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| author | Ryan Roberts <ryan.roberts@arm.com> | 2024-05-01 17:44:39 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-05-07 20:37:00 +0300 |
| commit | b0d7e15a9f21919382075980a5da9ed85ddfcd11 (patch) | |
| tree | 55b8e279bb9c03cc793d24b6ee14a8b866f3292c /mm/debug_vm_pgtable.c | |
| parent | a94032b35e5f97dc1023030d92998418c9feb27b (diff) | |
| download | linux-b0d7e15a9f21919382075980a5da9ed85ddfcd11.tar.xz | |
mm/debug_vm_pgtable: test pmd_leaf() behavior with pmd_mkinvalid()
An invalidated pmd should still cause pmd_leaf() to return true. Let's
test for that to ensure all arches remain consistent.
Link: https://lkml.kernel.org/r/20240501144439.1389048-1-ryan.roberts@arm.com
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/debug_vm_pgtable.c')
| -rw-r--r-- | mm/debug_vm_pgtable.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index f1c9a2c5abc0..b104a353b532 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -982,6 +982,7 @@ static void __init pmd_thp_tests(struct pgtable_debug_args *args) #ifndef __HAVE_ARCH_PMDP_INVALIDATE WARN_ON(!pmd_trans_huge(pmd_mkinvalid(pmd_mkhuge(pmd)))); WARN_ON(!pmd_present(pmd_mkinvalid(pmd_mkhuge(pmd)))); + WARN_ON(!pmd_leaf(pmd_mkinvalid(pmd_mkhuge(pmd)))); #endif /* __HAVE_ARCH_PMDP_INVALIDATE */ } |