summaryrefslogtreecommitdiffstats
path: root/kernel/time
diff options
context:
space:
mode:
authorPaul Gortmaker <paul.gortmaker@windriver.com>2014-02-06 13:36:21 -0500
committerFrederic Weisbecker <fweisbec@gmail.com>2014-02-14 17:59:17 +0100
commitf96a34e27df19335155394a235ea3a096bc52a71 (patch)
treee909f8117b63fff172154fc0e1bb2826780b0c77 /kernel/time
parent8ba14654282ed6bb386d0a2f1ab329bfb293403f (diff)
downloadop-kernel-dev-f96a34e27df19335155394a235ea3a096bc52a71.zip
op-kernel-dev-f96a34e27df19335155394a235ea3a096bc52a71.tar.gz
nohz: ensure users are aware boot CPU is not NO_HZ_FULL
This bit of information is in the Kconfig help text: "Note the boot CPU will still be kept outside the range to handle the timekeeping duty." However neither the variable NO_HZ_FULL_ALL, or the prompt convey this important detail, so lets add it to the prompt to make it more explicitly obvious to the average user. Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1391711781-7466-1-git-send-email-paul.gortmaker@windriver.com Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index 3ce6e8c..f448513 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -124,7 +124,7 @@ config NO_HZ_FULL
endchoice
config NO_HZ_FULL_ALL
- bool "Full dynticks system on all CPUs by default"
+ bool "Full dynticks system on all CPUs by default (except CPU 0)"
depends on NO_HZ_FULL
help
If the user doesn't pass the nohz_full boot option to
OpenPOWER on IntegriCloud