netdev - Re: [PATCH v2 net-next 2/2] tipc: add name distributor resiliency queue

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Message-ID: <20140826143245.GC24538@eerihug-hybrid.rnd.ki.sw.ericsson.se>
Date:	Tue, 26 Aug 2014 16:32:45 +0200
From:	Erik Hugne <erik.hugne@...csson.com>
To:	<jon.maloy@...csson.com>, <ying.xue@...driver.com>,
	<richard.alpe@...csson.com>, <netdev@...r.kernel.org>
CC:	<tipc-discussion@...ts.sourceforge.net>
Subject: Re: [PATCH v2 net-next 2/2] tipc: add name distributor resiliency
 queue

if (e->expiry > now) should in fact be
if (time_after(e->expiry, now) to handle timer wraps correctly.

Thanks Niklas Söderlund for pointing this out.

v2 removed from patchwork

//E

On Tue, Aug 26, 2014 at 10:57:57AM +0200, erik.hugne@...csson.com wrote:
> +void tipc_named_process_backlog(void)
> +{
> +	struct distr_queue_item *e, *tmp;
> +	char addr[16];
> +	u64 now = get_jiffies_64();
> +
> +	list_for_each_entry_safe(e, tmp, &tipc_dist_queue, next) {
> +		if (e->expiry > now) {
> +			if (!tipc_update_nametbl(&e->i, e->node, e->dtype))
> +				continue;
> +		} else {
> +			tipc_addr_string_fill(addr, e->node);
> +			pr_warn_ratelimited("Dropping name table update (%d) of {%u, %u, %u} from %s key=%u\n",
> +					    e->dtype, ntohl(e->i.type),
> +					    ntohl(e->i.lower),
> +					    ntohl(e->i.upper),
> +					    addr, ntohl(e->i.key));
> +		}
> +		list_del(&e->next);
> +		kfree(e);
> +	}
> +}
> +
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