From: viro@parcelfarce.linux.theplanet.co.uk
To: Paul.Clements@steeleye.com
Cc: Lou Langholtz <ldl@aros.net>,
linux-kernel@vger.kernel.org, Andrew Morton <akpm@digeo.com>,
Pavel Machek <pavel@ucw.cz>
Subject: Re: [RFC][PATCH] nbd driver for 2.5+: fix locking issues with ioctl UI
Date: Wed, 25 Jun 2003 18:56:49 +0100 [thread overview]
Message-ID: <20030625175649.GA27348@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <Pine.LNX.4.10.10306251251410.11076-100000@clements.sc.steeleye.com>
On Wed, Jun 25, 2003 at 01:48:16PM -0400, Paul Clements wrote:
> This patch introduces a locking hierarchy between the lo->tx_lock and
> lo->queue_lock. The existing driver does not have this limitation.
> I would feel a lot better about this patch if you were to recode it
> to avoid this.
?????
One of them is a semaphore, another - a spinlock. Of course there always
had been a hierarchy - you can't call down() under a spinlock, the damn
thing can schedule.
next prev parent reply other threads:[~2003-06-25 17:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-25 6:51 Lou Langholtz
2003-06-25 7:19 ` Andrew Morton
2003-06-25 14:24 ` Lou Langholtz
2003-06-25 15:36 ` Lou Langholtz
2003-06-25 15:55 ` Christoph Hellwig
2003-06-25 17:38 ` Lou Langholtz
2003-06-25 17:44 ` Christoph Hellwig
2003-06-25 18:16 ` Lou Langholtz
2003-06-25 18:19 ` Christoph Hellwig
2003-06-25 17:58 ` Anyone for NBD maintainer [was Re: [RFC][PATCH] nbd driver for 2.5+: fix locking issues with ioctl UI] Pavel Machek
2003-06-25 18:21 ` Lou Langholtz
2003-06-25 18:30 ` Pavel Machek
2003-06-25 21:35 ` Lou Langholtz
[not found] ` <Pine.LNX.4.10.10306251645580.11076-100000@clements.sc.steeleye.com>
2003-06-25 21:09 ` NBD maintainer change [was Re: Anyone for NBD maintainer] Pavel Machek
2003-06-25 17:48 ` [RFC][PATCH] nbd driver for 2.5+: fix locking issues with ioctl UI Paul Clements
2003-06-25 17:56 ` viro [this message]
2003-06-25 18:57 ` Lou Langholtz
2003-06-25 19:41 ` Lou Langholtz
2003-06-25 20:00 ` Paul Clements
2003-06-25 22:17 ` Lou Langholtz
2003-06-28 17:13 ` Paul Clements
2003-06-30 16:10 ` Lou Langholtz
2003-06-28 17:20 ` [PATCH] nbd: maintain compatibility with existing nbd tools Paul Clements
2003-06-29 18:42 ` Pavel Machek
2003-06-29 21:04 ` [PATCH 2.5.73] " Paul Clements
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