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From: Mark Rutland <mark.rutland@arm.com>
To: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
	dvyukov@google.com, mingo@redhat.com, peterz@infradead.org
Subject: Re: [PATCH 3/3] sched/core / kcov: avoid kcov_area during task switch
Date: Fri, 4 May 2018 15:36:17 +0100	[thread overview]
Message-ID: <20180504143617.5smet67tomygchuu@lakrids.cambridge.arm.com> (raw)
In-Reply-To: <9dbd4703-5d79-0f3c-306c-5d50a757c11b@virtuozzo.com>

On Fri, May 04, 2018 at 05:32:26PM +0300, Andrey Ryabinin wrote:
> On 05/04/2018 04:55 PM, Mark Rutland wrote:
> 
> > +#define kcov_prepare_switch(t)			\
> > +do {						\
> > +	(t)->kcov_mode |= KCOV_IN_CTXSW;	\
> > +} while (0)
> > +
> > +#define kcov_finish_switch(t)			\
> > +do {						\
> > +	(t)->kcov_mode &= ~KCOV_IN_CTXSW;	\
> > +} while (0)
> > +
> 
> Why macros?

I can't use static inline functions without a circular include
dependency between <linux/sched.h> and <linux/kcov.h>, since the
definition of task_struct uses things defined in <linux/kcov.h>.

Thanks,
Mark.

      reply	other threads:[~2018-05-04 14:36 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-04 13:55 [PATCH 0/3] kcov: fix unexpected faults Mark Rutland
2018-05-04 13:55 ` [PATCH 1/3] kcov: ensure irq code sees a valid area Mark Rutland
2018-05-04 14:56   ` Mark Rutland
2018-05-04 13:55 ` [PATCH 2/3] kcov: prefault the kcov_area Mark Rutland
2018-05-04 14:36   ` Andrey Ryabinin
2018-05-04 14:38     ` Mark Rutland
2018-05-04 14:42       ` Andrey Ryabinin
2018-05-08 22:51   ` Andrew Morton
2018-05-09  9:41     ` Mark Rutland
2018-05-04 13:55 ` [PATCH 3/3] sched/core / kcov: avoid kcov_area during task switch Mark Rutland
2018-05-04 14:32   ` Andrey Ryabinin
2018-05-04 14:36     ` Mark Rutland [this message]

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