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From: Zi Yan <ziy@nvidia.com>
To: David Hildenbrand <david@redhat.com>, linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Lorenzo Stoakes <lorenzo.stoakes@oracle.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>, Vlastimil Babka <vbabka@suse.cz>,
	Mike Rapoport <rppt@kernel.org>,
	Suren Baghdasaryan <surenb@google.com>,
	Michal Hocko <mhocko@suse.com>, Shuah Khan <shuah@kernel.org>,
	linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: [PATCH 1/4] mm/huge_memory: add new_order and offset to split_huge_pages*() pr_debug.
Date: Tue,  5 Aug 2025 22:20:42 -0400	[thread overview]
Message-ID: <20250806022045.342824-2-ziy@nvidia.com> (raw)
In-Reply-To: <20250806022045.342824-1-ziy@nvidia.com>

They are useful information for debugging split huge page tests.

Signed-off-by: Zi Yan <ziy@nvidia.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



  reply	other threads:[~2025-08-06  2:22 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-06  2:20 [PATCH 0/4] Better split_huge_page_test result check Zi Yan
2025-08-06  2:20 ` Zi Yan [this message]
2025-08-06 12:42   ` [PATCH 1/4] mm/huge_memory: add new_order and offset to split_huge_pages*() pr_debug David Hildenbrand
2025-08-06 16:51   ` Lorenzo Stoakes
2025-08-07  6:50   ` Baolin Wang
2025-08-06  2:20 ` [PATCH 2/4] mm/huge_memory: move to next folio after folio_split() succeeds Zi Yan
2025-08-06 12:47   ` David Hildenbrand
2025-08-06 14:29     ` Zi Yan
2025-08-07  8:45   ` Wei Yang
2025-08-07 17:04     ` Zi Yan
2025-08-07  8:55   ` Wei Yang
2025-08-07 17:05     ` Zi Yan
2025-08-08  3:15       ` Wei Yang
2025-08-08 15:24         ` Zi Yan
2025-08-08 15:44           ` Zi Yan
2025-08-06  2:20 ` [PATCH 3/4] selftests/mm: add check_folio_orders() helper Zi Yan
2025-08-07  3:00   ` wang lian
2025-08-07 17:00     ` [PATCH " Zi Yan
2025-08-07  6:49   ` Baolin Wang
2025-08-07 17:02     ` Zi Yan
2025-08-06  2:20 ` [PATCH 4/4] selftests/mm: check after-split folio orders in split_huge_page_test Zi Yan

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