author: Mike Rapoport <rppt@linux.vnet.ibm.com> 2017-03-09 16:17:09 -0800
committer: Linus Torvalds <torvalds@linux-foundation.org> 2017-03-09 17:01:10 -0800
commit: 7eb76d457fd758d396bc2e65cb0ace5aae614149
parent: bfc7228b9a9647e1c353e50b40297a2929801759
Commit Summary:
Diffstat:
1 file changed, 7 insertions, 0 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index dd48052e086f..2407249998c3 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -549,6 +549,15 @@ static void userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx,
if (ACCESS_ONCE(ctx->released) ||
fatal_signal_pending(current)) {
__remove_wait_queue(&ctx->event_wqh, &ewq->wq);
+ if (ewq->msg.event == UFFD_EVENT_FORK) {
+ struct userfaultfd_ctx *new;
+
+ new = (struct userfaultfd_ctx *)
+ (unsigned long)
+ ewq->msg.arg.reserved.reserved1;
+
+ userfaultfd_ctx_put(new);
+ }
break;
}