X-Git-Url: https://code.grnet.gr/git/archipelago/blobdiff_plain/164d158628a64c98b49f4b699a5b8740ef30f4ce..2ddecabedce388e321dd00e490e266dc28467902:/xseg/xtypes/xlock.h

diff --git a/xseg/xtypes/xlock.h b/xseg/xtypes/xlock.h
index 54b6258..8b14302 100644
--- a/xseg/xtypes/xlock.h
+++ b/xseg/xtypes/xlock.h
@@ -26,8 +26,14 @@ static inline unsigned long xlock_acquire(struct xlock *lock, unsigned long who)
 	return who;
 }
 
+static inline unsigned long xlock_try_lock(struct xlock *lock, unsigned long who)
+{
+	return __sync_bool_compare_and_swap(&lock->owner, Noone, who);
+}
+
 static inline void xlock_release(struct xlock *lock)
 {
+	BARRIER();
 	lock->owner = Noone;
 }