From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [RFC] atomic create+open
Date: Fri, 07 Oct 2005 11:13:55 -0400 [thread overview]
Message-ID: <1128698035.8583.36.camel@lade.trondhjem.org> (raw)
In-Reply-To: <E1ENslH-00057W-00@dorka.pomaz.szeredi.hu>
fr den 07.10.2005 Klokka 15:59 (+0200) skreiv Miklos Szeredi:
> You can replace the inode in ->create_open() if you want to.
Thinking a bit more clearly after a cup of coffee. This statement isn't
even true.
Your pseudo-code offers no guarantees that you are the sole user of the
dentry once you get to create_open().
> Or let the VFS redo the lookup (as if d_revalidate() returned 0).
Which may return yet another result for the dentry and another race.
There is no guarantee that you will ever make progress if someone is
doing something like.
while true
do
echo "1" > foo
echo "2" > foo
done
on the server.
Cheers,
Trond
next prev parent reply other threads:[~2005-10-07 15:14 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-06 14:38 Miklos Szeredi
2005-10-06 16:41 ` Trond Myklebust
2005-10-06 17:02 ` Miklos Szeredi
2005-10-06 17:06 ` Miklos Szeredi
2005-10-06 17:25 ` Trond Myklebust
2005-10-06 17:30 ` Miklos Szeredi
2005-10-06 17:42 ` Trond Myklebust
2005-10-06 17:51 ` Miklos Szeredi
2005-10-06 18:00 ` Jamie Lokier
2005-10-06 18:48 ` Daniel Jacobowitz
2005-10-06 18:38 ` Trond Myklebust
2005-10-06 18:49 ` Miklos Szeredi
2005-10-06 19:17 ` Trond Myklebust
2005-10-06 20:17 ` Miklos Szeredi
2005-10-06 21:12 ` Trond Myklebust
2005-10-07 6:01 ` Miklos Szeredi
2005-10-07 13:38 ` Trond Myklebust
2005-10-07 13:59 ` Miklos Szeredi
2005-10-07 14:47 ` Trond Myklebust
2005-10-07 15:18 ` Miklos Szeredi
2005-10-07 16:01 ` Trond Myklebust
2005-10-07 17:20 ` Miklos Szeredi
2005-10-07 15:13 ` Trond Myklebust [this message]
2005-10-07 15:28 ` Miklos Szeredi
2005-10-07 16:23 ` Trond Myklebust
2005-10-07 17:27 ` Miklos Szeredi
2005-10-07 17:36 ` Trond Myklebust
[not found] ` <1129061494.11164.38.camel@lade.trondhjem.org>
[not found] ` <E1EPeM4-0000Xz-00@dorka.pomaz.szeredi.hu>
2005-10-12 13:20 ` Trond Myklebust
2005-10-12 13:52 ` Miklos Szeredi
2005-10-12 19:01 ` Trond Myklebust
2005-10-12 19:53 ` Miklos Szeredi
2005-10-12 15:20 ` Miklos Szeredi
2005-10-06 17:07 ` Trond Myklebust
2005-10-06 17:23 ` Miklos Szeredi
2005-10-06 17:36 ` Trond Myklebust
2005-10-06 17:47 ` Miklos Szeredi
2005-10-06 17:59 ` Jamie Lokier
2005-10-06 18:13 ` Miklos Szeredi
2005-10-06 18:42 ` Trond Myklebust
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=1128698035.8583.36.camel@lade.trondhjem.org \
--to=trond.myklebust@fys.uio.no \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=miklos@szeredi.hu \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®