From: Oscar Salvador <osalvador@suse.de>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Peter Xu <peterx@redhat.com>, Muchun Song <muchun.song@linux.dev>,
David Hildenbrand <david@redhat.com>,
SeongJae Park <sj@kernel.org>, Miaohe Lin <linmiaohe@huawei.com>,
Michal Hocko <mhocko@suse.com>,
Matthew Wilcox <willy@infradead.org>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Oscar Salvador <osalvador@suse.de>
Subject: [PATCH 04/45] mm/pagewalk: Only call pud_entry when we have a pud leaf
Date: Thu, 4 Jul 2024 06:30:51 +0200 [thread overview]
Message-ID: <20240704043132.28501-5-osalvador@suse.de> (raw)
In-Reply-To: <20240704043132.28501-1-osalvador@suse.de>
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
next prev parent reply other threads:[~2024-07-04 4:32 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-04 4:30 [PATCH 00/45] hugetlb pagewalk unification Oscar Salvador
2024-07-04 4:30 ` [PATCH 01/45] arch/x86: Drop own definition of pgd,p4d_leaf Oscar Salvador
2024-07-04 4:30 ` [PATCH 02/45] mm: Add {pmd,pud}_huge_lock helper Oscar Salvador
2024-07-04 15:02 ` Peter Xu
2024-07-04 4:30 ` [PATCH 03/45] mm/pagewalk: Move vma_pgtable_walk_begin and vma_pgtable_walk_end upfront Oscar Salvador
2024-07-04 4:30 ` Oscar Salvador [this message]
2024-07-04 4:30 ` [PATCH 05/45] mm/pagewalk: Enable walk_pmd_range to handle cont-pmds Oscar Salvador
2024-07-04 15:41 ` David Hildenbrand
2024-07-05 16:56 ` kernel test robot
2024-07-04 4:30 ` [PATCH 06/45] mm/pagewalk: Do not try to split non-thp pud or pmd leafs Oscar Salvador
2024-07-04 4:30 ` [PATCH 07/45] arch/s390: Enable __s390_enable_skey_pmd to handle hugetlb vmas Oscar Salvador
2024-07-04 4:30 ` [PATCH 08/45] fs/proc: Enable smaps_pmd_entry to handle PMD-mapped " Oscar Salvador
2024-07-04 4:30 ` [PATCH 09/45] mm: Implement pud-version functions for swap and vm_normal_page_pud Oscar Salvador
2024-07-04 4:30 ` [PATCH 10/45] fs/proc: Create smaps_pud_range to handle PUD-mapped hugetlb vmas Oscar Salvador
2024-07-04 4:30 ` [PATCH 11/45] fs/proc: Enable smaps_pte_entry to handle cont-pte mapped " Oscar Salvador
2024-07-04 10:30 ` David Hildenbrand
2024-07-04 4:30 ` [PATCH 12/45] fs/proc: Enable pagemap_pmd_range to handle " Oscar Salvador
2024-07-04 4:31 ` [PATCH 13/45] mm: Implement pud-version uffd functions Oscar Salvador
2024-07-05 15:48 ` kernel test robot
2024-07-05 15:48 ` kernel test robot
2024-07-04 4:31 ` [PATCH 14/45] fs/proc: Create pagemap_pud_range to handle PUD-mapped hugetlb vmas Oscar Salvador
2024-07-04 4:31 ` [PATCH 15/45] fs/proc: Adjust pte_to_pagemap_entry for " Oscar Salvador
2024-07-04 4:31 ` [PATCH 16/45] fs/proc: Enable pagemap_scan_pmd_entry to handle " Oscar Salvador
2024-07-04 4:31 ` [PATCH 17/45] mm: Implement pud-version for pud_mkinvalid and pudp_establish Oscar Salvador
2024-07-04 4:31 ` [PATCH 18/45] fs/proc: Create pagemap_scan_pud_entry to handle PUD-mapped hugetlb vmas Oscar Salvador
2024-07-04 4:31 ` [PATCH 19/45] fs/proc: Enable gather_pte_stats to handle " Oscar Salvador
2024-07-04 4:31 ` [PATCH 20/45] fs/proc: Enable gather_pte_stats to handle cont-pte mapped " Oscar Salvador
2024-07-04 4:31 ` [PATCH 21/45] fs/proc: Create gather_pud_stats to handle PUD-mapped hugetlb pages Oscar Salvador
2024-07-04 4:31 ` [PATCH 22/45] mm/mempolicy: Enable queue_folios_pmd to handle hugetlb vmas Oscar Salvador
2024-07-04 4:31 ` [PATCH 23/45] mm/mempolicy: Create queue_folios_pud to handle PUD-mapped " Oscar Salvador
2024-07-04 4:31 ` [PATCH 24/45] mm/memory_failure: Enable check_hwpoisoned_pmd_entry to handle " Oscar Salvador
2024-07-04 4:31 ` [PATCH 25/45] mm/memory-failure: Create check_hwpoisoned_pud_entry to handle PUD-mapped " Oscar Salvador
2024-07-04 4:31 ` [PATCH 26/45] mm/damon: Enable damon_young_pmd_entry to handle " Oscar Salvador
2024-07-04 4:31 ` [PATCH 27/45] mm/damon: Create damon_young_pud_entry to handle PUD-mapped " Oscar Salvador
2024-07-04 4:31 ` [PATCH 28/45] mm/damon: Enable damon_mkold_pmd_entry to handle " Oscar Salvador
2024-07-04 11:03 ` David Hildenbrand
2024-07-04 4:31 ` [PATCH 29/45] mm/damon: Create damon_mkold_pud_entry to handle PUD-mapped " Oscar Salvador
2024-07-04 4:31 ` [PATCH 30/45] mm,mincore: Enable mincore_pte_range to handle " Oscar Salvador
2024-07-04 4:31 ` [PATCH 31/45] mm/mincore: Create mincore_pud_range to handle PUD-mapped " Oscar Salvador
2024-07-04 4:31 ` [PATCH 32/45] mm/hmm: Enable hmm_vma_walk_pmd, to handle " Oscar Salvador
2024-07-04 4:31 ` [PATCH 33/45] mm/hmm: Enable hmm_vma_walk_pud to handle PUD-mapped " Oscar Salvador
2024-07-04 4:31 ` [PATCH 34/45] arch/powerpc: Skip hugetlb vmas in subpage_mark_vma_nohuge Oscar Salvador
2024-07-04 4:31 ` [PATCH 35/45] arch/s390: Skip hugetlb vmas in thp_split_mm Oscar Salvador
2024-07-04 4:31 ` [PATCH 36/45] fs/proc: Make clear_refs_test_walk skip hugetlb vmas Oscar Salvador
2024-07-04 4:31 ` [PATCH 37/45] mm/lock: Make mlock_test_walk " Oscar Salvador
2024-07-04 4:31 ` [PATCH 38/45] mm/madvise: Make swapin_test_walk " Oscar Salvador
2024-07-04 4:31 ` [PATCH 39/45] mm/madvise: Make madvise_cold_test_walk " Oscar Salvador
2024-07-04 4:31 ` [PATCH 40/45] mm/madvise: Make madvise_free_test_walk " Oscar Salvador
2024-07-04 4:31 ` [PATCH 41/45] mm/migrate_device: Make migrate_vma_test_walk " Oscar Salvador
2024-07-04 4:31 ` [PATCH 42/45] mm/memcontrol: Make mem_cgroup_move_test_walk " Oscar Salvador
2024-07-04 4:31 ` [PATCH 43/45] mm/memcontrol: Make mem_cgroup_count_test_walk " Oscar Salvador
2024-07-04 4:31 ` [PATCH 44/45] mm/hugetlb_vmemmap: Make vmemmap_test_walk " Oscar Salvador
2024-07-04 4:31 ` [PATCH 45/45] mm: Delete all hugetlb_entry entries Oscar Salvador
2024-07-04 10:13 ` [PATCH 00/45] hugetlb pagewalk unification Oscar Salvador
2024-07-04 10:44 ` David Hildenbrand
2024-07-04 14:30 ` Peter Xu
2024-07-04 15:23 ` David Hildenbrand
2024-07-04 16:43 ` Peter Xu
2024-07-08 8:18 ` Oscar Salvador
2024-07-08 14:28 ` Jason Gunthorpe
2024-07-10 3:52 ` David Hildenbrand
2024-07-10 11:26 ` Oscar Salvador
2024-07-11 0:15 ` David Hildenbrand
2024-07-11 4:48 ` Oscar Salvador
2024-07-11 4:53 ` David Hildenbrand
2024-07-08 14:35 ` Jason Gunthorpe
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