From: Wouter Verhelst <wouter@grep.be>
To: Pavel Machek <pavel@ucw.cz>
Cc: Paul Clements <paul.clements@steeleye.com>,
akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] nbd: show nbd client pid in sysfs
Date: Sun, 10 Dec 2006 19:07:25 +0100 [thread overview]
Message-ID: <20061210180725.GA29943@country.grep.be> (raw)
In-Reply-To: <20061208211723.GC4924@ucw.cz>
On Fri, Dec 08, 2006 at 09:17:23PM +0000, Pavel Machek wrote:
> Hi!
>
> > This simple patch allows nbd to expose the nbd-client
> > daemon's PID in /sys/block/nbd<x>/pid. This is helpful
> > for tracking connection status of a device and for
> > determining which nbd devices are currently in use.
>
> Actually is it needed at all? Perhaps nbd clients should be modified
> to put nbdX in their process nam?
I don't think that's the right approach; only the kernel can guarantee
that a given process is actually managing a given nbd device (I could
have some rogue process running around announcing that it's managing
nbd2, and then what?)
--
<Lo-lan-do> Home is where you have to wash the dishes.
-- #debian-devel, Freenode, 2004-09-22
next prev parent reply other threads:[~2006-12-10 18:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-06 2:13 [PATCH] nbd: show nbd client pid in sysfs Paul Clements
2006-12-08 21:16 ` Pavel Machek
2006-12-08 21:17 ` Pavel Machek
2006-12-10 18:07 ` Wouter Verhelst [this message]
2006-12-10 19:58 ` Pavel Machek
2006-12-10 23:18 ` Wouter Verhelst
2006-12-10 23:23 ` Pavel Machek
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