From: Peter Zijlstra <peterz@infradead.org>
To: Marco Elver <elver@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>,
Andrey Konovalov <andreyknvl@google.com>,
Mark Rutland <mark.rutland@arm.com>,
Borislav Petkov <bp@alien8.de>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>,
clang-built-linux <clang-built-linux@googlegroups.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Alexander Potapenko <glider@google.com>,
kasan-dev <kasan-dev@googlegroups.com>,
LKML <linux-kernel@vger.kernel.org>,
the arch/x86 maintainers <x86@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Josh Poimboeuf <jpoimboe@redhat.com>
Subject: Re: [PATCH -tip v3 1/2] kcov: Make runtime functions noinstr-compatible
Date: Mon, 15 Jun 2020 16:35:23 +0200 [thread overview]
Message-ID: <20200615143523.GE2554@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20200615142949.GT2531@hirez.programming.kicks-ass.net>
On Mon, Jun 15, 2020 at 04:29:50PM +0200, Peter Zijlstra wrote:
> Let me go look at your KCSAN thing now...
vmlinux.o: warning: objtool: idtentry_enter_cond_rcu()+0x16: call to is_idle_task() leaves .noinstr.text section
---
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b62e6aaf28f03..a7abc18a7d0ad 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1663,7 +1663,7 @@ extern struct task_struct *idle_task(int cpu);
*
* Return: 1 if @p is an idle task. 0 otherwise.
*/
-static inline bool is_idle_task(const struct task_struct *p)
+static __always_inline bool is_idle_task(const struct task_struct *p)
{
return !!(p->flags & PF_IDLE);
}
next prev parent reply other threads:[~2020-06-15 14:35 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-05 8:28 Marco Elver
2020-06-05 8:28 ` [PATCH -tip v3 2/2] kcov: Unconditionally add -fno-stack-protector to compiler options Marco Elver
2020-06-05 16:50 ` Nick Desaulniers
2020-06-05 10:57 ` [PATCH -tip v3 1/2] kcov: Make runtime functions noinstr-compatible Dmitry Vyukov
2020-06-05 12:03 ` Peter Zijlstra
2020-06-05 13:25 ` Andrey Konovalov
2020-06-07 9:37 ` Dmitry Vyukov
2020-06-08 7:48 ` Marco Elver
2020-06-08 7:57 ` Dmitry Vyukov
2020-06-08 11:01 ` Peter Zijlstra
2020-06-11 21:55 ` Peter Zijlstra
2020-06-11 21:58 ` Peter Zijlstra
2020-06-12 11:34 ` Peter Zijlstra
2020-06-12 4:04 ` Dmitry Vyukov
2020-06-12 11:49 ` Marco Elver
2020-06-13 17:24 ` Dmitry Vyukov
2020-06-15 7:53 ` Marco Elver
2020-06-15 14:29 ` Peter Zijlstra
2020-06-15 14:35 ` Peter Zijlstra [this message]
2020-06-15 14:53 ` Marco Elver
2020-06-15 15:03 ` Peter Zijlstra
2020-06-15 15:20 ` Peter Zijlstra
2020-06-17 14:32 ` Marco Elver
2020-06-17 14:49 ` Peter Zijlstra
2020-06-17 15:19 ` Peter Zijlstra
2020-06-17 15:19 ` Marco Elver
2020-06-17 15:55 ` Peter Zijlstra
2020-06-17 16:36 ` Peter Zijlstra
2020-06-17 18:06 ` Marco Elver
2020-06-15 14:54 ` Peter Zijlstra
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