From: Robert Love <rml@tech9.net>
To: bidulock@openss7.org
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Andi Kleen <ak@suse.de>,
Pete Zaitcev <zaitcev@redhat.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: export of sys_call_table
Date: 04 Oct 2002 15:43:54 -0400 [thread overview]
Message-ID: <1033760635.742.99.camel@phantasy> (raw)
In-Reply-To: <20021004131547.B2369@openss7.org>
On Fri, 2002-10-04 at 15:15, Brian F. G. Bidulock wrote:
> Attached is an untested patch for LiS. AK doesn't like the
> read/write_lock. AFAIK it will work for LiS but might not work
> for AFS.
It is not so much that he does not like it but you _cannot_ sleep while
holding a spinlock. It is not just his style but common sense.
grab lock -> sleep -> new task grabs same lock -> deadlock
You need to use a semaphore here or find some other way to provide
protection without becoming atomic.
Robert Love
next prev parent reply other threads:[~2002-10-04 19:38 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20021003153943.E22418@openss7.org.suse.lists.linux.kernel>
[not found] ` <1033682560.28850.32.camel@irongate.swansea.linux.org.uk.suse.lists.linux.kernel>
[not found] ` <20021003170608.A30759@openss7.org.suse.lists.linux.kernel>
[not found] ` <1033722612.1853.1.camel@localhost.localdomain.suse.lists.linux.kernel>
[not found] ` <20021004051932.A13743@openss7.org.suse.lists.linux.kernel>
2002-10-04 13:01 ` export of sys_call_table Andi Kleen
2002-10-04 13:11 ` Brian F. G. Bidulock
2002-10-04 13:15 ` Andi Kleen
2002-10-04 13:22 ` Brian F. G. Bidulock
2002-10-04 14:11 ` Andi Kleen
2002-10-04 14:31 ` Brian F. G. Bidulock
[not found] ` <20021003221525.GA2221@kroah.com.suse.lists.linux.kernel>
[not found] ` <20021003222716.GB14919@suse.de.suse.lists.linux.kernel>
[not found] ` <1033684027.1247.43.camel@phantasy.suse.lists.linux.kernel>
[not found] ` <20021003233504.GA20570@suse.de.suse.lists.linux.kernel>
[not found] ` <20021003235022.GA82187@compsoc.man.ac.uk.suse.lists.linux.kernel>
[not found] ` <mailman.1033691043.6446.linux-kernel2news@redhat.com.suse.lists.linux.kernel>
[not found] ` <200210040403.g9443Vu03329@devserv.devel.redhat.com.suse.lists.linux.kernel>
[not found] ` <20021003233221.C31444@openss7.org.suse.lists.linux.kernel>
[not found] ` <20021004133657.B17216@devserv.devel.redhat.com.suse.lists.linux.kernel>
2002-10-04 18:14 ` Andi Kleen
2002-10-04 18:46 ` Alan Cox
2002-10-04 18:45 ` Alexander Viro
2002-10-04 19:15 ` Brian F. G. Bidulock
2002-10-04 19:26 ` Andi Kleen
2002-10-04 19:37 ` Pete Zaitcev
2002-10-04 20:17 ` (off-list) Mail headers (was: Re: export of sys_call_table) Sean Neakums
2002-10-04 20:33 ` Sean Neakums
2002-10-04 19:43 ` Robert Love [this message]
2002-10-04 22:21 ` export of sys_call_table David S. Miller
2002-10-04 22:41 ` Brian F. G. Bidulock
2002-10-04 22:38 ` David S. Miller
2002-10-08 22:20 ` [PATCH] " Brian F. G. Bidulock
2002-10-08 22:27 ` Brian F. G. Bidulock
2002-10-08 23:39 ` David S. Miller
2002-10-08 23:18 ` David S. Miller
2002-10-09 0:21 ` Brian F. G. Bidulock
2002-10-09 0:00 ` Robert Love
[not found] ` <mailman.1034119380.19047.linux-kernel2news@redhat.com>
2002-10-09 0:30 ` Pete Zaitcev
2002-10-09 0:40 ` Brian F. G. Bidulock
2002-10-04 21:54 Mark Veltzer
-- strict thread matches above, loose matches on Subject: below --
2002-10-03 21:39 Brian F. G. Bidulock
2002-10-03 22:02 ` Alan Cox
2002-10-03 23:06 ` Brian F. G. Bidulock
2002-10-04 9:10 ` Arjan van de Ven
2002-10-04 11:19 ` Brian F. G. Bidulock
2002-10-04 11:31 ` Arjan van de Ven
2002-10-04 11:55 ` Brian F. G. Bidulock
2002-10-04 13:00 ` Alan Cox
2002-10-03 23:10 ` Michal Jaegermann
2002-10-04 0:32 ` Andy Pfiffer
2002-10-04 9:20 ` Arjan van de Ven
2002-10-06 14:17 ` Kasper Dupont
2003-01-03 8:28 ` Eric W. Biederman
2002-10-04 21:06 ` David S. Miller
2002-10-04 21:44 ` Brian F. G. Bidulock
2002-10-12 5:43 ` Eric Blade
2002-10-03 22:14 ` Robert Love
2002-10-03 22:23 ` Robert Love
2002-10-03 22:24 ` Patrick Mochel
2002-10-03 22:15 ` Greg KH
2002-10-03 22:27 ` Dave Jones
2002-10-03 22:27 ` Robert Love
2002-10-03 22:58 ` John Levon
2002-10-03 23:10 ` Alexander Viro
2002-10-03 23:14 ` John Levon
2002-10-04 4:05 ` Muli Ben-Yehuda
2002-10-04 4:46 ` Greg KH
2002-10-04 4:53 ` Muli Ben-Yehuda
2002-10-03 23:35 ` Dave Jones
2002-10-03 23:50 ` John Levon
2002-10-04 0:17 ` Brian F. G. Bidulock
[not found] ` <mailman.1033691043.6446.linux-kernel2news@redhat.com>
2002-10-04 4:03 ` Pete Zaitcev
2002-10-04 5:32 ` Brian F. G. Bidulock
2002-10-04 11:42 ` John Levon
2002-10-04 12:03 ` Brian F. G. Bidulock
2002-10-04 13:02 ` Alan Cox
2002-10-04 17:36 ` Pete Zaitcev
2002-10-05 1:39 ` John Levon
2002-10-04 13:58 ` Christoph Hellwig
2002-10-04 15:15 ` Brian F. G. Bidulock
2002-10-04 15:28 ` Christoph Hellwig
2002-10-04 16:19 ` Brian F. G. Bidulock
2002-10-04 16:25 ` Christoph Hellwig
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