linux-kernel - Re: [PATCH] proc: reset mount options after the last procfs umount

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Message-Id: <201203311619.38921.a.miskiewicz@gmail.com>
Date:	Sat, 31 Mar 2012 16:19:38 +0200
From:	Arkadiusz Miśkiewicz <a.miskiewicz@...il.com>
To:	Vasiliy Kulikov <segoon@...nwall.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, Valdis.Kletnieks@...edu,
	linux-kernel@...r.kernel.org, Alexey Dobriyan <adobriyan@...il.com>
Subject: Re: [PATCH] proc: reset mount options after the last procfs umount

On Saturday 31 of March 2012, Vasiliy Kulikov wrote:
> On Mon, Mar 26, 2012 at 15:37 -0700, Andrew Morton wrote:
> > On Sun, 25 Mar 2012 18:23:16 -0400
> > 
> > Valdis.Kletnieks@...edu wrote:
> > > Yes, it may be what the code actually *does*, but it certainly violates
> > > the Principle of Least Surprise...
> > 
> > It surprises me ;)  I never noticed that before.
> > 
> > It does seem pretty insane.  I wonder how much downstream damage would
> > result from fixing it.
> 
> Resetting options on each mount is implemented in the following patch.

"after all procs are umounted". For me such way is fine but still can suprise 
people.


Anyway - what's the problem with implementing support for separate options for 
each mount point?

> I wonder whether anybody will try to do such parallel type of things
> in reality (IOW, is it OK to leave this race?)

I mount multiple procs when using linux-vserver but these are currently not 
happening in parallel (but could be).

-- 
Arkadiusz Miśkiewicz        PLD/Linux Team
arekm / maven.pl            http://ftp.pld-linux.org/
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