From: Dmitry Vyukov <dvyukov@google.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Will Deacon <will.deacon@arm.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
kasan-dev <kasan-dev@googlegroups.com>,
LKML <linux-kernel@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 4/8] asm-generic: add atomic-instrumented.h
Date: Wed, 29 Mar 2017 10:21:16 +0200 [thread overview]
Message-ID: <CACT4Y+bawF=f_VNoYzfqpwT7FV7+iYA0QW+4NXZCdSh=vDgcMg@mail.gmail.com> (raw)
In-Reply-To: <20170328213513.GB12803@bombadil.infradead.org>
On Tue, Mar 28, 2017 at 11:35 PM, Matthew Wilcox <willy@infradead.org> wrote:
> On Tue, Mar 28, 2017 at 06:15:41PM +0200, Dmitry Vyukov wrote:
>> The new header allows to wrap per-arch atomic operations
>> and add common functionality to all of them.
>
> Why a new header instead of putting this in linux/atomic.h?
Only a subset of archs include this header. If we pre-include it for
all arches without changing their atomic.h, we will break build. We of
course play some tricks with preprocessor.
It's also large enough to put into a separate header IMO.
Also a reasonable question: why put it into linux/atomic.h instead of
a new header? :)
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next prev parent reply other threads:[~2017-03-29 8:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1490717337.git.dvyukov@google.com>
2017-03-28 16:15 ` [PATCH 3/8] x86: use long long for 64-bit atomic ops Dmitry Vyukov
2017-03-28 21:32 ` Matthew Wilcox
2017-05-26 19:29 ` Dmitry Vyukov
2017-03-28 16:15 ` [PATCH 4/8] asm-generic: add atomic-instrumented.h Dmitry Vyukov
2017-03-28 21:35 ` Matthew Wilcox
2017-03-29 8:21 ` Dmitry Vyukov [this message]
2017-03-29 13:27 ` Mark Rutland
2017-03-29 17:15 ` Mark Rutland
2017-03-30 6:43 ` Ingo Molnar
2017-03-30 10:40 ` Mark Rutland
2017-03-28 16:15 ` [PATCH 5/8] x86: switch atomic.h to use atomic-instrumented.h Dmitry Vyukov
2017-03-28 16:25 ` Dmitry Vyukov
2017-03-29 13:37 ` Mark Rutland
2017-05-26 19:28 ` Dmitry Vyukov
2017-03-28 16:15 ` [PATCH 6/8] kasan: allow kasan_check_read/write() to accept pointers to volatiles Dmitry Vyukov
2017-03-28 16:15 ` [PATCH 7/8] asm-generic: add KASAN instrumentation to atomic operations Dmitry Vyukov
2017-03-29 14:00 ` Mark Rutland
2017-03-29 15:52 ` Dmitry Vyukov
2017-03-29 15:56 ` Mark Rutland
2017-03-28 16:15 ` [PATCH 8/8] asm-generic, x86: add comments for atomic instrumentation Dmitry Vyukov
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