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Message-ID: <20250806022045.342824-2-ziy@nvidia.com>
Date: Tue, 5 Aug 2025 22:20:42 -0400
From: Zi Yan <ziy@...dia.com>
To: David Hildenbrand <david@...hat.com>,
linux-mm@...ck.org
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
Zi Yan <ziy@...dia.com>,
Baolin Wang <baolin.wang@...ux.alibaba.com>,
"Liam R. Howlett" <Liam.Howlett@...cle.com>,
Nico Pache <npache@...hat.com>,
Ryan Roberts <ryan.roberts@....com>,
Dev Jain <dev.jain@....com>,
Barry Song <baohua@...nel.org>,
Vlastimil Babka <vbabka@...e.cz>,
Mike Rapoport <rppt@...nel.org>,
Suren Baghdasaryan <surenb@...gle.com>,
Michal Hocko <mhocko@...e.com>,
Shuah Khan <shuah@...nel.org>,
linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org
Subject: [PATCH 1/4] mm/huge_memory: add new_order and offset to split_huge_pages*() pr_debug.
They are useful information for debugging split huge page tests.
Signed-off-by: Zi Yan <ziy@...dia.com>
---
mm/huge_memory.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 2b4ea5a2ce7d..8a11c2d402d4 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -4327,8 +4327,8 @@ static int split_huge_pages_pid(int pid, unsigned long vaddr_start,
goto out;
}
- pr_debug("Split huge pages in pid: %d, vaddr: [0x%lx - 0x%lx]\n",
- pid, vaddr_start, vaddr_end);
+ pr_debug("Split huge pages in pid: %d, vaddr: [0x%lx - 0x%lx], new_order: %u, in_folio_offset %ld\n",
+ pid, vaddr_start, vaddr_end, new_order, in_folio_offset);
mmap_read_lock(mm);
/*
--
2.47.2
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