From: Jamie Lokier <jamie@shareable.org>
To: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: Jeff Mahoney <jeffm@suse.com>,
Anton Altaparmakov <aia21@cam.ac.uk>,
Glauber de Oliveira Costa <glommer@br.ibm.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
ext2-devel@lists.sourceforge.net, hirofumi@mail.parknet.co.jp,
linux-ntfs-dev@lists.sourceforge.net, aia21@cantab.net,
hch@infradead.org, viro@zeniv.linux.org.uk, akpm@osdl.org
Subject: Re: [PATCH] Use of getblk differs between locations
Date: Thu, 13 Oct 2005 01:09:21 +0100 [thread overview]
Message-ID: <20051013000921.GD23770@mail.shareable.org> (raw)
In-Reply-To: <Pine.LNX.4.62.0510122208210.11573@artax.karlin.mff.cuni.cz>
Mikulas Patocka wrote:
> But discarding data sometimes on USB unplug is even worse than discarding
> data always --- users will by experimenting learn that linux doesn't
> discard write-cached data and reminds them to replug the device --- and
> one day, randomly, they lose their data because of some memory management
> condition...
It should not happen provided the total amount of dirty data for
detachable devices is restricted to allow enough room for opening a
dialog.
That's no different, in principle, than the restrictions that are used
to ensure some types of kernel memory allocation always succeed.
There's no exact calculation, just a notion of "this many megabytes
should be enough for a dialog".
-- Jamie
next prev parent reply other threads:[~2005-10-13 0:09 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-10 20:45 [PATCH] Use of getblk differs between locations Glauber de Oliveira Costa
2005-10-10 21:20 ` Anton Altaparmakov
2005-10-10 21:46 ` Glauber de Oliveira Costa
2005-10-10 21:58 ` Mikulas Patocka
2005-10-10 22:25 ` Anton Altaparmakov
2005-10-10 22:49 ` Mikulas Patocka
2005-10-10 23:12 ` Glauber de Oliveira Costa
2005-10-10 23:16 ` Mikulas Patocka
2005-10-10 23:33 ` Glauber de Oliveira Costa
2005-10-10 23:34 ` Mikulas Patocka
2005-10-10 23:49 ` Glauber de Oliveira Costa
2005-10-11 7:52 ` Anton Altaparmakov
2005-10-12 19:51 ` Jeff Mahoney
2005-10-12 19:59 ` Mikulas Patocka
2005-10-12 20:07 ` Jeff Mahoney
2005-10-12 20:12 ` Mikulas Patocka
2005-10-12 20:14 ` Anton Altaparmakov
2005-10-12 20:31 ` Mikulas Patocka
2005-10-12 21:19 ` Jeff Mahoney
2005-10-12 21:35 ` Anton Altaparmakov
2005-10-13 0:09 ` Jamie Lokier [this message]
2005-10-13 0:21 ` Mikulas Patocka
2005-10-13 0:27 ` Jamie Lokier
2005-10-13 11:17 ` Pavel Machek
2005-10-14 16:52 ` Jamie Lokier
2005-10-14 18:26 ` Mikulas Patocka
2005-10-13 0:05 ` Jamie Lokier
2005-10-12 20:08 ` Anton Altaparmakov
2005-10-10 22:36 ` Glauber de Oliveira Costa
2005-10-10 22:28 ` Anton Altaparmakov
2005-10-10 23:36 ` Andrew Morton
2005-10-11 0:07 ` Glauber de Oliveira Costa
2005-10-11 0:05 ` Al Viro
2005-10-11 0:40 ` Glauber de Oliveira Costa
2005-10-11 12:35 ` Jan Hudec
2005-10-11 0:09 ` Mikulas Patocka
2005-10-11 1:07 ` Andrew Morton
2005-10-11 1:20 ` Mikulas Patocka
2005-10-11 5:02 ` Andrew Morton
2005-10-11 8:07 ` Anton Altaparmakov
2005-10-11 8:01 ` Anton Altaparmakov
2005-10-13 0:58 ` Mike Christie
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