From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Andrey Konovalov <andreyknvl@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Dmitry Vyukov <dvyukov@google.com>,
Alexander Potapenko <glider@google.com>,
Marco Elver <elver@google.com>, Will Deacon <will.deacon@arm.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Peter Collingbourne <pcc@google.com>,
Evgenii Stepanov <eugenis@google.com>,
Branislav Rankov <Branislav.Rankov@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 10/12] arm64: kasan: simplify and inline MTE functions
Date: Thu, 4 Feb 2021 12:39:08 +0000 [thread overview]
Message-ID: <f87043c9-6126-c87b-a5c6-b48f28556b92@arm.com> (raw)
In-Reply-To: <20210201144407.dd603ec4edcd589643654057@linux-foundation.org>
Hi Andrew,
On 2/1/21 10:44 PM, Andrew Morton wrote:
> On Mon, 1 Feb 2021 20:43:34 +0100 Andrey Konovalov <andreyknvl@google.com> wrote:
>
>> This change provides a simpler implementation of mte_get_mem_tag(),
>> mte_get_random_tag(), and mte_set_mem_tag_range().
>>
>> Simplifications include removing system_supports_mte() checks as these
>> functions are onlye called from KASAN runtime that had already checked
>> system_supports_mte(). Besides that, size and address alignment checks
>> are removed from mte_set_mem_tag_range(), as KASAN now does those.
>>
>> This change also moves these functions into the asm/mte-kasan.h header
>> and implements mte_set_mem_tag_range() via inline assembly to avoid
>> unnecessary functions calls.
>>
>> Co-developed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
>> Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
>
> Co-developed-by requires a Signed-off-by: as well. Vincenzo, please
> send us one?
>
>
I added my Signed-off-by to the patch.
--
Regards,
Vincenzo
next prev parent reply other threads:[~2021-02-04 12:35 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 19:43 [PATCH 00/12] kasan: optimizations and fixes for HW_TAGS Andrey Konovalov
2021-02-01 19:43 ` [PATCH 01/12] kasan, mm: don't save alloc stacks twice Andrey Konovalov
2021-02-02 16:06 ` Marco Elver
2021-02-02 18:01 ` Andrey Konovalov
2021-02-02 18:40 ` Marco Elver
2021-02-01 19:43 ` [PATCH 02/12] kasan, mm: optimize kmalloc poisoning Andrey Konovalov
2021-02-02 16:25 ` Marco Elver
2021-02-02 17:15 ` Andrey Konovalov
2021-02-02 17:39 ` Marco Elver
2021-02-01 19:43 ` [PATCH 03/12] kasan: optimize large " Andrey Konovalov
2021-02-02 16:57 ` Marco Elver
2021-02-01 19:43 ` [PATCH 04/12] kasan: clean up setting free info in kasan_slab_free Andrey Konovalov
2021-02-02 17:03 ` Marco Elver
2021-02-01 19:43 ` [PATCH 05/12] kasan: unify large kfree checks Andrey Konovalov
2021-02-03 12:13 ` Marco Elver
2021-02-01 19:43 ` [PATCH 06/12] kasan: rework krealloc tests Andrey Konovalov
2021-02-03 14:48 ` Marco Elver
2021-02-01 19:43 ` [PATCH 07/12] kasan, mm: remove krealloc side-effect Andrey Konovalov
2021-02-03 15:10 ` Marco Elver
2021-02-01 19:43 ` [PATCH 08/12] kasan, mm: optimize krealloc poisoning Andrey Konovalov
2021-02-03 14:34 ` Marco Elver
2021-02-01 19:43 ` [PATCH 09/12] kasan: ensure poisoning size alignment Andrey Konovalov
2021-02-03 15:31 ` Marco Elver
2021-02-01 19:43 ` [PATCH 10/12] arm64: kasan: simplify and inline MTE functions Andrey Konovalov
2021-02-01 22:44 ` Andrew Morton
2021-02-04 12:39 ` Vincenzo Frascino [this message]
2021-02-02 15:42 ` Catalin Marinas
2021-02-02 18:04 ` Andrey Konovalov
2021-02-04 12:37 ` Vincenzo Frascino
2021-02-01 19:43 ` [PATCH 11/12] kasan: always inline HW_TAGS helper functions Andrey Konovalov
2021-02-03 15:51 ` Marco Elver
2021-02-01 19:43 ` [PATCH 12/12] arm64: kasan: export MTE symbols for KASAN tests Andrey Konovalov
2021-02-02 10:46 ` Will Deacon
2021-02-02 13:42 ` Andrey Konovalov
2021-02-02 15:43 ` Catalin Marinas
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