From: Dmitry Vyukov <dvyukov@google.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Mark Rutland <mark.rutland@arm.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Ingo Molnar <mingo@redhat.com>, Will Deacon <will.deacon@arm.com>,
Andrew Morton <akpm@linux-foundation.org>,
kasan-dev <kasan-dev@googlegroups.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"x86@kernel.org" <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH 2/3] asm-generic, x86: wrap atomic operations
Date: Tue, 28 Mar 2017 18:29:39 +0200 [thread overview]
Message-ID: <CACT4Y+ZA51-WnVUUr2jXZCDxkrKA_RpQkMf58niiu5FvBrXZ4w@mail.gmail.com> (raw)
In-Reply-To: <20170328101532.GA13819@gmail.com>
On Tue, Mar 28, 2017 at 12:15 PM, Ingo Molnar <mingo@kernel.org> wrote:
>
> * Dmitry Vyukov <dvyukov@google.com> wrote:
>
>> > So I'm not convinced that it's true in this case.
>> >
>> > Could we see the C version and compare? I could be wrong about it all.
>>
>> Here it is (without instrumentation):
>> https://gist.github.com/dvyukov/e33d580f701019e0cd99429054ff1f9a
>
> Could you please include the full patch so that it can be discussed via email and
> such?
Mailed the whole series.
>> Instrumentation will add for each function:
>>
>> static __always_inline void atomic64_set(atomic64_t *v, long long i)
>> {
>> + kasan_check_write(v, sizeof(*v));
>> arch_atomic64_set(v, i);
>> }
>
> That in itself looks sensible and readable.
>
> Thanks,
>
> Ingo
next prev parent reply other threads:[~2017-03-28 16:30 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-14 19:24 [PATCH 0/3] x86, kasan: add KASAN checks to atomic operations Dmitry Vyukov
2017-03-14 19:24 ` [PATCH 1/3] kasan: allow kasan_check_read/write() to accept pointers to volatiles Dmitry Vyukov
2017-03-14 19:24 ` [PATCH 2/3] asm-generic, x86: wrap atomic operations Dmitry Vyukov
2017-03-20 16:41 ` Andrey Ryabinin
2017-03-20 17:17 ` Mark Rutland
2017-03-21 9:25 ` Andrey Ryabinin
2017-03-21 10:41 ` Mark Rutland
2017-03-21 18:06 ` Dmitry Vyukov
2017-03-21 21:20 ` Arnd Bergmann
2017-03-22 10:42 ` Dmitry Vyukov
2017-03-22 11:30 ` Arnd Bergmann
2017-03-22 12:14 ` Dmitry Vyukov
2017-03-22 12:48 ` Arnd Bergmann
2017-03-24 6:52 ` Ingo Molnar
2017-03-24 7:14 ` Dmitry Vyukov
2017-03-24 8:39 ` Dmitry Vyukov
2017-03-24 10:57 ` Ingo Molnar
2017-03-24 12:46 ` Dmitry Vyukov
2017-03-28 7:52 ` Ingo Molnar
2017-03-28 9:27 ` Peter Zijlstra
2017-03-28 9:46 ` Dmitry Vyukov
2017-03-28 9:51 ` Ingo Molnar
2017-03-28 9:56 ` Dmitry Vyukov
2017-03-28 10:15 ` Ingo Molnar
2017-03-28 16:29 ` Dmitry Vyukov [this message]
2017-03-14 19:24 ` [PATCH 3/3] asm-generic: add KASAN instrumentation to " Dmitry Vyukov
2017-03-30 22:30 ` [PATCH 0/3] x86, kasan: add KASAN checks " Andrew Morton
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