linux-kernel - Re: [PATCH] arch/parisc/kernel/unaligned.c: Use time

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Message-ID: <20080317154057.GD3904@phobos.i.cabal.ca>
Date:	Mon, 17 Mar 2008 11:40:57 -0400
From:	Kyle McMartin <kyle@...artin.ca>
To:	"S.?a??lar Onur" <caglar@...dus.org.tr>
Cc:	linux-kernel@...r.kernel.org, Kyle McMartin <kyle@...artin.ca>,
	linux-parisc@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] arch/parisc/kernel/unaligned.c: Use time_* macros

Hi,

On Mon, Mar 17, 2008 at 11:36:25AM +0200, S.?a??lar Onur wrote:

Sorry, I seem to be losing at charsets with your name. :(

> The functions time_before, time_before_eq, time_after, and time_after_eq are more robust for comparing jiffies against other values.
> 
> So following patch implements usage of the time_after() macro, defined at linux/jiffies.h, which deals with wrapping correctly
> 

I prefer the idea of using printk_ratelimit. I've committed a patch that
does this to git and credited you with pointing it out.

cheers, Kyle

> Cc: Kyle McMartin <kyle@...artin.ca>
> Cc: linux-parisc@...r.kernel.org
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Signed-off-by: S.Ça??lar Onur <caglar@...dus.org.tr>
> ---
>  arch/parisc/kernel/unaligned.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
> index aebf3c1..19b8a79 100644
> --- a/arch/parisc/kernel/unaligned.c
> +++ b/arch/parisc/kernel/unaligned.c
> @@ -460,7 +460,7 @@ void handle_unaligned(struct pt_regs *regs)
>  			goto force_sigbus;
>  		}
>  
> -		if (unaligned_count > 5 && jiffies - last_time > 5*HZ) {
> +		if (unaligned_count > 5 && time_after(jiffies, last_time + 5 * HZ)) {
>  			unaligned_count = 0;
>  			last_time = jiffies;
>  		}
> -- 
> 1.5.4.3
> 
--
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