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From: "Serge E. Hallyn" <serue-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
To: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
Cc: kyle-hoO6YkzgTuCM0SS3m2neIg@public.gmane.org,
	bastian-yyjItF7Rl6lg9hUCZPvPmw@public.gmane.org,
	containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org,
	xemul-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org,
	Alan Cox <alan-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>,
	ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org
Subject: Re: [RFC][PATCH 7/8]: Auto-create ptmx node when mounting devpts
Date: Thu, 21 Aug 2008 12:22:45 -0500	[thread overview]
Message-ID: <20080821172245.GA28411@us.ibm.com> (raw)
In-Reply-To: <48AD9C93.6080302-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>

Quoting H. Peter Anvin (hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org):
> Alan Cox wrote:
>>> auto-created, than supporting mknod(2) inside the devpts filesystem.  
>>> It's not a matter of "changing the user space"; it's a matter of what 
>>> makes most sense inside the kernel.
>>
>> Having an extra node with different permissions suddenely appear without
>> warning isn't I think good behaviour.
>
> Hm.  Given that the single-instance mode is the backwards compatibility  
> mode (and it's accessible from outside the filesystem), it probably  
> makes sense to suppress creating this device node when *not* applying  
> the "newns" option, or whatever we want to call it.

That makes sense.  But if Suka does that, then is creating the device
when the newns flag is specified ok with you, Alan?

>> I'm open to being convinced and the
>> other problems with that code are more pressing.
>
> Agreed.
>
> 	-hpa

thanks,
-serge

  parent reply	other threads:[~2008-08-21 17:22 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-21  2:21 [RFC][PATCH 0/8][v2]: Enable multiple mounts of devpts sukadev-r/Jw6+rmf7HQT0dZR+AlfA
     [not found] ` <20080821022126.GA29449-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-21  2:26   ` [RFC][PATCH 1/8]: /dev/tty tweak in init_dev() sukadev-r/Jw6+rmf7HQT0dZR+AlfA
     [not found]     ` <20080821022621.GA29658-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-21  9:19       ` Alan Cox
2008-08-21  9:26       ` Alan Cox
2008-08-21  2:26   ` [RFC][PATCH 2/8]: Add inode parameter devpts interfaces sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-21  2:27   ` [RFC][PATCH 3/8]: Remove devpts_root global sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-21  2:27   ` [RFC][PATCH 4/8]: Per-mount allocated_ptys sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-21  2:28   ` [RFC][PATCH 5/8]: Per-mount 'config' object sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-21  2:28   ` [RFC][PATCH 6/8]: Extract option parsing to new function sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-21  2:29   ` [RFC][PATCH 7/8]: Auto-create ptmx node when mounting devpts sukadev-r/Jw6+rmf7HQT0dZR+AlfA
     [not found]     ` <20080821022908.GG29658-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-21  9:21       ` Alan Cox
     [not found]         ` <20080821102139.43c44f67-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
2008-08-21 16:09           ` H. Peter Anvin
     [not found]             ` <48AD932F.8090908-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-21 16:27               ` Alan Cox
     [not found]                 ` <20080821172700.781b0011-qBU/x9rampVanCEyBjwyrvXRex20P6io@public.gmane.org>
2008-08-21 16:49                   ` H. Peter Anvin
     [not found]                     ` <48AD9C93.6080302-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-21 17:22                       ` Serge E. Hallyn [this message]
     [not found]                         ` <20080821172245.GA28411-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-21 17:07                           ` Alan Cox
2008-08-21 17:23                       ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
     [not found]                         ` <20080821172342.GA8059-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-21 17:38                           ` Eric W. Biederman
     [not found]                             ` <m18wuqtgj7.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-08-21 17:50                               ` H. Peter Anvin
     [not found]                                 ` <48ADAAE2.6040700-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-21 18:23                                   ` Eric W. Biederman
     [not found]                                     ` <m1hc9eqlbo.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-08-21 18:36                                       ` H. Peter Anvin
2008-08-21 17:40                           ` H. Peter Anvin
     [not found]                             ` <48ADA890.4060309-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-21 18:11                               ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
     [not found]                                 ` <20080821181133.GB8059-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-21 18:17                                   ` H. Peter Anvin
2008-08-21 21:00                                   ` Serge E. Hallyn
     [not found]                                     ` <20080821210040.GA14532-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-21 22:16                                       ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-21  2:29   ` [RFC][PATCH 8/8]: Enable multiple mounts of devpts sukadev-r/Jw6+rmf7HQT0dZR+AlfA
2008-08-21  2:45   ` [RFC][PATCH 0/8][v2]: " H. Peter Anvin
     [not found]     ` <48ACD6CB.5030706-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-21  3:10       ` sukadev-r/Jw6+rmf7HQT0dZR+AlfA
     [not found]         ` <20080821031028.GB30205-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-08-21  3:15           ` H. Peter Anvin
     [not found]             ` <48ACDDC7.3000704-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-21 16:34               ` Cedric Le Goater
     [not found]                 ` <48AD991F.9010906-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org>
2008-08-21 16:40                   ` H. Peter Anvin
     [not found]                     ` <48AD9A97.6000807-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2008-08-21 16:54                       ` Cedric Le Goater
     [not found]                         ` <48AD9DCD.3060306-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org>
2008-08-21 16:56                           ` H. Peter Anvin
2008-08-21 17:28                           ` Serge E. Hallyn
2008-08-21 17:45                           ` Eric W. Biederman
     [not found]                             ` <m1fxoys1ng.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-08-21 21:02                               ` Cedric Le Goater
     [not found]                                 ` <48ADD7D3.7080400-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org>
2008-08-29  9:02                                   ` Cedric Le Goater
     [not found]                                     ` <48B7BB3C.5080404-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org>
2008-09-02  3:04                                       ` Serge E. Hallyn
     [not found]                                         ` <20080902030426.GB12277-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-09-02 10:00                                           ` Eric W. Biederman
     [not found]                                             ` <m1vdxeeuk0.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-09-02 15:52                                               ` Serge E. Hallyn
     [not found]                                                 ` <20080902155211.GF8524-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-09-03 12:01                                                   ` Cedric Le Goater
     [not found]                                                     ` <48BE7C98.1040004-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org>
2008-09-03 13:12                                                       ` Eric W. Biederman
2008-09-03 13:41                                                       ` Serge E. Hallyn
2008-09-03 11:47                                               ` Cedric Le Goater
     [not found]                                                 ` <48BE7959.1080109-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org>
2008-09-03 13:24                                                   ` Serge E. Hallyn
2008-09-03 11:43                                           ` Cedric Le Goater
     [not found]                                             ` <48BE7845.6070500-NmTC/0ZBporQT0dZR+AlfA@public.gmane.org>
2008-09-03 13:23                                               ` Serge E. Hallyn
     [not found]                                                 ` <20080903132307.GA9527-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2008-09-03 13:52                                                   ` Cedric Le Goater
2008-09-02  9:22                                       ` Eric W. Biederman
     [not found]                                         ` <m1d4jmhpgl.fsf-B27657KtZYmhTnVgQlOflh2eb7JE58TQ@public.gmane.org>
2008-09-03 12:04                                           ` Cedric Le Goater

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