From: liuchang0812 <liuchang0812@gmail.com>
Date: Tue, 7 Mar 2017 06:28:21 +0000 (+0800)
Subject: msg/async: fix crash that writing char to nonblock-fd gets EAGAIN in EventCenter... 
X-Git-Tag: v12.0.1~38^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=55884c5875b7ed2bb2e525bb13fbb7e849717811;p=ceph.git

msg/async: fix crash that writing char to nonblock-fd gets EAGAIN in EventCenter::wakeup

Signed-off-by: liuchang0812 <liuchang0812@gmail.com>
---

diff --git a/src/msg/async/Event.cc b/src/msg/async/Event.cc
index eee29fc51b70..45d6eb108435 100644
--- a/src/msg/async/Event.cc
+++ b/src/msg/async/Event.cc
@@ -323,8 +323,10 @@ void EventCenter::wakeup()
   // wake up "event_wait"
   int n = write(notify_send_fd, &buf, sizeof(buf));
   if (n < 0) {
-    ldout(cct, 1) << __func__ << " write notify pipe failed: " << cpp_strerror(errno) << dendl;
-    ceph_abort();
+    if (errno != EAGAIN) {
+      ldout(cct, 1) << __func__ << " write notify pipe failed: " << cpp_strerror(errno) << dendl;
+      ceph_abort();
+    }
   }
 }