[IA64] sn_hwperf semaphore to mutex

Really simple mutex style semaphore user. The new API is struct mutex which is
what I've converted it to with this change.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index ca882744d753..4b0d1538e7e5 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -33,6 +33,7 @@
 #include <linux/smp_lock.h>
 #include <linux/nodemask.h>
 #include <linux/smp.h>
+#include <linux/mutex.h>
 
 #include <asm/processor.h>
 #include <asm/topology.h>
@@ -50,7 +51,7 @@ static void *sn_hwperf_salheap = NULL;
 static int sn_hwperf_obj_cnt = 0;
 static nasid_t sn_hwperf_master_nasid = INVALID_NASID;
 static int sn_hwperf_init(void);
-static DECLARE_MUTEX(sn_hwperf_init_mutex);
+static DEFINE_MUTEX(sn_hwperf_init_mutex);
 
 #define cnode_possible(n)       ((n) < num_cnodes)
 
@@ -884,10 +885,10 @@ static int sn_hwperf_init(void)
         int e = 0;
 
         /* single threaded, once-only initialization */
-        down(&sn_hwperf_init_mutex);
+        mutex_lock(&sn_hwperf_init_mutex);
 
         if (sn_hwperf_salheap) {
-                up(&sn_hwperf_init_mutex);
+                mutex_unlock(&sn_hwperf_init_mutex);
                 return e;
         }
 
@@ -936,7 +937,7 @@ out:
                 sn_hwperf_salheap = NULL;
                 sn_hwperf_obj_cnt = 0;
         }
-        up(&sn_hwperf_init_mutex);
+        mutex_unlock(&sn_hwperf_init_mutex);
         return e;
 }