Messages in this thread |  | | | Date | Mon, 17 Sep 2007 13:55:17 -0700 | | From | Randy Dunlap <> | | Subject | Re: [patch 2/7] Immediate Values - Kconfig menu in EMBEDDED |
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On Mon, 17 Sep 2007 14:42:26 -0400 Mathieu Desnoyers wrote:
> init/Kconfig | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > Index: linux-2.6-lttng/init/Kconfig > =================================================================== > --- linux-2.6-lttng.orig/init/Kconfig 2007-09-04 11:53:59.000000000 -0400 > +++ linux-2.6-lttng/init/Kconfig 2007-09-04 12:12:03.000000000 -0400 > @@ -407,6 +407,17 @@ config CC_OPTIMIZE_FOR_SIZE > config SYSCTL > bool > > +config IMMEDIATE > + default y if !DISABLE_IMMEDIATE > + depends on X86_32 || PPC || PPC64 > + bool > + help > + Immediate values are used as read mostly variables that are rarely
read-mostly
> + updated. They use code patching to modify the values inscribed in the > + instruction stream. It provides a way to save precious cache lines
They .... (then) It ... so choose one of the other. I think I prefer "They". > + that would otherwise have to be used by these variables. Can be > + disabled through the EMBEDDED menu. > + > menuconfig EMBEDDED > bool "Configure standard kernel features (for small systems)" > help
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