linux-kernel - Re: [PATCH] slab: do not call compound_head() in page_get

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]

Date:	Wed, 20 Jun 2012 18:37:49 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Michel Lespinasse <walken@...gle.com>
cc:	linux-mm@...ck.org, Christoph Lameter <cl@...ux-foundation.org>,
	Pekka Enberg <penberg@...nel.org>,
	Matt Mackall <mpm@...enic.com>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] slab: do not call compound_head() in page_get_cache()

On Wed, 20 Jun 2012, Michel Lespinasse wrote:

> page_get_cache() does not need to call compound_head(), as its unique
> caller virt_to_slab() already makes sure to return a head page.
> 
> Additionally, removing the compound_head() call makes page_get_cache()
> consistent with page_get_slab().
> 
> Signed-off-by: Michel Lespinasse <walken@...gle.com>

Acked-by: David Rientjes <rientjes@...gle.com>
--
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/