netdev - Re: [PATCH] net: fix rtable leak in net/ipv4/route.c

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Message-ID: <4A13E5E5.4060007@cosmosbay.com>
Date:	Wed, 20 May 2009 13:13:41 +0200
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Jarek Poplawski <jarkao2@...il.com>
CC:	David Miller <davem@...emloft.net>, nhorman@...driver.com,
	lav@....ru, shemminger@...ux-foundation.org, netdev@...r.kernel.org
Subject: Re: [PATCH] net: fix rtable leak in net/ipv4/route.c

Jarek Poplawski a écrit :
> On Wed, May 20, 2009 at 08:14:28AM +0200, Eric Dumazet wrote:
>> +					for (aux = rt_hash_table[i].chain;;) {
>> +						if (aux == rth) {
>> +							length += ONE;
>> +							break;
>> +						}
>> +						if (compare_hash_inputs(&aux->fl, &rth->fl))
>> +							break;
>> +						aux = aux->u.dst.rt_next;
>> +					}
> 
> Very "interesting" for() usage, but isn't it more readable like this?:
> 
> 					aux = rt_hash_table[i].chain;
> 					while (aux != rth) {
> 						if (compare_hash_inputs(&aux->fl, &rth->fl))
> 							break;
> 						aux = aux->u.dst.rt_next;
> 					}

well, this test is done two times, this is the difference...

> 
> 					if (aux == rth)
> 						length += ONE;
> 
> Jarek P.

I first wrote :

					for (aux = rt_hash_table[i].chain ; ; aux = aux->u.dst.rt_next) {
						if (aux == rth) {
							length += ONE;
							break;
						}
						if (compare_hash_inputs(&aux->fl, &rth->fl))
							break;
					}

but had to split the too long line, so ended in the form in the patch :)


Thank you


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