From: xie xingguo <xie.xingguo@zte.com.cn>
Date: Wed, 3 Feb 2016 02:32:58 +0000 (+0800)
Subject: KernelDevice: use standard errno for better tracing
X-Git-Tag: v10.0.4~32^2~4
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=4d535f099a1e7bd4dae0479e011ee57a6cf322d6;p=ceph.git

KernelDevice: use standard errno for better tracing

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
---

diff --git a/src/os/bluestore/KernelDevice.cc b/src/os/bluestore/KernelDevice.cc
index 160800b8d0bf..c0391a775095 100644
--- a/src/os/bluestore/KernelDevice.cc
+++ b/src/os/bluestore/KernelDevice.cc
@@ -401,6 +401,7 @@ int KernelDevice::aio_write(
     int r = ::pwritev(buffered ? fd_buffered : fd_direct,
 		      &iov[0], iov.size(), off);
     if (r < 0) {
+      r = -errno;
       derr << __func__ << " pwritev error: " << cpp_strerror(r) << dendl;
       return r;
     }