <osalvador@suse.de>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Lorenzo Stoakes" <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
"Vlastimil Babka" <vbabka@kernel.org>,
"Mike Rapoport" <rppt@kernel.org>,
"Suren Baghdasaryan" <surenb@google.com>,
"Michal Hocko" <mhocko@suse.com>,
"Brendan Jackman" <jackmanb@google.com>,
"Johannes Weiner" <hannes@cmpxchg.org>, "Zi Yan" <ziy@nvidia.com>,
"Baolin Wang" <baolin.wang@linux.alibaba.com>,
"Nico Pache" <npache@redhat.com>,
"Ryan Roberts" <ryan.roberts@arm.com>,
"Dev Jain" <dev.jain@arm.com>, "Barry Song" <baohua@kernel.org>,
"Lance Yang" <lance.yang@linux.dev>,
"Hugh Dickins" <hughd@google.com>,
"Matthew Brost" <matthew.brost@intel.com>,
"Joshua Hahn" <joshua.hahnjy@gmail.com>,
"Rakie Kim" <rakie.kim@sk.com>,
"Byungchul Park" <byungchul@sk.com>,
"Gregory Price" <gourry@gourry.net>,
"Ying Huang" <ying.huang@linux.alibaba.com>,
"Alistair Popple" <apopple@nvidia.com>,
"Christoph Lameter" <cl@gentwo.org>,
"David Rientjes" <rientjes@google.com>,
"Roman Gushchin" <roman.gushchin@linux.dev>,
"Harry Yoo" <harry.yoo@oracle.com>,
"Axel Rasmussen" <axelrasmussen@google.com>,
"Yuanchu Xie" <yuanchu@google.com>, "Wei Xu" <weixugc@google.com>,
"Chris Li" <chrisl@kernel.org>,
"Kairui Song" <kasong@tencent.com>,
"Kemeng Shi" <shikemeng@huaweicloud.com>,
"Nhat Pham" <nphamcs@gmail.com>, "Baoquan He" <bhe@redhat.com>,
virtualization@lists.linux.dev, linux-mm@kvack.org,
"Andrea Arcangeli" <aarcange@redhat.com>
Subject: Re: [PATCH v7 00/31] mm/virtio: skip redundant zeroing of host-zeroed pages
Date: Wed, 13 May 2026 09:36:06 +0200 [thread overview]
Message-ID: <e7e9b30f-ee5c-44c4-b377-d70156be41e9@kernel.org> (raw)
In-Reply-To: <cover.1778616612.git.mst@redhat.com>
> Changes since v6 (address review by Gregory Price):
> - Rework hugetlb: use gfp_t parameter instead of bool zero /
> bool *zeroed. Sink zeroing inside alloc_hugetlb_folio().
> Pass raw fault address (user_addr) for cache-friendly zeroing
> on both pool-page and fresh allocation
> paths. (Suggested by Gregory Price)
> - Reorder compaction_alloc_noprof() to call prep_compound_page
> before post_alloc_hook for consistency.
> (Suggested by Gregory Price)
> - Reorder: interleave fix first, PageReported propagation and
> capacity fix moved to front as dependencies.
> - Add USER_ADDR_NONE comments in mmap.c and internal.h explaining why -1 is
> never a valid userspace address.
> - Fix err uninitialized warning in virtballoon_free_page_report().
> - Lots of commit log tweaks.
>
> Also in v7:
> - Fix hugetlb pool page zeroing to use vmf->real_address
> (the actual faulting subpage) instead of vmf->address
> (hugepage-aligned), preserving cache-friendly zeroing
> locality that upstream had at the callsite.
> - Remove dead/broken alloc_hugetlb_folio !CONFIG_HUGETLB_PAGE
> stub (returned NULL but callers check IS_ERR).
Please wait at least a week before sending out new versions of this size.
It's just a lot of noise in people's inbox, and as raised, a lot of people won't
manage to review this before next month.
--
Cheers,
David
prev parent reply other threads:[~2026-05-13 7:36 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 21:04 [PATCH v7 00/31] mm/virtio: skip redundant zeroing of host-zeroed pages Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 01/31] mm: mempolicy: fix interleave index for unaligned VMA start Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 02/31] mm: page_alloc: propagate PageReported flag across buddy splits Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 03/31] mm: page_reporting: allow driver to set batch capacity Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 04/31] mm: hugetlb: remove dead alloc_hugetlb_folio stub Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 05/31] mm: move vma_alloc_folio_noprof to page_alloc.c Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 06/31] mm: thread user_addr through page allocator for cache-friendly zeroing Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 07/31] mm: add folio_zero_user stub for configs without THP/HUGETLBFS Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 08/31] mm: page_alloc: move prep_compound_page before post_alloc_hook Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 09/31] mm: use folio_zero_user for user pages in post_alloc_hook Michael S. Tsirkin
2026-05-12 21:05 ` [PATCH v7 10/31] mm: use __GFP_ZERO in vma_alloc_zeroed_movable_folio Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 11/31] mm: remove arch vma_alloc_zeroed_movable_folio overrides Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 12/31] mm: alloc_anon_folio: pass raw fault address to vma_alloc_folio Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 13/31] mm: alloc_swap_folio: " Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 14/31] mm: use __GFP_ZERO in alloc_anon_folio Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 15/31] mm: vma_alloc_anon_folio_pmd: pass raw fault address to vma_alloc_folio Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 16/31] mm: use __GFP_ZERO in vma_alloc_anon_folio_pmd Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 17/31] mm: hugetlb: add gfp parameter and skip zeroing for zeroed pages Michael S. Tsirkin
2026-05-12 22:03 ` Gregory Price
2026-05-12 23:08 ` Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 18/31] mm: memfd: skip zeroing for zeroed hugetlb pool pages Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 19/31] mm: page_reporting: skip redundant zeroing of host-zeroed reported pages Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 20/31] mm: page_reporting: add per-page zeroed bitmap for host feedback Michael S. Tsirkin
2026-05-12 21:06 ` [PATCH v7 21/31] mm: page_alloc: clear PG_zeroed on buddy merge if not both zero Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 22/31] mm: page_alloc: preserve PG_zeroed in page_del_and_expand Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 23/31] virtio_balloon: submit reported pages as individual buffers Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 24/31] mm: page_reporting: add flush parameter with page budget Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 25/31] mm: page_alloc: propagate PG_zeroed in split_large_buddy Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 26/31] virtio_balloon: skip zeroing for host-zeroed reported pages Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 27/31] virtio_balloon: disable reporting zeroed optimization for confidential guests Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 28/31] mm: add free_frozen_pages_zeroed Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 29/31] mm: add put_page_zeroed and folio_put_zeroed Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 30/31] virtio_balloon: implement VIRTIO_BALLOON_F_DEVICE_INIT_ON_INFLATE Michael S. Tsirkin
2026-05-12 21:07 ` [PATCH v7 31/31] mm: balloon: use put_page_zeroed for zeroed balloon pages Michael S. Tsirkin
2026-05-13 7:36 ` David Hildenbrand (Arm) [this message]
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