linux-kernel - Re: Enhancing semantics with memremap()

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: <20160531165828.GA25366@infradead.org>
Date:	Tue, 31 May 2016 09:58:28 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	"Luis R. Rodriguez" <mcgrof@...nel.org>
Cc:	Dan Williams <dan.j.williams@...el.com>,
	Toshi Kani <toshi.kani@...com>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Will Deacon <will.deacon@....com>,
	Christoph Hellwig <hch@...radead.org>, X86 ML <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-arch <linux-arch@...r.kernel.org>,
	Julia Lawall <julia.lawall@...6.fr>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Borislav Petkov <bp@...en8.de>
Subject: Re: Enhancing semantics with memremap() - aliasing with memremap()

On Tue, May 24, 2016 at 04:36:42PM -0700, Luis R. Rodriguez wrote:
> Is it a good time for that now? I would hope identifying proper
> aliasing uses for memremap() might be a bit easier now than for
> ioremap() given its not used as widely. It may be an easier target to
> also write some grammar rules for it as well.

So you want an explicit opt-in flag to allow aliasing?  Sounds fine to
me.