[folded-merged] kho-fix-boot-failure-due-to-kmemleak-access-to-non-present-pages-v4.patch removed from -mm tree

[folded-merged] kho-fix-boot-failure-due-to-kmemleak-access-to-non-present-pages-v4.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: kho-fix-boot-failure-due-to-kmemleak-access-to-non-present-pages-v4
has been removed from the -mm tree.  Its filename was
     kho-fix-boot-failure-due-to-kmemleak-access-to-non-present-pages-v4.patch

This patch was dropped because it was folded into kho-fix-boot-failure-due-to-kmemleak-access-to-non-present-pages.patch

------------------------------------------------------
From: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Subject: kho-fix-boot-failure-due-to-kmemleak-access-to-non-present-pages-v4
Date: Thu, 27 Nov 2025 12:27:00 +0000

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Link: https://lkml.kernel.org/r/20251127122700.103927-1-ranxiaokai627@163.com
Fixes: 3dc92c311498 ("kexec: add Kexec HandOver (KHO) generation helpers")
Signed-off-by: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Changyuan Lyu <changyuanl@google.com>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/liveupdate/kexec_handover.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/kernel/liveupdate/kexec_handover.c~kho-fix-boot-failure-due-to-kmemleak-access-to-non-present-pages-v4
+++ a/kernel/liveupdate/kexec_handover.c
@@ -1370,6 +1370,14 @@ static __init int kho_init(void)
 		unsigned long count = kho_scratch[i].size >> PAGE_SHIFT;
 		unsigned long pfn;
 
+		/*
+		 * When debug_pagealloc is enabled, __free_pages() clears the
+		 * corresponding PRESENT bit in the kernel page table.
+		 * Subsequent kmemleak scans of these pages cause the
+		 * non-PRESENT page faults.
+		 * Mark scratch areas with kmemleak_ignore_phys() to exclude
+		 * them from kmemleak scanning.
+		 */
 		kmemleak_ignore_phys(kho_scratch[i].addr);
 		for (pfn = base_pfn; pfn < base_pfn + count;
 		     pfn += pageblock_nr_pages)
_

Patches currently in -mm which might be from ran.xiaokai@zte.com.cn are

kho-fix-boot-failure-due-to-kmemleak-access-to-non-present-pages.patch