From: viro@parcelfarce.linux.theplanet.co.uk
To: Linus Torvalds <torvalds@osdl.org>
Cc: Jamie Lokier <jamie@shareable.org>,
David Woodhouse <dwmw2@infradead.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Andrew Morton <akpm@osdl.org>, Carsten Otte <cotte@de.ibm.com>,
Carsten Otte <cotte@freenet.de>,
linux-fsdevel@vger.kernel.org, sct@redhat.com,
Dave Kleikamp <shaggy@austin.ibm.com>
Subject: Re: [PATCH] ext3 [linux-2.6.2.]: accessing already freed inodes when under memory pressure
Date: Fri, 2 Apr 2004 20:37:15 +0100 [thread overview]
Message-ID: <20040402193714.GF31500@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <Pine.LNX.4.58.0404021127200.1122@ppc970.osdl.org>
On Fri, Apr 02, 2004 at 11:32:26AM -0800, Linus Torvalds wrote:
>
>
> On Fri, 2 Apr 2004, Jamie Lokier wrote:
> >
> > I think the useful thing to do is return a different st_dev value for
> > each bind mount.
>
> Naah. You _want_ user space to see that they are the same file, and then
> the algorithm should be: "open+open+fstat+fstat+cmp st_dev/st_ino".
>
> But I agree that it might be good to also have a way to enquire about
> mount information. One logical place for that might be "fstatfs()".
> We've got a few spare bytes there, so it wouldn't be impossible to do.
I'm not sure what we want to expose there, though. Address of vfsmount
would certainly be unique, but... Generation number would be safer,
but we will need to be careful about uniqueness of that animal. How much
free space do we have there?
next prev parent reply other threads:[~2004-04-02 19:37 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-30 11:57 [PATCH] ext3 [linux-2.6.2.]: accessing already freed inodes when under memory pressure Martin Schwidefsky
2004-03-30 13:39 ` David Woodhouse
2004-03-30 14:16 ` Matthew Wilcox
2004-03-30 15:51 ` Linus Torvalds
2004-04-02 16:12 ` viro
2004-04-02 18:01 ` viro
2004-04-02 18:52 ` Linus Torvalds
2004-04-02 19:02 ` Linus Torvalds
2004-04-02 19:10 ` viro
2004-04-02 19:07 ` viro
2004-04-02 20:23 ` viro
2004-04-02 22:40 ` Trond Myklebust
2004-04-02 23:06 ` viro
2004-04-02 23:23 ` Trond Myklebust
2004-04-03 0:53 ` Neil Brown
2004-04-02 23:19 ` Trond Myklebust
2004-04-02 19:17 ` Jamie Lokier
2004-04-02 19:25 ` viro
2004-04-02 19:32 ` Linus Torvalds
2004-04-02 19:37 ` viro [this message]
2004-04-02 19:45 ` Linus Torvalds
2004-04-02 20:08 ` viro
2004-04-02 20:40 ` Jamie Lokier
2004-04-02 20:59 ` Christoph Hellwig
2004-04-02 21:09 ` viro
2004-04-02 23:42 ` Jamie Lokier
2004-04-02 21:08 ` viro
2004-04-03 0:39 ` Jamie Lokier
2004-04-05 14:07 ` Stephen C. Tweedie
2004-03-30 15:07 ` Linus Torvalds
2004-04-02 16:14 ` viro
-- strict thread matches above, loose matches on Subject: below --
2004-03-30 15:13 Martin Schwidefsky
2004-03-29 19:07 Martin Schwidefsky
2004-03-29 20:11 ` Linus Torvalds
2004-03-29 20:29 ` Dave Kleikamp
2004-02-19 18:00 Martin Schwidefsky
2004-02-19 12:21 Carsten Otte
2004-02-19 16:53 ` Linus Torvalds
2004-02-19 17:39 ` Stephen C. Tweedie
2004-02-19 18:49 ` Andrew Morton
2004-02-19 20:28 ` Carsten Otte
2004-02-19 20:26 ` viro
2004-02-19 20:35 ` Carsten Otte
2004-02-19 20:14 ` Carsten Otte
2004-02-20 3:41 ` Andrew Morton
2004-02-19 20:19 ` Carsten Otte
[not found] ` <20040220164325.659c4e45.akpm@osdl.org>
[not found] ` <200402241338.57855.cotte@freenet.de>
2004-02-24 22:55 ` Andrew Morton
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