linux-kernel - Re: [PATCH] add __GFP_ZERP to GFP_LEVEL

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: <20070723151306.86e3e0ce.akpm@linux-foundation.org>
Date:	Mon, 23 Jul 2007 15:13:06 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Christoph Lameter <clameter@....com>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Daniel Phillips <phillips@...gle.com>,
	linux-mm <linux-mm@...ck.org>
Subject: Re: [PATCH] add __GFP_ZERP to GFP_LEVEL_MASK

On Mon, 23 Jul 2007 14:43:23 -0700
Christoph Lameter <clameter@....com> wrote:

> __GFP_ZERO is implemented by the slab allocators (the page allocator
> has no knowledge about the length of the object to be zeroed). The slab
> allocators do not pass __GFP_ZERO to the page allocator.

OK, well that was weird.  So

	kmalloc(42, GFP_KERNEL|__GFP_ZERO);

duplicates

	kzalloc(42, GFP_KERNEL);


Why do it both ways?
-
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/