From: Zi Yan <ziy@nvidia.com>
To: David Hildenbrand <david@redhat.com>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Dan Carpenter <dan.carpenter@linaro.org>,
Antonio Quartulli <antonio@mandelbit.com>,
Hugh Dickins <hughd@google.com>,
Kirill Shutemov <k.shutemov@gmail.com>, Zi Yan <ziy@nvidia.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Nico Pache <npache@redhat.com>,
Ryan Roberts <ryan.roberts@arm.com>, Dev Jain <dev.jain@arm.com>,
Barry Song <baohua@kernel.org>, Balbir Singh <balbirs@nvidia.com>,
Matthew Brost <matthew.brost@intel.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH v4 2/6] mm/huge_memory: remove after_split label in __split_unmapped_folio().
Date: Thu, 17 Jul 2025 22:29:56 -0400 [thread overview]
Message-ID: <20250718023000.4044406-3-ziy@nvidia.com> (raw)
In-Reply-To: <20250718023000.4044406-1-ziy@nvidia.com>
Checking stop_split instead to avoid the goto statement.
Signed-off-by: Zi Yan <ziy@nvidia.com>
---
mm/huge_memory.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 63eebca07628..e01359008b13 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -3463,18 +3463,18 @@ static int __split_unmapped_folio(struct folio *folio, int new_order,
if (xas_error(xas)) {
ret = xas_error(xas);
stop_split = true;
- goto after_split;
}
}
}
- folio_split_memcg_refs(folio, old_order, split_order);
- split_page_owner(&folio->page, old_order, split_order);
- pgalloc_tag_split(folio, old_order, split_order);
+ if (!stop_split) {
+ folio_split_memcg_refs(folio, old_order, split_order);
+ split_page_owner(&folio->page, old_order, split_order);
+ pgalloc_tag_split(folio, old_order, split_order);
- __split_folio_to_order(folio, old_order, split_order);
+ __split_folio_to_order(folio, old_order, split_order);
+ }
-after_split:
/*
* Iterate through after-split folios and update folio stats.
* But in buddy allocator like split, the folio
--
2.47.2
next prev parent reply other threads:[~2025-07-18 2:30 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-18 2:29 [PATCH v4 0/6] __folio_split() clean up Zi Yan
2025-07-18 2:29 ` [PATCH v4 1/6] mm/huge_memory: move unrelated code out of __split_unmapped_folio() Zi Yan
2025-07-18 7:19 ` David Hildenbrand
2025-07-18 14:55 ` Lorenzo Stoakes
2025-07-18 2:29 ` Zi Yan [this message]
2025-07-18 7:19 ` [PATCH v4 2/6] mm/huge_memory: remove after_split label in __split_unmapped_folio() David Hildenbrand
2025-07-18 14:58 ` Lorenzo Stoakes
2025-07-18 2:29 ` [PATCH v4 3/6] mm/huge_memory: deduplicate code in __folio_split() Zi Yan
2025-07-18 7:23 ` David Hildenbrand
2025-07-18 2:29 ` [PATCH v4 4/6] mm/huge_memory: convert VM_BUG* to VM_WARN* in __folio_split Zi Yan
2025-07-18 7:22 ` David Hildenbrand
2025-07-18 14:48 ` Zi Yan
2025-07-18 15:05 ` Lorenzo Stoakes
2025-07-18 2:29 ` [PATCH v4 5/6] mm/huge_memory: get frozen folio refcount with folio_expected_ref_count() Zi Yan
2025-07-18 2:30 ` [PATCH v4 6/6] mm/huge_memory: refactor after-split (page) cache code Zi Yan
2025-07-18 5:26 ` [PATCH v4 0/6] __folio_split() clean up Lorenzo Stoakes
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