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| author | Daniel Walker <dwalker@mvista.com> | 2008-01-10 20:31:51 -0800 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-02-04 15:39:02 -0800 |
| commit | 0245583ab454ba56131921e26ad966b56bcc0a5b (patch) | |
| tree | 3d0e0ca3c98b5acb08182294c354212b05429ec4 /arch/ia64 | |
| parent | acffc84ad9c1c8a79b8c1d6b9f4f530f37cba9ab (diff) | |
| download | linux-stable-0245583ab454ba56131921e26ad966b56bcc0a5b.tar.gz linux-stable-0245583ab454ba56131921e26ad966b56bcc0a5b.tar.bz2 linux-stable-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.c | 9 |
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; } |