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-rw-r--r--nptl/ChangeLog5
-rw-r--r--nptl/pthread_mutexattr_settype.c5
2 files changed, 10 insertions, 0 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 7f82b20..d32046e 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,4 +1,9 @@
2013-07-02 Andi Kleen <ak@linux.intel.com>
+
+ * pthread_mutexattr_settype.c (__pthread_mutexattr_settype):
+ Disable elision for PTHREAD_MUTEX_DEFAULT.
+
+2013-07-02 Andi Kleen <ak@linux.intel.com>
Hongjiu Lu <hongjiu.lu@intel.com>
* pthread_mutex_lock.c
diff --git a/nptl/pthread_mutexattr_settype.c b/nptl/pthread_mutexattr_settype.c
index 7b476e9..a85cdcb 100644
--- a/nptl/pthread_mutexattr_settype.c
+++ b/nptl/pthread_mutexattr_settype.c
@@ -30,6 +30,11 @@ __pthread_mutexattr_settype (attr, kind)
if (kind < PTHREAD_MUTEX_NORMAL || kind > PTHREAD_MUTEX_ADAPTIVE_NP)
return EINVAL;
+ /* Cannot distinguish between DEFAULT and NORMAL. So any settype
+ call disables elision for now. */
+ if (kind == PTHREAD_MUTEX_DEFAULT)
+ kind |= PTHREAD_MUTEX_NO_ELISION_NP;
+
iattr = (struct pthread_mutexattr *) attr;
iattr->mutexkind = (iattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_BITS) | kind;