Merge remote branch 'origin/master' of /home/airlied/kernel//linux-2.6 into drm-core-next

1 files changed, 12 insertions, 1 deletions

diff --git a/fs/aio.c b/fs/aio.c
index 3006b5bc33d6..250b0a73c8a8 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -712,8 +712,16 @@ static ssize_t aio_run_iocb(struct kiocb *iocb)
          */
         ret = retry(iocb);
 
-        if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED)
+        if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) {
+                /*
+                 * There's no easy way to restart the syscall since other AIO's
+                 * may be already running. Just fail this IO with EINTR.
+                 */
+                if (unlikely(ret == -ERESTARTSYS || ret == -ERESTARTNOINTR ||
+                             ret == -ERESTARTNOHAND || ret == -ERESTART_RESTARTBLOCK))
+                        ret = -EINTR;
                 aio_complete(iocb, ret, 0);
+        }
 out:
         spin_lock_irq(&ctx->ctx_lock);
 
@@ -1659,6 +1667,9 @@ long do_io_submit(aio_context_t ctx_id, long nr,
         if (unlikely(nr < 0))
                 return -EINVAL;
 
+        if (unlikely(nr > LONG_MAX/sizeof(*iocbpp)))
+                nr = LONG_MAX/sizeof(*iocbpp);
+
         if (unlikely(!access_ok(VERIFY_READ, iocbpp, (nr*sizeof(*iocbpp)))))
                 return -EFAULT;