linux-kernel - Re: RFC: deprecating/removing the legacy mode of devpts

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Message-ID: <1ec3667a-e6f4-4032-a94b-89a6957c6252@email.android.com>
Date:	Wed, 11 Apr 2012 18:56:10 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Al Viro <viro@...IV.linux.org.uk>, Kay Sievers <kay@...y.org>
CC:	"Ted Ts'o" <tytso@....edu>, Alan Cox <alan@...rguk.ukuu.org.uk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	Greg Kroah-Hartman <gregkh@...ux-foundation.org>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Subject: Re: RFC: deprecating/removing the legacy mode of devpts

Just replace /dev/ptmx with a pts/ptmx symlink... something that works already.

Al Viro <viro@...IV.linux.org.uk> wrote:

>On Sun, Apr 08, 2012 at 09:16:22PM +0200, Kay Sievers wrote:
>
>> I guess the following:
>>   - remove the 'ptmx' cdev from drivers/tty/pty.c
>>   - add a new devtmpfs_create_link() to drivers/base/devtmpfs.c
>>   - call devtmpfs_create_link() from _init in fs/devpts/inode.c
>>   - change the default of ptxmode=0 to a sane default = 0666
>>   - get rid of the (rather broken) idea of 'legacy' vs 'non-legacy
>mode'
>>     mount options in the default setup; I don't think userspace
>should
>>     ever be required to fiddle with such stuff
>
>You do realize that there are people with _static_ /dev out there,
>don't
>you?  As well as those of us who are not using your latest and greatest
>udev and not enabling devtmpfs at all.  Not all world is Fedora...

-- 
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