From: Pan Liu <wanjun.lp@alibaba-inc.com>
Date: Sat, 8 Jul 2017 05:49:28 +0000 (+0800)
Subject: common/Mutex.cc: fixed the error in comment
X-Git-Tag: v12.1.1~108^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F16214%2Fhead;p=ceph.git

common/Mutex.cc: fixed the error in comment

Signed-off-by: Pan Liu <wanjun.lp@alibaba-inc.com>
---

diff --git a/src/common/Mutex.cc b/src/common/Mutex.cc
index 6ac022c8af05..1bb588902d00 100644
--- a/src/common/Mutex.cc
+++ b/src/common/Mutex.cc
@@ -61,10 +61,11 @@ Mutex::Mutex(const std::string &n, bool r, bool ld,
       _register();
   }
   else {
-    // If the mutex type is PTHREAD_MUTEX_NORMAL, deadlock detection
-    // shall not be provided. Attempting to relock the mutex causes
-    // deadlock. If a thread attempts to unlock a mutex that  it  has not
-    // locked or a mutex which is unlocked, undefined behavior results.
+    // If the mutex type is PTHREAD_MUTEX_DEFAULT, attempting to recursively
+    // lock the mutex results in undefined behavior. Attempting to unlock the
+    // mutex if it was not locked by the calling thread results in undefined
+    // behavior. Attempting to unlock the mutex if it is not locked results in
+    // undefined behavior.
     pthread_mutex_init(&_m, NULL);
   }
 }