linux-kernel - Re: [PATCH 4/4] add ksm kernel shared memory driver.

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, 01 Apr 2009 19:31:41 -0500
From:	Anthony Liguori <anthony@...emonkey.ws>
To:	Izik Eidus <ieidus@...hat.com>
CC:	Andrea Arcangeli <aarcange@...hat.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	linux-mm@...ck.org, avi@...hat.com, chrisw@...hat.com,
	riel@...hat.com, jeremy@...p.org, mtosatti@...hat.com,
	hugh@...itas.com, corbet@....net, yaniv@...hat.com,
	dmonakhov@...nvz.org
Subject: Re: [PATCH 4/4] add ksm kernel shared memory driver.

Izik Eidus wrote:
> Anthony, the biggest problem about madvice() is that it is a real 
> system call api, i wouldnt want in that stage of ksm commit into api 
> changes of linux...
>
> The ioctl itself is restricting, madvice is much more...,
>
> Can we draft this issue to after ksm is merged, and after all the big 
> new fetures that we want to add to ksm will be merge....
> (then the api would be much more stable, and we will be able to ask 
> ppl in the list about changing of api, but for new driver that it yet 
> to be merged, it is kind of overkill to add api to linux)
>
> What do you think?

You can't change ABIs after something is merged or you break userspace.  
So you need to figure out the right ABI first.

Regards,

Anthony Liguori

--
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/