From 566c8728b602a2da12bbd64ded02197c85dd1be4 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Mon, 28 Sep 2015 21:31:23 -0400
Subject: [PATCH] os/fs: fix aio submit method

continue in a do while(false) will always eval false and break
out.  To repeat, we need while (true) and an explicit break.

Reported-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/os/fs/FS.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/os/fs/FS.h b/src/os/fs/FS.h
index c6601635a06..941fd1411b8 100644
--- a/src/os/fs/FS.h
+++ b/src/os/fs/FS.h
@@ -94,7 +94,7 @@ public:
     int submit(aio_t &aio, int *retries) {
       int attempts = 10;
       iocb *piocb = &aio.iocb;
-      do {
+      while (true) {
 	int r = io_submit(ctx, 1, &piocb);
 	if (r < 0) {
 	  if (r == -EAGAIN && attempts-- > 0) {
@@ -105,7 +105,8 @@ public:
 	  return r;
 	}
 	assert(r == 1);
-      } while (false);
+	break;
+      }
       return 0;
     }