diff options
Diffstat (limited to 'init/Kconfig')
-rw-r--r-- | init/Kconfig | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/init/Kconfig b/init/Kconfig index 307499704580..717584064a7e 100644 --- a/init/Kconfig +++ b/init/Kconfig | |||
@@ -666,12 +666,13 @@ config RCU_NOCB_CPU | |||
666 | 666 | ||
667 | This option offloads callback invocation from the set of | 667 | This option offloads callback invocation from the set of |
668 | CPUs specified at boot time by the rcu_nocbs parameter. | 668 | CPUs specified at boot time by the rcu_nocbs parameter. |
669 | For each such CPU, a kthread ("rcuoN") will be created to | 669 | For each such CPU, a kthread ("rcuox/N") will be created to |
670 | invoke callbacks, where the "N" is the CPU being offloaded. | 670 | invoke callbacks, where the "N" is the CPU being offloaded, |
671 | Nothing prevents this kthread from running on the specified | 671 | and where the "x" is "b" for RCU-bh, "p" for RCU-preempt, and |
672 | CPUs, but (1) the kthreads may be preempted between each | 672 | "s" for RCU-sched. Nothing prevents this kthread from running |
673 | callback, and (2) affinity or cgroups can be used to force | 673 | on the specified CPUs, but (1) the kthreads may be preempted |
674 | the kthreads to run on whatever set of CPUs is desired. | 674 | between each callback, and (2) affinity or cgroups can be used |
675 | to force the kthreads to run on whatever set of CPUs is desired. | ||
675 | 676 | ||
676 | Say Y here if you want to help to debug reduced OS jitter. | 677 | Say Y here if you want to help to debug reduced OS jitter. |
677 | Say N here if you are unsure. | 678 | Say N here if you are unsure. |