linux-kernel - Re: [PATCH v3 04/19] mm: slub: implement SLUB version of obj_to

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: <alpine.DEB.2.21.2004222349280.20021@www.lameter.com>
Date:   Wed, 22 Apr 2020 23:52:13 +0000 (UTC)
From:   Christopher Lameter <cl@...ux.com>
To:     Roman Gushchin <guro@...com>
cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>, linux-mm@...ck.org,
        kernel-team@...com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 04/19] mm: slub: implement SLUB version of
 obj_to_index()

On Wed, 22 Apr 2020, Roman Gushchin wrote:

>  enum stat_item {
>  	ALLOC_FASTPATH,		/* Allocation from cpu slab */
> @@ -86,6 +87,7 @@ struct kmem_cache {
>  	unsigned long min_partial;
>  	unsigned int size;	/* The size of an object including metadata */
>  	unsigned int object_size;/* The size of an object without metadata */
> +	struct reciprocal_value reciprocal_size;


This needs to be moved further back since it is not an item that needs to
be cache hot for the hotpaths. Place it with "align", inuse etc?

Hmmm. the same applies to min_partial maybe?