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authorRich Felker <dalias@aerifal.cx>2011-03-17 12:21:32 -0400
committerRich Felker <dalias@aerifal.cx>2011-03-17 12:21:32 -0400
commitb1c43161c2b37e35eae60fa61621a24a5d820d83 (patch)
treeb6c532f959850f42ad219d87b721a587973c6654 /src/thread/pthread_mutex_unlock.c
parente914f8b7ec79f622fa3b017af434642f61d45ce8 (diff)
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unify lock and owner fields of mutex structure
this change is necessary to free up one slot in the mutex structure so that we can use doubly-linked lists in the implementation of robust mutexes.
Diffstat (limited to 'src/thread/pthread_mutex_unlock.c')
-rw-r--r--src/thread/pthread_mutex_unlock.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/src/thread/pthread_mutex_unlock.c b/src/thread/pthread_mutex_unlock.c
index 39cea4b6..61a2b947 100644
--- a/src/thread/pthread_mutex_unlock.c
+++ b/src/thread/pthread_mutex_unlock.c
@@ -3,13 +3,12 @@
int pthread_mutex_unlock(pthread_mutex_t *m)
{
if (m->_m_type != PTHREAD_MUTEX_NORMAL) {
- if (m->_m_owner != pthread_self()->tid)
+ if (m->_m_lock != pthread_self()->tid)
return EPERM;
if (m->_m_type == PTHREAD_MUTEX_RECURSIVE && --m->_m_count)
return 0;
}
- m->_m_owner = 0;
m->_m_lock = 0;
if (m->_m_waiters) __wake(&m->_m_lock, 1, 0);
return 0;