linux-kernel - Re: [RFC][PATCH 2/2] quicklist shouldn't be proportional to # of CPUs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20080826082756.232C.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Tue, 26 Aug 2008 08:31:02 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Mike Travis <travis@....com>
Cc:	kosaki.motohiro@...fujitsu.com, David Miller <davem@...emloft.net>,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, cl@...ux-foundation.org,
	tokunaga.keiich@...fujitsu.com
Subject: Re: [RFC][PATCH 2/2] quicklist shouldn't be proportional to # of CPUs

Hi Mike, 

> >>> +	num_cpus_per_node = cpus_weight_nr(node_to_cpumask(node));
> 
> I think the more correct usage would be:
> 
> 	{
> 		node_to_cpumask_ptr(v, node);
> 		num_cpus_per_node = cpus_weight_nr(*v);
> 		max /= num_cpus_per_node;
> 
> 		return max(max, min_pages);
> 	}
> 
> which should load 'v' with a pointer to the node_to_cpumask_map[node] entry
> [and avoid using stack space for the cpumask_t variable for those arch's
> that define a node_to_cpumask_map (or similar).]  Otherwise a local cpumask_t
> variable '_v' is created to which 'v' is pointing to and thus can be used
> directly as an arg to the cpu_xxx ops.

Thank you for your attension.
please see my latest patch (http://marc.info/?l=linux-mm&m=121966459713193&w=2)
it do that.



--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/