From: Peter Zijlstra <peterz@infradead.org>
To: Marco Elver <elver@google.com>
Cc: paulmck@kernel.org, andreyknvl@google.com, glider@google.com,
dvyukov@google.com, kasan-dev@googlegroups.com,
linux-kernel@vger.kernel.org, mark.rutland@arm.com,
will@kernel.org, boqun.feng@gmail.com, arnd@arndb.de,
viro@zeniv.linux.org.uk, christophe.leroy@c-s.fr, dja@axtens.net,
mpe@ellerman.id.au, rostedt@goodmis.org, mhiramat@kernel.org,
mingo@kernel.org, christian.brauner@ubuntu.com,
daniel@iogearbox.net, cyphar@cyphar.com, keescook@chromium.org,
linux-arch@vger.kernel.org
Subject: Re: [PATCH 3/5] asm-generic, kcsan: Add KCSAN instrumentation for bitops
Date: Mon, 20 Jan 2020 15:40:48 +0100 [thread overview]
Message-ID: <20200120144048.GB14914@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20200120141927.114373-3-elver@google.com>
On Mon, Jan 20, 2020 at 03:19:25PM +0100, Marco Elver wrote:
> Add explicit KCSAN checks for bitops.
>
> Note that test_bit() is an atomic bitop, and we instrument it as such,
Well, it is 'atomic' in the same way that atomic_read() is. Both are
very much not atomic ops, but are part of an interface that facilitates
atomic operations.
next prev parent reply other threads:[~2020-01-20 14:41 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-20 14:19 [PATCH 1/5] include/linux: Add instrumented.h infrastructure Marco Elver
2020-01-20 14:19 ` [PATCH 2/5] asm-generic, atomic-instrumented: Use generic instrumented.h Marco Elver
2020-01-20 14:19 ` Marco Elver
2020-01-20 14:19 ` [PATCH 3/5] asm-generic, kcsan: Add KCSAN instrumentation for bitops Marco Elver
2020-01-20 14:19 ` Marco Elver
2020-01-20 14:40 ` Peter Zijlstra [this message]
2020-01-20 16:27 ` Paul E. McKenney
2020-01-20 16:52 ` Peter Zijlstra
2020-01-20 16:52 ` Peter Zijlstra
2020-01-20 20:23 ` Paul E. McKenney
2020-01-20 20:23 ` Paul E. McKenney
2020-01-21 9:15 ` Peter Zijlstra
2020-01-21 9:15 ` Peter Zijlstra
2020-01-21 14:21 ` Paul E. McKenney
2020-01-21 14:47 ` Peter Zijlstra
2020-01-21 14:47 ` Peter Zijlstra
2020-01-21 15:07 ` Marco Elver
2020-01-21 15:07 ` Marco Elver
2020-01-21 16:16 ` Paul E. McKenney
2020-01-21 16:16 ` Paul E. McKenney
2020-01-20 14:19 ` [PATCH 4/5] iov_iter: Use generic instrumented.h Marco Elver
2020-01-20 14:19 ` Marco Elver
2020-01-20 14:19 ` [PATCH 5/5] copy_to_user, copy_from_user: " Marco Elver
2020-01-20 14:51 ` Dmitry Vyukov
2020-01-20 14:51 ` Dmitry Vyukov
2020-01-20 15:05 ` Marco Elver
2020-01-20 15:05 ` Marco Elver
2020-01-20 14:25 ` [PATCH 1/5] include/linux: Add instrumented.h infrastructure Alexander Potapenko
2020-01-20 14:25 ` Alexander Potapenko
2020-01-20 14:34 ` Dmitry Vyukov
2020-01-20 14:34 ` Dmitry Vyukov
2020-01-20 15:53 ` Marco Elver
2020-01-20 15:53 ` Marco Elver
2020-01-20 14:45 ` Dmitry Vyukov
2020-01-20 14:45 ` Dmitry Vyukov
2020-01-20 14:58 ` Dmitry Vyukov
2020-01-20 14:58 ` Dmitry Vyukov
2020-01-20 15:09 ` Dmitry Vyukov
2020-01-20 15:09 ` Dmitry Vyukov
2020-01-20 15:40 ` Marco Elver
2020-01-20 15:40 ` Marco Elver
2020-01-20 16:06 ` Dmitry Vyukov
2020-01-20 16:06 ` Dmitry Vyukov
2020-01-20 16:25 ` Marco Elver
2020-01-20 16:25 ` Marco Elver
2020-01-20 16:39 ` Dmitry Vyukov
2020-01-20 16:39 ` Dmitry Vyukov
2020-01-21 9:44 ` Marco Elver
2020-01-21 9:44 ` Marco Elver
2020-01-21 13:01 ` Dmitry Vyukov
2020-01-21 13:01 ` Dmitry Vyukov
2020-01-21 16:14 ` Marco Elver
2020-01-21 16:14 ` Marco Elver
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