From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,vincenzo.frascino@arm.com,ryabinin.a.a@gmail.com,glider@google.com,elver@google.com,dvyukov@google.com,andreyknvl@gmail.com,paul.heidekrueger@tum.de,akpm@linux-foundation.org
Subject: [merged mm-stable] kasan-default-to-inline-instrumentation.patch removed from -mm tree
Date: Sun, 10 Dec 2023 16:54:28 -0800 [thread overview]
Message-ID: <20231211005428.7EF5FC433C8@smtp.kernel.org> (raw)
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The quilt patch titled
Subject: kasan: default to inline instrumentation
has been removed from the -mm tree. Its filename was
kasan-default-to-inline-instrumentation.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Paul Heidekrüger <paul.heidekrueger@tum.de>
Subject: kasan: default to inline instrumentation
Date: Thu, 9 Nov 2023 15:51:00 +0000
KASan inline instrumentation can yield up to a 2x performance gain at the
cost of a larger binary.
Make inline instrumentation the default, as suggested in the bug report
below.
When an architecture does not support inline instrumentation, it should
set ARCH_DISABLE_KASAN_INLINE, as done by PowerPC, for instance.
Link: https://lkml.kernel.org/r/20231109155101.186028-1-paul.heidekrueger@tum.de
Signed-off-by: Paul Heidekrüger <paul.heidekrueger@tum.de>
Reported-by: Andrey Konovalov <andreyknvl@gmail.com>
Reviewed-by: Marco Elver <elver@google.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=203495
Acked-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
lib/Kconfig.kasan | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/Kconfig.kasan~kasan-default-to-inline-instrumentation
+++ a/lib/Kconfig.kasan
@@ -134,7 +134,7 @@ endchoice
choice
prompt "Instrumentation type"
depends on KASAN_GENERIC || KASAN_SW_TAGS
- default KASAN_OUTLINE
+ default KASAN_INLINE if !ARCH_DISABLE_KASAN_INLINE
config KASAN_OUTLINE
bool "Outline instrumentation"
_
Patches currently in -mm which might be from paul.heidekrueger@tum.de are
reply other threads:[~2023-12-11 0:54 UTC|newest]
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