raid5: update analysis state for failed stripe

[firefly-linux-kernel-4.4.55.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index 03aa2e6de7a4e90696c003792641d2c3a150cd02..2845623fb58264eec28a8b99b48d4511856e718d 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -454,8 +454,9 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
                tmp->vm_mm = mm;
                if (anon_vma_fork(tmp, mpnt))
                        goto fail_nomem_anon_vma_fork;
-               tmp->vm_flags &= ~VM_LOCKED;
+               tmp->vm_flags &= ~(VM_LOCKED|VM_UFFD_MISSING|VM_UFFD_WP);
                tmp->vm_next = tmp->vm_prev = NULL;
+               tmp->vm_userfaultfd_ctx = NULL_VM_UFFD_CTX;
                file = tmp->vm_file;
                if (file) {
                        struct inode *inode = file_inode(file);
@@ -1148,6 +1149,10 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
        tty_audit_fork(sig);
        sched_autogroup_fork(sig);
 
+#ifdef CONFIG_CGROUPS
+       init_rwsem(&sig->group_rwsem);
+#endif
+
        sig->oom_score_adj = current->signal->oom_score_adj;
        sig->oom_score_adj_min = current->signal->oom_score_adj_min;