LKML Archive on
help / color / mirror / Atom feed
From: Blaisorblade <>
To: Jeff Dike <>
	Andrew Morton <>,
	LKML <>
Subject: Re: [uml-devel] [PATCH] UML - fix I/O hang when multiple devices are in use
Date: Sat, 31 Mar 2007 16:17:08 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On giovedì 29 marzo 2007, Jeff Dike wrote:
> On Thu, Mar 29, 2007 at 02:36:43AM +0200, Blaisorblade wrote:
> > > Sometimes you need to. I'd probably just remove the do_ubd check and
> > > always recall the request function when handling completions, it's
> > > easier and safe.
> If I'm understanding this correctly, this is what happens now.  There
> is still the flag check and return if the queue is being run, but I
> don't see the advantage of removing that.
Possibly he just didn't understood what do_ubd was for, maybe there's some 
technical reason.

> That's a lot of mapping and unmapping though.  I wonder if just
> calling mmap would cause the COWed page to be dropped...
Yes, it would.
Inform me of my mistakes, so I can add them to my list!
Paolo Giarrusso, aka Blaisorblade

      parent reply	other threads:[~2007-03-31 14:17 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-28  2:02 Jeff Dike
2007-03-29  0:36 ` [uml-devel] " Blaisorblade
2007-03-29  1:02   ` Blaisorblade
2007-03-29 18:29   ` Jeff Dike
2007-03-30 11:53     ` Blaisorblade
2007-03-31 14:17     ` Blaisorblade [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \
    --subject='Re: [uml-devel] [PATCH] UML - fix I/O hang when multiple devices are in use' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).