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authorFrederic Weisbecker <fweisbec@gmail.com>2013-04-12 16:45:34 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2013-04-15 19:58:17 +0200
commitc5bfece2d6129131b4ade985e63bc35ddf5868d4 (patch)
tree65b7f1c3e9ad5dd45375ccdc1dab187ba968cf59 /kernel/sched
parent0644ca5c774f1a7033bfc83c7ed0660f74f28b56 (diff)
downloadlinaro-lsk-c5bfece2d6129131b4ade985e63bc35ddf5868d4.tar.gz
nohz: Switch from "extended nohz" to "full nohz" based naming
"Extended nohz" was used as a naming base for the full dynticks API and Kconfig symbols. It reflects the fact the system tries to stop the tick in more places than just idle. But that "extended" name is a bit opaque and vague. Rename it to "full" makes it clearer what the system tries to do under this config: try to shutdown the tick anytime it can. The various constraints that prevent that to happen shouldn't be considered as fundamental properties of this feature but rather technical issues that may be solved in the future. Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Christoph Lameter <cl@linux.com> Cc: Geoff Levand <geoff@infradead.org> Cc: Gilad Ben Yossef <gilad@benyossef.com> Cc: Hakan Akkan <hakanakkan@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kevin Hilman <khilman@linaro.org> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/sched')
-rw-r--r--kernel/sched/core.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 9bb397da63d..0f0a5b3fd62 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -617,9 +617,9 @@ static void wake_up_idle_cpu(int cpu)
smp_send_reschedule(cpu);
}
-static bool wake_up_extended_nohz_cpu(int cpu)
+static bool wake_up_full_nohz_cpu(int cpu)
{
- if (tick_nohz_extended_cpu(cpu)) {
+ if (tick_nohz_full_cpu(cpu)) {
if (cpu != smp_processor_id() ||
tick_nohz_tick_stopped())
smp_send_reschedule(cpu);
@@ -631,7 +631,7 @@ static bool wake_up_extended_nohz_cpu(int cpu)
void wake_up_nohz_cpu(int cpu)
{
- if (!wake_up_extended_nohz_cpu(cpu))
+ if (!wake_up_full_nohz_cpu(cpu))
wake_up_idle_cpu(cpu);
}