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authorDaniel Walker <dwalker@mvista.com>2008-01-11 05:31:51 +0100
committerTony Luck <tony.luck@intel.com>2008-02-05 00:39:02 +0100
commit0245583ab454ba56131921e26ad966b56bcc0a5b (patch)
tree3d0e0ca3c98b5acb08182294c354212b05429ec4 /arch/ia64
parent[IA64] generalize attribute of fsyscall_gtod_data (diff)
downloadlinux-0245583ab454ba56131921e26ad966b56bcc0a5b.tar.xz
linux-0245583ab454ba56131921e26ad966b56bcc0a5b.zip
[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>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/sn/kernel/sn2/sn_hwperf.c9
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;
}