On Fri, Mar 02, 2018 at 08:44:33PM +0100, Andrey Konovalov wrote: > There are two reasons to use outline instrumentation: > 1. Outline instrumentation reduces the size of the kernel text, and should > be used where this size matters. > 2. Outline instrumentation is less invasive and can be used for debugging > for KASAN developers, when it's not clear whether some issue is caused > by KASAN or by something else. > > For the rest cases inline instrumentation is preferrable, since it's > faster. > > This patch changes the default instrumentation mode to inline. > --- > lib/Kconfig.kasan | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan > index ab34e7d7d3a7..8ea6ae26b4a3 100644 > --- a/lib/Kconfig.kasan > +++ b/lib/Kconfig.kasan > @@ -70,7 +70,7 @@ config KASAN_EXTRA > choice > prompt "Instrumentation type" > depends on KASAN > - default KASAN_OUTLINE > + default KASAN_INLINE Some compilers don't support KASAN_INLINE, but do support KASAN_OUTLINE. IIRC that includes the latest clang release, but I could be wrong. If that's the case, changing the default here does not seem ideal. Thanks, Mark. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
