From: Eyal Lebedinsky <eyal@eyal.emu.id.au>
To: Karim Yaghmour <karym@opersys.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Linux Trace Toolkit ready for 2.5
Date: Sat, 13 Apr 2002 08:34:59 +1000 [thread overview]
Message-ID: <3CB76113.ABEAA49E@eyal.emu.id.au> (raw)
In-Reply-To: <3CB61523.89BE3422@opersys.com>
Karim Yaghmour wrote:
>
> I have prepared a 2.5.7 patch for the Linux Trace Toolkit.
>
> #define TRACE_SCHEDCHANGE(OUT, IN) \
> do \
> {\
> trace_schedchange sched_event;\
> sched_event.out = OUT->pid;\
> sched_event.in = (uint32_t) IN;\
> sched_event.out_state = OUT->state; \
> trace_event(TRACE_EV_SCHEDCHANGE, &sched_event);\
> } while(0);
The macro body should not have the terminating semicolon. This is
the whole point of this trick, allowing it to be used safely in if
statements like a function.
--
Eyal Lebedinsky (eyal@eyal.emu.id.au) <http://samba.org/eyal/>
next prev parent reply other threads:[~2002-04-12 22:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-11 22:58 Karim Yaghmour
2002-04-12 22:34 ` Eyal Lebedinsky [this message]
2002-04-13 0:31 ` Karim Yaghmour
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