---

yaml --- r: 372935 b: refs/heads/master c: c58b0df h: refs/heads/master i: 372933: 4e86f8b 372931: 7ee5790 372927: 1208329 v: v3
git-mirror · Apr 26, 2013 · 3eed976 · 3eed976
1 parent be3ad69
commit 3eed976
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Showing 4 changed files with 10 additions and 9 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 47aa8b6cbcb839efe2edaa5b50fee21df115d37b
+refs/heads/master: c58b0df12a6b5c497637db0676effd00e1fbab13
diff --git a/trunk/init/Kconfig b/trunk/init/Kconfig
@@ -306,7 +306,7 @@ choice
 # Kind of a stub config for the pure tick based cputime accounting
 config TICK_CPU_ACCOUNTING
 	bool "Simple tick based cputime accounting"
-	depends on !S390
+	depends on !S390 && !NO_HZ_FULL
 	help
 	  This is the basic tick based cputime accounting that maintains
 	  statistics about user, system and idle time spent on per jiffies
@@ -316,7 +316,7 @@ config TICK_CPU_ACCOUNTING
 
 config VIRT_CPU_ACCOUNTING_NATIVE
 	bool "Deterministic task and CPU time accounting"
-	depends on HAVE_VIRT_CPU_ACCOUNTING
+	depends on HAVE_VIRT_CPU_ACCOUNTING && !NO_HZ_FULL
 	select VIRT_CPU_ACCOUNTING
 	help
 	  Select this option to enable more accurate task and CPU time
@@ -346,7 +346,7 @@ config VIRT_CPU_ACCOUNTING_GEN
 
 config IRQ_TIME_ACCOUNTING
 	bool "Fine granularity task level IRQ time accounting"
-	depends on HAVE_IRQ_TIME_ACCOUNTING
+	depends on HAVE_IRQ_TIME_ACCOUNTING && !NO_HZ_FULL
 	help
 	  Select this option to enable fine granularity task irq time
 	  accounting. This is done by reading a timestamp on each

diff --git a/trunk/kernel/time/Kconfig b/trunk/kernel/time/Kconfig
@@ -104,11 +104,13 @@ config NO_HZ_FULL
 	depends on SMP
 	# RCU_USER_QS dependency
 	depends on HAVE_CONTEXT_TRACKING
-	depends on VIRT_CPU_ACCOUNTING_GEN
+	# VIRT_CPU_ACCOUNTING_GEN dependency
+	depends on 64BIT
 	select NO_HZ_COMMON
 	select RCU_USER_QS
 	select RCU_NOCB_CPU
 	select RCU_NOCB_CPU_ALL
+	select VIRT_CPU_ACCOUNTING_GEN
 	select CONTEXT_TRACKING_FORCE
 	select IRQ_WORK
 	help

diff --git a/trunk/kernel/time/tick-sched.c b/trunk/kernel/time/tick-sched.c
@@ -565,12 +565,11 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
 			delta_jiffies = rcu_delta_jiffies;
 		}
 	}
-
 	/*
-	 * Do not stop the tick, if we are only one off (or less)
-	 * or if the cpu is required for RCU:
+	 * Do not stop the tick, if we are only one off
+	 * or if the cpu is required for rcu
 	 */
-	if (!ts->tick_stopped && delta_jiffies <= 1)
+	if (!ts->tick_stopped && delta_jiffies == 1)
 		goto out;
 
 	/* Schedule the tick, if we are at least one jiffie off */