diff options
| -rw-r--r-- | mm/hugetlb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index a088f593a80..f7355bf2f28 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -365,6 +365,11 @@ void __unmap_hugepage_range(struct vm_area_struct *vma, unsigned long start, pte_t pte; struct page *page; struct page *tmp; + /* + * A page gathering list, protected by per file i_mmap_lock. The + * lock is used to avoid list corruption from multiple unmapping + * of the same page since we are using page->lru. + */ LIST_HEAD(page_list); WARN_ON(!is_vm_hugetlb_page(vma)); |