diff options
| author | Jes Sorensen <jes@sgi.com> | 2006-01-19 10:46:52 +0300 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2006-01-19 22:17:56 +0300 |
| commit | 60f1c4443c4d391d8dfbe709f13296067b6c8021 (patch) | |
| tree | d8c65c092fa1af315c994d9f6001c89999e22e20 | |
| parent | 92ff2ecd0deddc4c5fb2140d5861d0ddd50e9e57 (diff) | |
| download | linux-60f1c4443c4d391d8dfbe709f13296067b6c8021.tar.xz | |
[IA64] sem2mutex: arch/ia64/kernel/perfmon.c
Migrate perfmon from using an old semaphore to a completion handler.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
| -rw-r--r-- | arch/ia64/kernel/perfmon.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 2ea4b39efffa..9c5194b385da 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -40,6 +40,7 @@ #include <linux/bitops.h> #include <linux/capability.h> #include <linux/rcupdate.h> +#include <linux/completion.h> #include <asm/errno.h> #include <asm/intrinsics.h> @@ -286,7 +287,7 @@ typedef struct pfm_context { unsigned long ctx_ovfl_regs[4]; /* which registers overflowed (notification) */ - struct semaphore ctx_restart_sem; /* use for blocking notification mode */ + struct completion ctx_restart_done; /* use for blocking notification mode */ unsigned long ctx_used_pmds[4]; /* bitmask of PMD used */ unsigned long ctx_all_pmds[4]; /* bitmask of all accessible PMDs */ @@ -1991,7 +1992,7 @@ pfm_close(struct inode *inode, struct file *filp) /* * force task to wake up from MASKED state */ - up(&ctx->ctx_restart_sem); + complete(&ctx->ctx_restart_done); DPRINT(("waking up ctx_state=%d\n", state)); @@ -2706,7 +2707,7 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg /* * init restart semaphore to locked */ - sema_init(&ctx->ctx_restart_sem, 0); + init_completion(&ctx->ctx_restart_done); /* * activation is used in SMP only @@ -3687,7 +3688,7 @@ pfm_restart(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) */ if (CTX_OVFL_NOBLOCK(ctx) == 0 && state == PFM_CTX_MASKED) { DPRINT(("unblocking [%d] \n", task->pid)); - up(&ctx->ctx_restart_sem); + complete(&ctx->ctx_restart_done); } else { DPRINT(("[%d] armed exit trap\n", task->pid)); @@ -5089,7 +5090,7 @@ pfm_handle_work(void) * may go through without blocking on SMP systems * if restart has been received already by the time we call down() */ - ret = down_interruptible(&ctx->ctx_restart_sem); + ret = wait_for_completion_interruptible(&ctx->ctx_restart_done); DPRINT(("after block sleeping ret=%d\n", ret)); |