From: Ma Wupeng <mawupeng1@huawei.com> euleros inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7WLVX --------------------------------------------- Use find_vma_intersection instead of find_vma to find overlapping vma. Fixes: 848492f233ce ("mm: gmem: Introduce vm_object for gmem") Signed-off-by: Ma Wupeng <mawupeng1@huawei.com> --- mm/mmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mmap.c b/mm/mmap.c index eb24efdba25d..2aef07b8a85e 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -2701,7 +2701,7 @@ int do_vmi_munmap(struct vma_iterator *vmi, struct mm_struct *mm, struct vm_area_struct *vma; if (gmem_is_enabled()) { - vma = find_vma(mm, start); + vma = find_vma_intersection(mm, start, start + len); if (!vma) return 0; if (vma_is_peer_shared(vma)) { -- 2.25.1