summaryrefslogtreecommitdiff
path: root/fs/userfaultfd.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/userfaultfd.c')
-rw-r--r--fs/userfaultfd.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index cadcd12a3d35..b0d5897bc4e6 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -854,6 +854,9 @@ wakeup:
__wake_up_locked_key(&ctx->fault_wqh, TASK_NORMAL, &range);
spin_unlock(&ctx->fault_pending_wqh.lock);
+ /* Flush pending events that may still wait on event_wqh */
+ wake_up_all(&ctx->event_wqh);
+
wake_up_poll(&ctx->fd_wqh, POLLHUP);
userfaultfd_ctx_put(ctx);
return 0;
@@ -1597,7 +1600,7 @@ static int userfaultfd_copy(struct userfaultfd_ctx *ctx,
uffdio_copy.len);
mmput(ctx->mm);
} else {
- return -ENOSPC;
+ return -ESRCH;
}
if (unlikely(put_user(ret, &user_uffdio_copy->copy)))
return -EFAULT;
@@ -1643,6 +1646,8 @@ static int userfaultfd_zeropage(struct userfaultfd_ctx *ctx,
ret = mfill_zeropage(ctx->mm, uffdio_zeropage.range.start,
uffdio_zeropage.range.len);
mmput(ctx->mm);
+ } else {
+ return -ESRCH;
}
if (unlikely(put_user(ret, &user_uffdio_zeropage->zeropage)))
return -EFAULT;