linux-kernel - Re: [PATCH -mm 3/6] slub: introduce __kfree

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.1.10.0903050938300.22053@qirst.com>
Date:	Thu, 5 Mar 2009 09:39:03 -0500 (EST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Nick Piggin <npiggin@...e.de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Manfred Spraul <manfred@...orfullife.com>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -mm 3/6] slub: introduce __kfree_rcu

On Thu, 5 Mar 2009, Lai Jiangshan wrote:

> The first parameter of __kfree_rcu() is unused in slab,slub,slqb.
> (I used it before, for CONFIG_SLUB_DEBUG=y ...etc. But I found
> these debugging code is needless)
>
> Object sizes of the memory objects in slob's kmalloc-slab are various.
> We hardly calculate the start address of the object from the rcu address.

But you can start with the descriptor at the beginning of the page and
scan until you find the object.

--
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/