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-rw-r--r--mm/memory.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 9d5b408..5a73c6e 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2160,15 +2160,15 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma,
pte_unmap_unlock(page_table, ptl);
mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
- /* THP pages are never mlocked */
- if (old_page && !PageTransCompound(old_page)) {
+ if (old_page) {
/*
* Don't let another task, with possibly unlocked vma,
* keep the mlocked page.
*/
if (page_copied && (vma->vm_flags & VM_LOCKED)) {
lock_page(old_page); /* LRU manipulation */
- munlock_vma_page(old_page);
+ if (PageMlocked(old_page))
+ munlock_vma_page(old_page);
unlock_page(old_page);
}
page_cache_release(old_page);
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