linux-kernel - Re: [RFC][PATCH 1/3] contigous big page allocator

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: <20101015001904I.fujita.tomonori@lab.ntt.co.jp>
Date:	Fri, 15 Oct 2010 00:24:05 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	felipe.contreras@...il.com
Cc:	fujita.tomonori@....ntt.co.jp, andi@...stfloor.org,
	kamezawa.hiroyu@...fujitsu.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, minchan.kim@...il.com
Subject: Re: [RFC][PATCH 1/3] contigous big page allocator

On Thu, 14 Oct 2010 15:09:13 +0300
Felipe Contreras <felipe.contreras@...il.com> wrote:

> > As already pointed out, some embeded drivers need physcailly
> > contignous memory. Currenlty, they use hacky tricks (e.g. playing with
> > the boot memory allocators). There are several proposals for this like
> > adding a new kernel memory allocator (from samsung).
> >
> > It's ideal if the memory allocator can handle this, I think.
> 
> Not only contiguous, but sometimes also coherent.

Can you give the list of such drivers?

Anyway, in general cases, the page allocator needs to allocate large
contignous memory if we want dma_alloc_coherent to return large
contignous coherent memory.
--
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/