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| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-11-09 17:17:09 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-11-09 17:17:09 +1100 |
| commit | ebb02831501849dfe7d9299763647bdf13d7c50b (patch) | |
| tree | 18c44134a161b0f35427d6a1fce4e8aa9216a50d /init | |
| parent | dfe7260e037bccff1b5ffe1a37a4beadfc0ab75f (diff) | |
| parent | 13655f0f015f02f5fad216c70be58dc41edf0215 (diff) | |
Merge remote branch 'tip/auto-latest'
Conflicts:
arch/x86/kernel/kgdb.c
Diffstat (limited to 'init')
| -rw-r--r-- | init/Kconfig | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/init/Kconfig b/init/Kconfig index 9047f8f03479..f6ae79ffefa8 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -338,6 +338,15 @@ config TREE_PREEMPT_RCU is also required. It also scales down nicely to smaller systems. +config TINY_RCU + bool "UP-only small-memory-footprint RCU" + depends on !SMP + help + This option selects the RCU implementation that is + designed for UP systems from which real-time response + is not required. This option greatly reduces the + memory footprint of RCU. + endchoice config RCU_TRACE @@ -941,7 +950,7 @@ config PERF_EVENTS Enable kernel support for various performance events provided by software and hardware. - Software events are supported either build-in or via the + Software events are supported either built-in or via the use of generic tracepoints. Most modern CPUs support performance events via performance @@ -953,7 +962,7 @@ config PERF_EVENTS used to profile the code that runs on that CPU. The Linux Performance Event subsystem provides an abstraction of - these software and hardware cevent apabilities, available via a + these software and hardware event capabilities, available via a system call and used by the "perf" utility in tools/perf/. It provides per task and per CPU counters, and it provides event capabilities on top of those. |