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

From: Arkadiusz MiÅkiewicz
Date: Sat Mar 31 2012 - 10:20:25 EST

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@xxxxxx 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

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 MiÅkiewicz PLD/Linux Team
arekm /
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