From: Joe Thornber <thornber@btconnect.com>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] Re: What really works?
Date: Tue Oct 23 04:42:01 2001 [thread overview]
Message-ID: <20011023104359.B385@btconnect.com> (raw)
In-Reply-To: <20011022230524.B4212@redhat.com>; from sct@redhat.com on Mon, Oct 22, 2001 at 11:05:24PM +0100
Stephen,
On Mon, Oct 22, 2001 at 11:05:24PM +0100, Stephen C. Tweedie wrote:
> LVM folks, am I missing something here? I can't see how you can
> assert that the device is truly quiescent after the LOCK_PE has been
> set.
You're not missing anything. The correct thing to do (as pointed out
by Andrea Arc.) is to hook b_end_io such that we can keep track of all
'in flight' io's, and only start moving once these have completed.
This is implemented in the new device-mapper driver that we are
switching to shortly. I consider 'live' pvmove broken in the current
LVM.
- Joe
next prev parent reply other threads:[~2001-10-23 4:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E15vISM-0005YX-00.2001-10-21-14-15-58@mail5.svr.pol.co.uk>
2001-10-21 14:25 ` [linux-lvm] What really works? Jason A. Lixfeld
2001-10-22 14:37 ` [linux-lvm] " Theodore Tso
2001-10-22 14:42 ` Bryan-TheBS-Smith
2001-10-22 21:13 ` [linux-lvm] " Jason A. Lixfeld
2001-10-23 5:35 ` [linux-lvm] " Stephen C. Tweedie
2001-10-22 17:04 ` Stephen C. Tweedie
2001-10-22 17:22 ` Andreas Dilger
2001-10-23 5:32 ` Stephen C. Tweedie
2001-10-23 4:42 ` Joe Thornber [this message]
2001-11-02 9:40 ` Stephen C. Tweedie
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