diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/proc/task_mmu.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index db17f98bc564..a9e45c7a6c59 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -158,8 +158,10 @@ static void seq_print_vma_name(struct seq_file *m, struct vm_area_struct *vma) long pages_pinned; struct page *page; + down_read(¤t->mm->mmap_sem); pages_pinned = get_user_pages(current, mm, page_start_vaddr, 1, 0, 0, &page, NULL); + up_read(¤t->mm->mmap_sem); if (pages_pinned < 1) { seq_puts(m, "<fault>]"); return; |