From: Kiryl Shutsemau <kas@kernel.org>
To: kasong@tencent.com
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
David Hildenbrand <david@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>, Zi Yan <ziy@nvidia.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
"Liam R. Howlett" <liam@infradead.org>,
Nico Pache <nico.pache@linux.dev>,
Ryan Roberts <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>,
Lance Yang <lance.yang@linux.dev>,
Usama Arif <usama.arif@linux.dev>,
Vlastimil Babka <vbabka@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>, Chris Li <chrisl@kernel.org>,
Kemeng Shi <shikemeng@huaweicloud.com>,
Nhat Pham <nphamcs@gmail.com>, Baoquan He <baoquan.he@linux.dev>,
Barry Song <baohua@kernel.org>,
Youngjun Park <youngjun.park@lge.com>,
Yeoreum Yun <yeoreum.yun@arm.com>,
Shivam Kalra <shivamkalra98@zohomail.in>,
Kairui Song <ryncsn@gmail.com>
Subject: Re: [PATCH v4 13/17] mm/huge_memory: move memcg switch into the file split helper
Date: Wed, 9 Sep 2026 09:21:37 +0100 [thread overview]
Message-ID: <aqEW5zTARWWFf4L-@thinkstation> (raw)
In-Reply-To: <20260908-swap-thp-cleanup-v4-13-b532a3f20e71@tencent.com>
On Tue, Sep 08, 2026 at 02:12:17AM +0800, Kairui Song via B4 Relay wrote:
> From: Kairui Song <kasong@tencent.com>
>
> The xarray node allocations in __folio_freeze_split_file() need
> to be charged to the folio's memcg, so move the memcg switch from
> __folio_split() into the helper.
>
> The anon split helper and the after-split folio freeing perform no
> chargeable allocations, so no memcg handling is left in __folio_split().
> Rename its out_no_memcg label to out.
>
> Acked-by: Zi Yan <ziy@nvidia.com>
> Acked-by: David Hildenbrand (Arm) <david@kernel.org>
> Reviewed-by: Yeoreum Yun <yeoreum.yun@arm.com>
> Signed-off-by: Kairui Song <kasong@tencent.com>
Reviewed-by: Kiryl Shutsemau (Meta) <kas@kernel.org>
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2026-09-09 8:21 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-07 18:12 [PATCH v4 00/17] mm/huge_memory: clean up and decouple the anon and file split helpers Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 18:12 ` [PATCH v4 01/17] mm/swap: fix off-by-one in swap cache replace sanity check Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 18:12 ` [PATCH v4 02/17] mm/huge_memory: fix rejection of swap cache folios with a mapping Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 18:12 ` [PATCH v4 03/17] mm/huge_memory: invert folio_ref_freeze() check to reduce indentation Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 18:12 ` [PATCH v4 04/17] mm/huge_memory: split the routine for splitting anon and file folio Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-08 15:11 ` Kiryl Shutsemau
2026-09-07 18:12 ` [PATCH v4 05/17] mm/huge_memory: rename __split_unmapped_folio() to __split_frozen_folio() Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-09 17:36 ` David Hildenbrand (Arm)
2026-09-07 18:12 ` [PATCH v4 06/17] mm/huge_memory: consolidate irq and locking for folio split Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-09 17:39 ` David Hildenbrand (Arm)
2026-09-07 18:12 ` [PATCH v4 07/17] mm/huge_memory: move EOF trimming into the file split helper Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 18:12 ` [PATCH v4 08/17] mm/huge_memory: move unmap and remap into the split helpers Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-08 15:13 ` Kiryl Shutsemau
2026-09-07 18:12 ` [PATCH v4 09/17] mm/huge_memory: rename remap_page() to remap_folio() Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 19:48 ` Zi Yan
2026-09-08 15:17 ` Kiryl Shutsemau
2026-09-09 17:37 ` David Hildenbrand (Arm)
2026-09-07 18:12 ` [PATCH v4 10/17] mm/huge_memory: move the racy refcount check into unmap_folio() Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 19:52 ` Zi Yan
2026-09-08 15:20 ` Kiryl Shutsemau
2026-09-07 18:12 ` [PATCH v4 11/17] mm/huge_memory: move filemap management into the file split helper Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 19:57 ` Zi Yan
2026-09-08 15:25 ` Kiryl Shutsemau
2026-09-07 18:12 ` [PATCH v4 12/17] mm/huge_memory: move anon_vma handling into the anon " Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-07 20:39 ` Zi Yan
2026-09-08 6:32 ` Kairui Song
2026-09-08 15:56 ` Kiryl Shutsemau
2026-09-11 17:59 ` Kairui Song
2026-09-07 18:12 ` [PATCH v4 13/17] mm/huge_memory: move memcg switch into the file " Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-09 8:21 ` Kiryl Shutsemau [this message]
2026-09-07 18:12 ` [PATCH v4 14/17] mm/huge_memory: drop the unused do_lru argument of " Kairui Song
2026-09-07 18:12 ` Kairui Song via B4 Relay
2026-09-09 8:22 ` Kiryl Shutsemau
2026-09-07 18:12 ` [PATCH v4 15/17] mm/huge_memory: clean up after-split folio freeing in __folio_split Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-09 8:27 ` Kiryl Shutsemau
2026-09-07 18:12 ` [PATCH v4 16/17] mm/huge_memory: count only swap cache refs in anon folio split Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-09 8:31 ` Kiryl Shutsemau
2026-09-07 18:12 ` [PATCH v4 17/17] mm/huge_memory: drop the redundant mapping argument of __split_frozen_folio Kairui Song via B4 Relay
2026-09-07 18:12 ` Kairui Song
2026-09-09 8:32 ` Kiryl Shutsemau
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