[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>
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index ca88274..4b0d153 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 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 @@
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 @@
sn_hwperf_salheap = NULL;
sn_hwperf_obj_cnt = 0;
}
- up(&sn_hwperf_init_mutex);
+ mutex_unlock(&sn_hwperf_init_mutex);
return e;
}