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authorQi Zheng <zhengqi.arch@bytedance.com>2024-09-26 14:46:15 +0800
committerAndrew Morton <akpm@linux-foundation.org>2024-11-05 16:56:26 -0800
commit7aefa59899e576db093ff077fd1ebd0d1b748f33 (patch)
tree2066883a74b7ee6acd231444e1644e22d18bc3b4 /arch/powerpc
parent66efef9b1a7d6cc725efa9395fb390483ad5b555 (diff)
powerpc: assert_pte_locked() use pte_offset_map_ro_nolock()
In assert_pte_locked(), we just get the ptl and assert if it was already held, so convert it to using pte_offset_map_ro_nolock(). Link: https://lkml.kernel.org/r/42559e042eb6fc3129a40f710d671712030646b4.1727332572.git.zhengqi.arch@bytedance.com Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Muchun Song <muchun.song@linux.dev> Cc: Hugh Dickins <hughd@google.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Rapoport (Microsoft) <rppt@kernel.org> Cc: Peter Xu <peterx@redhat.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/mm/pgtable.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
index 7316396e452d..61df5aed7989 100644
--- a/arch/powerpc/mm/pgtable.c
+++ b/arch/powerpc/mm/pgtable.c
@@ -398,7 +398,7 @@ void assert_pte_locked(struct mm_struct *mm, unsigned long addr)
*/
if (pmd_none(*pmd))
return;
- pte = pte_offset_map_nolock(mm, pmd, addr, &ptl);
+ pte = pte_offset_map_ro_nolock(mm, pmd, addr, &ptl);
BUG_ON(!pte);
assert_spin_locked(ptl);
pte_unmap(pte);