From c5bfece2d6129131b4ade985e63bc35ddf5868d4 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Fri, 12 Apr 2013 16:45:34 +0200 Subject: 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 Signed-off-by: Frederic Weisbecker Cc: Chris Metcalf Cc: Christoph Lameter Cc: Geoff Levand Cc: Gilad Ben Yossef Cc: Hakan Akkan Cc: Ingo Molnar Cc: Kevin Hilman Cc: Li Zhong Cc: Paul E. McKenney Cc: Paul Gortmaker Cc: Peter Zijlstra Cc: Steven Rostedt Cc: Thomas Gleixner --- kernel/time/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'kernel/time/Kconfig') diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig index cbe64be17d1f..4a17b5069466 100644 --- a/kernel/time/Kconfig +++ b/kernel/time/Kconfig @@ -96,7 +96,7 @@ config NO_HZ_IDLE Most of the time you want to say Y here. -config NO_HZ_EXTENDED +config NO_HZ_FULL bool "Full dynticks system (tickless single task)" # NO_HZ_COMMON dependency depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS @@ -115,7 +115,7 @@ config NO_HZ_EXTENDED task on the CPU. Chances for running tickless are maximized when the task mostly runs in userspace and has few kernel activity. - You need to fill up the nohz_extended boot parameter with the + You need to fill up the nohz_full boot parameter with the desired range of dynticks CPUs. This is implemented at the expense of some overhead in user <-> kernel -- cgit v1.2.1