From: Arjan van de Ven <arjan@infradead.org>
To: Denis Vlasenko <vda@ilport.com.ua>
Cc: Andrew Morton <akpm@osdl.org>,
Russell King <rmk+lkml@arm.linux.org.uk>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] deinline sleep/delay functions
Date: Thu, 30 Jun 2005 13:22:53 +0200 [thread overview]
Message-ID: <1120130573.3181.42.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <200506301410.43524.vda@ilport.com.ua>
> An if(usec > 2000) { printk(..); dump_stack(); } will do.
that's runtime not compile time.
The old situation was a compile time check which is far more powerful.
>
> But do you really want to do this? There might be legitimate reasons
> to compute udelay's parameter with results which are sometimes large.
however that's not valid, because a really large udelay parameter will
cause the delay loop math to overflow. That was the main reason for the
"no more than 2ms or so" restriction.
>
> If you really want to, let's decide on this limit now,
the existing code already has a limit so why not just use that?
next prev parent reply other threads:[~2005-06-30 11:23 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-30 5:52 Denis Vlasenko
2005-06-30 8:52 ` Russell King
2005-06-30 9:11 ` Andrew Morton
2005-06-30 9:19 ` Arjan van de Ven
2005-06-30 10:21 ` Denis Vlasenko
2005-06-30 10:47 ` Arjan van de Ven
2005-06-30 11:10 ` Denis Vlasenko
2005-06-30 11:21 ` Russell King
2005-06-30 11:22 ` Arjan van de Ven [this message]
2005-06-30 11:44 ` Denis Vlasenko
2005-06-30 11:57 ` Maciej W. Rozycki
2005-06-30 12:04 ` Russell King
2005-06-30 12:20 ` Denis Vlasenko
2005-07-01 7:54 ` Vojtech Pavlik
2005-06-30 9:44 ` Russell King
2005-07-01 7:53 ` Vojtech Pavlik
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