[PATCH 04/45] mm/pagewalk: Only call pud_entry when we have a pud leaf

Check first whether the pud is leaf one before trying to call pud_entry.

Signed-off-by: Oscar Salvador <osalvador@suse.de>
---
 mm/pagewalk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index eba705def9a0..d93e77411482 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -155,7 +155,7 @@ static int walk_pud_range(p4d_t *p4d, unsigned long addr, unsigned long end,
 
 		walk->action = ACTION_SUBTREE;
 
-		if (ops->pud_entry)
+		if (ops->pud_entry && pud_leaf(*pud))
 			err = ops->pud_entry(pud, addr, next, walk);
 		if (err)
 			break;
-- 
2.26.2

• [PATCH 01/45] arch/x86: Drop own definition of pgd,p4d_leaf
• [PATCH 02/45] mm: Add {pmd,pud}_huge_lock helper
• [PATCH 03/45] mm/pagewalk: Move vma_pgtable_walk_begin and vma_pgtable_walk_end upfront
• [PATCH 04/45] mm/pagewalk: Only call pud_entry when we have a pud leaf
• [PATCH 05/45] mm/pagewalk: Enable walk_pmd_range to handle cont-pmds
• [PATCH 06/45] mm/pagewalk: Do not try to split non-thp pud or pmd leafs
• [PATCH 07/45] arch/s390: Enable __s390_enable_skey_pmd to handle hugetlb vmas
• [PATCH 08/45] fs/proc: Enable smaps_pmd_entry to handle PMD-mapped hugetlb vmas
• [PATCH 09/45] mm: Implement pud-version functions for swap and vm_normal_page_pud
• [PATCH 10/45] fs/proc: Create smaps_pud_range to handle PUD-mapped hugetlb vmas
• [PATCH 11/45] fs/proc: Enable smaps_pte_entry to handle cont-pte mapped hugetlb vmas
• [PATCH 12/45] fs/proc: Enable pagemap_pmd_range to handle hugetlb vmas
• [PATCH 13/45] mm: Implement pud-version uffd functions
• [PATCH 14/45] fs/proc: Create pagemap_pud_range to handle PUD-mapped hugetlb vmas
• [PATCH 15/45] fs/proc: Adjust pte_to_pagemap_entry for hugetlb vmas
• [PATCH 16/45] fs/proc: Enable pagemap_scan_pmd_entry to handle hugetlb vmas
• [PATCH 17/45] mm: Implement pud-version for pud_mkinvalid and pudp_establish
• [PATCH 18/45] fs/proc: Create pagemap_scan_pud_entry to handle PUD-mapped hugetlb vmas
• [PATCH 19/45] fs/proc: Enable gather_pte_stats to handle hugetlb vmas
• [PATCH 20/45] fs/proc: Enable gather_pte_stats to handle cont-pte mapped hugetlb vmas
• [PATCH 21/45] fs/proc: Create gather_pud_stats to handle PUD-mapped hugetlb pages
• [PATCH 22/45] mm/mempolicy: Enable queue_folios_pmd to handle hugetlb vmas
• [PATCH 23/45] mm/mempolicy: Create queue_folios_pud to handle PUD-mapped hugetlb vmas
• [PATCH 24/45] mm/memory_failure: Enable check_hwpoisoned_pmd_entry to handle hugetlb vmas
• [PATCH 25/45] mm/memory-failure: Create check_hwpoisoned_pud_entry to handle PUD-mapped hugetlb vmas
• [PATCH 26/45] mm/damon: Enable damon_young_pmd_entry to handle hugetlb vmas
• [PATCH 27/45] mm/damon: Create damon_young_pud_entry to handle PUD-mapped hugetlb vmas
• [PATCH 28/45] mm/damon: Enable damon_mkold_pmd_entry to handle hugetlb vmas
• [PATCH 29/45] mm/damon: Create damon_mkold_pud_entry to handle PUD-mapped hugetlb vmas
• [PATCH 30/45] mm,mincore: Enable mincore_pte_range to handle hugetlb vmas
• [PATCH 31/45] mm/mincore: Create mincore_pud_range to handle PUD-mapped hugetlb vmas
• [PATCH 32/45] mm/hmm: Enable hmm_vma_walk_pmd, to handle hugetlb vmas
• [PATCH 33/45] mm/hmm: Enable hmm_vma_walk_pud to handle PUD-mapped hugetlb vmas
• [PATCH 34/45] arch/powerpc: Skip hugetlb vmas in subpage_mark_vma_nohuge
• [PATCH 35/45] arch/s390: Skip hugetlb vmas in thp_split_mm
• [PATCH 36/45] fs/proc: Make clear_refs_test_walk skip hugetlb vmas
• [PATCH 37/45] mm/lock: Make mlock_test_walk skip hugetlb vmas
• [PATCH 38/45] mm/madvise: Make swapin_test_walk skip hugetlb vmas
• [PATCH 39/45] mm/madvise: Make madvise_cold_test_walk skip hugetlb vmas
• [PATCH 40/45] mm/madvise: Make madvise_free_test_walk skip hugetlb vmas
• [PATCH 41/45] mm/migrate_device: Make migrate_vma_test_walk skip hugetlb vmas
• [PATCH 42/45] mm/memcontrol: Make mem_cgroup_move_test_walk skip hugetlb vmas
• [PATCH 43/45] mm/memcontrol: Make mem_cgroup_count_test_walk skip hugetlb vmas
• [PATCH 44/45] mm/hugetlb_vmemmap: Make vmemmap_test_walk skip hugetlb vmas
• [PATCH 45/45] mm: Delete all hugetlb_entry entries