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Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index c549618c72f0..4119a44e4157 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -526,6 +526,35 @@ config SRCU permits arbitrary sleeping or blocking within RCU read-side critical sections. +config CLASSIC_SRCU + bool "Use v4.11 classic SRCU implementation" + default n + depends on RCU_EXPERT && SRCU + help + This option selects the traditional well-tested classic SRCU + implementation from v4.11, as might be desired for enterprise + Linux distributions. Without this option, the shiny new + Tiny SRCU and Tree SRCU implementations are used instead. + At some point, it is hoped that Tiny SRCU and Tree SRCU + will accumulate enough test time and confidence to allow + Classic SRCU to be dropped entirely. + + Say Y if you need a rock-solid SRCU. + + Say N if you would like help test Tree SRCU. + +config TINY_SRCU + bool + default y if TINY_RCU && !CLASSIC_SRCU + help + This option selects the single-CPU non-preemptible version of SRCU. + +config TREE_SRCU + bool + default y if !TINY_RCU && !CLASSIC_SRCU + help + This option selects the full-fledged version of SRCU. + config TASKS_RCU bool default n |