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authorLinus Torvalds <torvalds@linux-foundation.org>2017-12-31 12:27:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-12-31 12:27:19 -0800
commit4c470317f91e5e684201f21e237fe444ed47c18c (patch)
tree12c0e65d7927b825e26f4b960fb8fe56e6c916f9 /init
parente7c632fc479a8ac28da19252d44b0bd90a2638f6 (diff)
parentd94d105329e4a8a874853b5bd854b6587c41adda (diff)
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Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner: "Three patches addressing the fallout of the CPU_ISOLATION changes especially with NO_HZ_FULL plus documentation of boot parameter dependency" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/isolation: Document boot parameters dependency on CONFIG_CPU_ISOLATION=y sched/isolation: Enable CONFIG_CPU_ISOLATION=y by default sched/isolation: Make CONFIG_NO_HZ_FULL select CONFIG_CPU_ISOLATION
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig6
1 files changed, 5 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 2934249fba46..690a381adee0 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -461,10 +461,14 @@ endmenu # "CPU/Task time and stats accounting"
config CPU_ISOLATION
bool "CPU isolation"
+ default y
help
Make sure that CPUs running critical tasks are not disturbed by
any source of "noise" such as unbound workqueues, timers, kthreads...
- Unbound jobs get offloaded to housekeeping CPUs.
+ Unbound jobs get offloaded to housekeeping CPUs. This is driven by
+ the "isolcpus=" boot parameter.
+
+ Say Y if unsure.
source "kernel/rcu/Kconfig"