From: Phillip Susi <psusi@cfl.rr.com>
To: Andrew Morton <akpm@osdl.org>
Cc: stern@rowland.harvard.edu, pavel@suse.cz, torvalds@osdl.org,
mrmacman_g4@mac.com, alon.barlev@gmail.com,
linux-kernel@vger.kernel.org, linux-pm@lists.osdl.org
Subject: Re: Flames over -- Re: Which is simpler?
Date: Sun, 19 Feb 2006 11:39:49 -0500 [thread overview]
Message-ID: <43F89F55.5070808@cfl.rr.com> (raw)
In-Reply-To: <20060218223221.6df891d3.akpm@osdl.org>
Andrew Morton wrote:
>>
>> Hrm... interesting but sounds like that could be sticky. For instance,
>> what if the user script that does the verifying happens to be ON the
>> volume to be verified?
>
> Well that would be a bug. Solutions would be a) don't put the scripts on a
> removable/power-downable device or b) use tmpfs.
>
I don't see how it could be a bug, just think of the root on usb case.
Keeping the program locked in ram would sidestep that issue, but tmpfs
is pagable right? Swap on usb?
Also, this user space program isn't going to be able to keep fully up to
date on what the disk looks like. Imagine a filesystem that keeps a
generation counter in the super block and increments it every time it
writes to the disk. The user space daemon might read that, then the fs
changes it, you suspend, and when you wake up, the daemon thinks the
media changed because it wasn't fully up to date.
next prev parent reply other threads:[~2006-02-19 16:40 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-12 16:57 Flames over -- Re: Which is simpler? Alan Stern
2006-02-13 0:51 ` Phillip Susi
2006-02-13 2:19 ` Alan Stern
2006-02-13 3:52 ` Phillip Susi
2006-02-13 5:43 ` Kyle Moffett
2006-02-13 16:40 ` Phillip Susi
2006-02-13 16:31 ` Alan Stern
2006-02-13 17:14 ` Phillip Susi
2006-02-13 20:04 ` Alan Stern
2006-02-13 20:38 ` Phillip Susi
2006-02-13 21:24 ` Alan Stern
2006-02-13 22:27 ` Rafael J. Wysocki
2006-02-14 19:26 ` Alan Stern
2006-02-14 20:41 ` Rafael J. Wysocki
2006-02-14 21:08 ` Lee Revell
2006-02-15 15:56 ` Alan Stern
2006-02-13 22:51 ` J. Bruce Fields
2006-02-13 23:47 ` Phillip Susi
2006-02-14 0:50 ` Kyle Moffett
2006-02-14 2:09 ` Phillip Susi
2006-02-14 4:09 ` Kyle Moffett
2006-02-14 4:28 ` Alan Stern
2006-02-14 5:11 ` Kyle Moffett
2006-02-14 15:33 ` Alan Stern
2006-02-14 6:27 ` Phillip Susi
2006-02-14 16:23 ` Kyle Moffett
2006-02-14 18:39 ` Phillip Susi
2006-02-14 19:55 ` Kyle Moffett
2006-02-14 21:13 ` Phillip Susi
2006-02-14 23:32 ` Kyle Moffett
2006-02-15 3:08 ` Phillip Susi
2006-02-14 19:14 ` Olivier Galibert
2006-02-14 19:37 ` Phillip Susi
2006-02-17 21:04 ` Pavel Machek
2006-02-18 16:34 ` Phillip Susi
2006-02-18 17:29 ` Pavel Machek
2006-02-19 5:52 ` Phillip Susi
2006-02-19 9:02 ` Pavel Machek
2006-02-19 16:35 ` Phillip Susi
2006-02-19 16:41 ` Alan Stern
2006-02-19 19:17 ` Phillip Susi
2006-02-19 19:43 ` Pavel Machek
2006-02-20 0:56 ` Olivier Galibert
2006-02-20 1:01 ` Pavel Machek
2006-02-20 1:26 ` Olivier Galibert
2006-02-20 4:04 ` Alan Stern
2006-02-19 20:16 ` Bernd Eckenfels
2006-02-18 21:04 ` Alan Stern
2006-02-19 0:02 ` Andrew Morton
2006-02-19 6:02 ` Phillip Susi
2006-02-19 6:32 ` Andrew Morton
2006-02-19 16:39 ` Phillip Susi [this message]
2006-02-19 16:54 ` Alan Stern
2006-02-19 20:02 ` Andrew Morton
2006-02-19 20:44 ` Oliver Neukum
2006-02-19 21:02 ` Andrew Morton
2006-02-20 6:55 ` Oliver Neukum
2006-02-20 7:29 ` Andrew Morton
2006-02-20 7:57 ` Andrew Morton
2006-02-14 14:15 ` hackmiester / Hunter Fuller
2006-02-15 23:51 ` Pavel Machek
2006-02-13 2:25 ` Kyle Moffett
-- strict thread matches above, loose matches on Subject: below --
2006-02-13 19:16 David Brownell
2006-02-13 20:08 ` Phillip Susi
2006-02-14 3:10 ` David Brownell
2006-02-14 6:05 ` Phillip Susi
2006-02-14 17:04 ` David Brownell
2006-02-15 23:43 ` Pavel Machek
2006-02-18 20:51 ` David Brownell
2006-02-19 6:06 ` Phillip Susi
2006-02-20 5:50 ` David Brownell
2006-02-20 16:07 ` Phillip Susi
2006-02-20 16:51 ` Olivier Galibert
2006-02-20 18:20 ` Phillip Susi
2006-02-20 18:44 ` Olivier Galibert
2006-02-20 21:45 ` Phillip Susi
2006-02-21 16:19 ` David Brownell
2006-02-21 18:30 ` Phillip Susi
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