From: Ingo Molnar <mingo@kernel.org>
To: Mark Rutland <mark.rutland@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Dmitry Vyukov <dvyukov@google.com>,
Peter Zijlstra <peterz@infradead.org>,
Will Deacon <will.deacon@arm.com>,
"H. Peter Anvin" <hpa@zytor.com>,
kasan-dev <kasan-dev@googlegroups.com>,
"x86@kernel.org" <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH] locking/atomics: don't alias ____ptr
Date: Wed, 28 Jun 2017 18:56:52 +0200 [thread overview]
Message-ID: <20170628165651.bier32hnv3y4hmd6@gmail.com> (raw)
In-Reply-To: <20170628155445.GD8252@leverpostej>
* Mark Rutland <mark.rutland@arm.com> wrote:
> > And instead of adding
> >
> > #include <asm/atomic-instrumented.h>
> >
> > to the architecture code, we rather do
> >
> > # mv arch/xxx/include/asm/atomic.h mv arch/xxx/include/asm/arch_atomic.h
> > # echo '#include <asm-generic/atomic.h>' >arch/xxx/include/asm/atomic.h
> >
> > # mv include/asm-generic/atomic.h include/asm-generic/atomic_up.h
> >
> > and create a new include/asm-generic/atomic.h
> >
> > #ifndef __ASM_GENERIC_ATOMIC_H
> > #define __ASM_GENERIC_ATOMIC_H
> >
> > #ifdef CONFIG_ATOMIC_INSTRUMENTED_H
> > #include <asm-generic/atomic_instrumented.h>
> > #else
> > #include <asm-generic/atomic_up.h>
> > #endif
> >
> > #endif
>
> Given we're gonig to clean things up, we may as well avoid the backwards
> include of <asm-generic/atomic_instrumented.h>, whcih was only there as
> a bodge:
So, since the final v4.12 release is so close, I've put the following KASAN
commits aside into tip:WIP.locking/atomics:
4b47cc154eed: locking/atomic/x86, asm-generic: Add comments for atomic instrumentation
35787d9d7ca4: locking/atomics, asm-generic: Add KASAN instrumentation to atomic operations
68c1ed1fdb0a: kasan: Allow kasan_check_read/write() to accept pointers to volatiles
f1c3049f6729: locking/atomic/x86: Switch atomic.h to use atomic-instrumented.h
d079eebb3958: locking/atomic: Add asm-generic/atomic-instrumented.h
007d185b4462: locking/atomic/x86: Use 's64 *' for 'old' argument of atomic64_try_cmpxchg()
ba1c9f83f633: locking/atomic/x86: Un-macro-ify atomic ops implementation
(Note, I had to rebase these freshly, to decouple them from a refcount_t commit
that we need.)
and won't send them to Linus unless the cleanups are done and acked by Thomas.
Thanks,
Ingo
next prev parent reply other threads:[~2017-06-28 16:57 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-22 14:14 [PATCH v5 0/4] x86, kasan: add KASAN checks to atomic operations Dmitry Vyukov
[not found] ` <cover.1498140838.git.dvyukov@google.com>
2017-06-22 14:14 ` [PATCH v5 1/4] x86: switch atomic.h to use atomic-instrumented.h Dmitry Vyukov
2017-06-22 21:14 ` Andrew Morton
2017-06-23 8:23 ` Dmitry Vyukov
2017-06-23 8:54 ` Ingo Molnar
2017-06-23 19:00 ` Andrew Morton
2017-06-23 13:59 ` [tip:locking/core] locking/atomic/x86: Switch " tip-bot for Dmitry Vyukov
2017-06-22 14:14 ` [PATCH v5 2/4] kasan: allow kasan_check_read/write() to accept pointers to volatiles Dmitry Vyukov
2017-06-23 14:00 ` [tip:locking/core] kasan: Allow " tip-bot for Dmitry Vyukov
2017-07-26 12:10 ` tip-bot for Dmitry Vyukov
2017-06-22 14:14 ` [PATCH v5 3/4] asm-generic: add KASAN instrumentation to atomic operations Dmitry Vyukov
2017-06-23 14:01 ` [tip:locking/core] locking/atomics, asm-generic: Add " tip-bot for Dmitry Vyukov
2017-06-28 10:02 ` [PATCH] locking/atomics: don't alias ____ptr Sebastian Andrzej Siewior
2017-06-28 10:16 ` Dmitry Vyukov
2017-06-28 11:10 ` Thomas Gleixner
2017-06-28 11:12 ` Dmitry Vyukov
2017-06-28 11:21 ` Thomas Gleixner
2017-06-28 12:45 ` Mark Rutland
2017-06-28 12:24 ` Thomas Gleixner
2017-06-28 12:27 ` Dmitry Vyukov
2017-06-28 13:33 ` Thomas Gleixner
2017-06-28 11:15 ` Andrey Ryabinin
2017-06-28 12:12 ` Sebastian Andrzej Siewior
2017-06-28 13:20 ` Thomas Gleixner
2017-06-28 13:54 ` Thomas Gleixner
2017-06-28 14:14 ` Mark Rutland
2017-06-28 15:24 ` Thomas Gleixner
2017-06-28 15:54 ` Mark Rutland
2017-06-28 16:56 ` Ingo Molnar [this message]
2017-06-28 18:21 ` Thomas Gleixner
2017-06-29 6:47 ` Thomas Gleixner
2017-06-28 14:00 ` Andrey Ryabinin
2017-06-22 14:14 ` [PATCH v5 4/4] asm-generic, x86: add comments for atomic instrumentation Dmitry Vyukov
2017-06-23 14:01 ` [tip:locking/core] locking/atomic/x86, asm-generic: Add " tip-bot for Dmitry Vyukov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170628165651.bier32hnv3y4hmd6@gmail.com \
--to=mingo@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=aryabinin@virtuozzo.com \
--cc=bigeasy@linutronix.de \
--cc=dvyukov@google.com \
--cc=hpa@zytor.com \
--cc=kasan-dev@googlegroups.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mark.rutland@arm.com \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
--cc=torvalds@linux-foundation.org \
--cc=will.deacon@arm.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).