From: Zach Brown <zach.brown@oracle.com>
To: Jeff Moyer <jmoyer@redhat.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>,
linux-kernel@vger.kernel.org, linux-aio@kvack.org,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: [RFC][PATCH] Fix lock inversion aio_kick_handler()
Date: Thu, 09 Nov 2006 14:51:59 -0800 [thread overview]
Message-ID: <4553B10F.1020505@oracle.com> (raw)
In-Reply-To: <x49velokztg.fsf@segfault.boston.devel.redhat.com>
> Zach> > Doh. Unfortunately, this patch isn't entirely correct as it
> Zach> could race with > __put_ioctx() which sets ioctx->mm = NULL.
>
> Zach> Aha, yeah, that's what I was missing. Thanks.
>
> Zach> > Something like the following should do the trick:
>
> Zach> Cool, I'll respin and send it out.
>
> Did you ever resend this patch, Zach?
Sadly, no. I vaguely remember thinking that the refcounting was pretty
messed up in these paths and that more than just this patch was needed.
I don't remember the details.
Maybe I should take a look again :/.
> current kernels. I'm still running into the lockdep warnings.
When doing what? Working with that IO_CMD_EPOLL_WAIT patch?
- z
next prev parent reply other threads:[~2006-11-09 22:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-29 0:10 [RFC][PATCH] Fix lock inversion aio_kick_handler() Zach Brown
2006-07-29 1:34 ` Benjamin LaHaise
2006-07-29 2:02 ` Zach Brown
2006-11-09 22:41 ` Jeff Moyer
2006-11-09 22:51 ` Zach Brown [this message]
2006-11-09 22:57 ` Jeff Moyer
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:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4553B10F.1020505@oracle.com \
--to=zach.brown@oracle.com \
--cc=arjan@infradead.org \
--cc=bcrl@kvack.org \
--cc=jmoyer@redhat.com \
--cc=linux-aio@kvack.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.