From: "Hua Zhong" <hzhong@cisco.com>
To: "'Timothy Miller'" <miller@techsource.com>,
"'Andreas Dilger'" <adilger@clusterfs.com>
Cc: "'Justin Cormack'" <justin@street-vision.com>,
"'Jesse Pollard'" <jesse@cats-chateau.net>,
"'linux-kernel mailing list'" <linux-kernel@vger.kernel.org>
Subject: RE: OT: why no file copy() libc/syscall ??
Date: Thu, 20 Nov 2003 13:58:59 -0800 [thread overview]
Message-ID: <00dd01c3afb1$8172ea50$d43147ab@amer.cisco.com> (raw)
In-Reply-To: <3FBD328C.1070607@techsource.com>
> Andreas Dilger wrote:
> > On Nov 20, 2003 15:44 -0500, Timothy Miller wrote:
> >
> >>This could be a problem if COW causes you to run out of space when
> >>writing to the file.
> >
> >
> > Not much different than running out of space copying a file.
>
> It is, though. If you run out of space copying a file, you
> know it when you're copying. Applications don't usually expect to get
> out-of-space errors while overwriting something in the middle of a
file.
It could for journaling filesystem already.
It's not in any spec that writing to the middle of a file would not
cause ENOSPC, is it?
> In effect, your free space and your used space add up to greater than
> the capacity of the disk. An application that checks for free space
> before doing something would be fooled into thinking there is
> more free space than there really is. How can an application find out
> in advance that a file that it's about to modify (without appending
> anything to the end) is going to need more disk space?
next prev parent reply other threads:[~2003-11-20 21:59 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-11 1:05 OT: why no file copy() libc/syscall ?? Albert Cahalan
2003-11-11 3:50 ` Andreas Dilger
2003-11-11 4:03 ` Daniel Gryniewicz
2003-11-11 4:14 ` Valdis.Kletnieks
2003-11-11 6:00 ` Andreas Dilger
2003-11-11 8:58 ` Florian Weimer
2003-11-11 10:27 ` jw schultz
2003-11-11 20:08 ` Jan Harkes
2003-11-12 15:36 ` Jesse Pollard
2003-11-20 17:21 ` Florian Weimer
2003-11-20 19:08 ` Jesse Pollard
2003-11-20 19:12 ` Florian Weimer
2003-11-20 19:44 ` Justin Cormack
2003-11-20 20:44 ` Timothy Miller
2003-11-20 21:07 ` Andreas Dilger
2003-11-20 21:30 ` Timothy Miller
2003-11-20 21:49 ` Maciej Zenczykowski
2003-11-20 21:52 ` Timothy Miller
2003-11-20 21:58 ` Hua Zhong [this message]
2003-11-22 14:50 ` Pavel Machek
2003-11-22 19:50 ` Jamie Lokier
2003-11-22 23:07 ` Andreas Schwab
2003-11-21 16:24 ` Jesse Pollard
2003-11-20 21:48 ` Maciej Zenczykowski
2003-11-21 16:34 ` Jesse Pollard
2003-11-20 22:31 ` Xavier Bestel
2003-11-20 22:44 ` Andreas Dilger
2003-11-27 2:40 ` Robert White
2003-11-27 7:29 ` Nick Piggin
2003-11-27 9:15 ` David Lang
2003-11-27 8:56 ` Nick Piggin
2003-11-27 9:50 ` David Lang
2003-11-27 10:02 ` Jörn Engel
2003-11-27 10:58 ` David Lang
2003-12-01 16:20 ` Jesse Pollard
2003-11-11 8:52 ` Gábor Lénárt
2003-11-11 13:38 ` Rogier Wolff
2003-11-11 13:53 ` Jakub Jelinek
2003-11-11 13:58 ` David Woodhouse
2003-11-13 20:22 ` H. Peter Anvin
2003-11-13 23:39 ` Andrea Arcangeli
2003-11-14 0:04 ` jw schultz
2003-11-14 0:36 ` H. Peter Anvin
2003-11-14 1:10 ` Andrea Arcangeli
2003-11-14 1:15 ` H. Peter Anvin
2003-11-11 14:11 ` Albert Cahalan
2003-11-12 15:19 ` Jesse Pollard
2003-11-14 3:42 ` Albert Cahalan
[not found] <1068512710.722.161.camel@cube.suse.lists.linux.kernel>
[not found] ` <20031111133859.GA11115@bitwizard.nl.suse.lists.linux.kernel>
[not found] ` <20031111085323.M8854@devserv.devel.redhat.com.suse.lists.linux.kernel>
[not found] ` <bp0p5m$lke$1@cesium.transmeta.com.suse.lists.linux.kernel>
[not found] ` <20031113233915.GO1649@x30.random.suse.lists.linux.kernel>
[not found] ` <3FB4238A.40605@zytor.com.suse.lists.linux.kernel>
[not found] ` <20031114011009.GP1649@x30.random.suse.lists.linux.kernel>
[not found] ` <3FB42CC4.9030009@zytor.com.suse.lists.linux.kernel>
2003-11-14 15:26 ` Andi Kleen
2003-11-18 15:49 ` Jamie Lokier
2003-11-18 16:05 ` Andi Kleen
2003-11-18 16:25 ` Trond Myklebust
2003-11-19 13:30 ` Jesse Pollard
2003-11-18 16:58 ` H. Peter Anvin
2003-11-19 2:12 ` Linus Torvalds
2003-11-19 4:04 ` Chris Adams
[not found] <Qvw7.5Qf.9@gated-at.bofh.it>
[not found] ` <QxRl.17Y.9@gated-at.bofh.it>
[not found] ` <Qy0W.1sk.9@gated-at.bofh.it>
[not found] ` <QyaB.1GK.17@gated-at.bofh.it>
[not found] ` <QzSZ.4x1.1@gated-at.bofh.it>
[not found] ` <QCHh.X6.3@gated-at.bofh.it>
2003-11-11 9:51 ` Ihar 'Philips' Filipau
2003-11-11 10:41 ` jw schultz
[not found] ` <QH4e.eV.3@gated-at.bofh.it>
2003-11-11 14:11 ` Ihar 'Philips' Filipau
2003-11-11 15:02 ` Rogier Wolff
2003-11-11 15:31 ` Ihar 'Philips' Filipau
2003-11-11 20:22 ` Jan Harkes
2003-11-11 20:31 ` Valdis.Kletnieks
[not found] <QDtX.2dq.15@gated-at.bofh.it>
[not found] ` <QDtX.2dq.17@gated-at.bofh.it>
[not found] ` <QDtX.2dq.19@gated-at.bofh.it>
[not found] ` <QDtX.2dq.21@gated-at.bofh.it>
[not found] ` <QDtX.2dq.23@gated-at.bofh.it>
[not found] ` <QDtY.2dq.25@gated-at.bofh.it>
[not found] ` <QDtX.2dq.13@gated-at.bofh.it>
[not found] ` <QEg2.3zi.9@gated-at.bofh.it>
2003-11-11 12:43 ` Ihar 'Philips' Filipau
-- strict thread matches above, loose matches on Subject: below --
2003-11-10 12:09 Bradley Chapman
2003-11-10 18:47 ` Tomas Konir
2003-11-10 22:44 ` Derek Foreman
[not found] <QiyV.1k3.15@gated-at.bofh.it>
2003-11-10 12:08 ` Ihar 'Philips' Filipau
2003-11-10 13:29 ` Jesse Pollard
2003-11-10 14:22 ` Daniel Jacobowitz
2003-11-11 20:57 ` Jakob Oestergaard
2003-11-10 15:19 ` David Woodhouse
2003-11-10 16:15 ` Jesse Pollard
2003-11-11 12:00 ` davide.rossetti
2003-11-11 12:08 ` Andreas Schwab
2003-11-11 12:23 ` davide.rossetti
2003-11-10 11:33 Davide Rossetti
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='00dd01c3afb1$8172ea50$d43147ab@amer.cisco.com' \
--to=hzhong@cisco.com \
--cc=adilger@clusterfs.com \
--cc=jesse@cats-chateau.net \
--cc=justin@street-vision.com \
--cc=linux-kernel@vger.kernel.org \
--cc=miller@techsource.com \
/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.