svn commit: r221740 - in head/sys/cddl/dev/dtrace: amd64 i386

Andriy Gapon avg at FreeBSD.org
Tue May 10 15:05:28 UTC 2011


Author: avg
Date: Tue May 10 15:05:27 2011
New Revision: 221740
URL: http://svn.freebsd.org/changeset/base/221740

Log:
  dtrace: remove unused code
  
  Which is also useless, IMO.
  
  MFC after:	5 days

Modified:
  head/sys/cddl/dev/dtrace/amd64/dtrace_subr.c
  head/sys/cddl/dev/dtrace/i386/dtrace_subr.c

Modified: head/sys/cddl/dev/dtrace/amd64/dtrace_subr.c
==============================================================================
--- head/sys/cddl/dev/dtrace/amd64/dtrace_subr.c	Tue May 10 14:21:44 2011	(r221739)
+++ head/sys/cddl/dev/dtrace/amd64/dtrace_subr.c	Tue May 10 15:05:27 2011	(r221740)
@@ -359,26 +359,6 @@ static uint64_t	nsec_scale;
 #define SCALE_SHIFT	28
 
 static void
-dtrace_gethrtime_init_sync(void *arg)
-{
-#ifdef CHECK_SYNC
-	/*
-	 * Delay this function from returning on one
-	 * of the CPUs to check that the synchronisation
-	 * works.
-	 */
-	uintptr_t cpu = (uintptr_t) arg;
-
-	if (cpu == curcpu) {
-		int i;
-		for (i = 0; i < 1000000000; i++)
-			tgt_cpu_tsc = rdtsc();
-		tgt_cpu_tsc = 0;
-	}
-#endif
-}
-
-static void
 dtrace_gethrtime_init_cpu(void *arg)
 {
 	uintptr_t cpu = (uintptr_t) arg;
@@ -434,7 +414,7 @@ dtrace_gethrtime_init(void *arg)
 		pc = pcpu_find(i);
 		map = PCPU_GET(cpumask) | pc->pc_cpumask;
 
-		smp_rendezvous_cpus(map, dtrace_gethrtime_init_sync,
+		smp_rendezvous_cpus(map, NULL,
 		    dtrace_gethrtime_init_cpu,
 		    smp_no_rendevous_barrier, (void *)(uintptr_t) i);
 

Modified: head/sys/cddl/dev/dtrace/i386/dtrace_subr.c
==============================================================================
--- head/sys/cddl/dev/dtrace/i386/dtrace_subr.c	Tue May 10 14:21:44 2011	(r221739)
+++ head/sys/cddl/dev/dtrace/i386/dtrace_subr.c	Tue May 10 15:05:27 2011	(r221740)
@@ -359,26 +359,6 @@ static uint64_t	nsec_scale;
 #define SCALE_SHIFT	28
 
 static void
-dtrace_gethrtime_init_sync(void *arg)
-{
-#ifdef CHECK_SYNC
-	/*
-	 * Delay this function from returning on one
-	 * of the CPUs to check that the synchronisation
-	 * works.
-	 */
-	uintptr_t cpu = (uintptr_t) arg;
-
-	if (cpu == curcpu) {
-		int i;
-		for (i = 0; i < 1000000000; i++)
-			tgt_cpu_tsc = rdtsc();
-		tgt_cpu_tsc = 0;
-	}
-#endif
-}
-
-static void
 dtrace_gethrtime_init_cpu(void *arg)
 {
 	uintptr_t cpu = (uintptr_t) arg;
@@ -434,7 +414,7 @@ dtrace_gethrtime_init(void *arg)
 		pc = pcpu_find(i);
 		map = PCPU_GET(cpumask) | pc->pc_cpumask;
 
-		smp_rendezvous_cpus(map, dtrace_gethrtime_init_sync,
+		smp_rendezvous_cpus(map, NULL,
 		    dtrace_gethrtime_init_cpu,
 		    smp_no_rendevous_barrier, (void *)(uintptr_t) i);
 


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