Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

[pandora-kernel.git] / fs / aio.c

diff --git a/fs/aio.c b/fs/aio.c
index 3006b5b..250b0a7 100644 (file)
--- 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;