From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: ego@in.ibm.com
Cc: linux-kernel@vger.kernel.org,
Zdenek Kabelac <zdenek.kabelac@gmail.com>,
Oleg Nesterov <oleg@tv-sign.ru>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
Srivatsa Vaddagiri <vatsa@in.ibm.com>,
Eric Dumazet <dada1@cosmosbay.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH 3/8] lockdep: fix fib_hash softirq inversion
Date: Tue, 29 Apr 2008 16:45:29 +0200 [thread overview]
Message-ID: <1209480329.13978.67.camel@twins> (raw)
In-Reply-To: <20080429130006.GD23562@in.ibm.com>
On Tue, 2008-04-29 at 18:30 +0530, Gautham R Shenoy wrote:
> Subject: lockdep: fix fib_hash softirq inversion
>
> From: Peter Zijlstra <a.p.zijlstra@chello.nl>
This is a false positive, and hence we should not apply this patch.
I think I understand the problem and have an idea on how to fix lockdep,
but I haven't gotten around to actually doing so.
Esp in the light that fixing lockdep isn't a requirement (just a nice to
have) for these other cpu hotplug patches we should drop these patches.
So that is, 1-4 should not be applied to mainline. I'll work on a new
and improved 2 that'll make 3 and 4 unneeded.
next prev parent reply other threads:[~2008-04-29 14:46 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-29 12:56 [PATCH 0/8] CPU-Hotplug: Fix CPU-Hotplug <--> cpufreq locking dependency Gautham R Shenoy
2008-04-29 12:57 ` [PATCH 1/8] lockdep: fix recursive read lock validation Gautham R Shenoy
2008-04-29 13:16 ` Bart Van Assche
2008-04-29 14:57 ` Peter Zijlstra
2008-04-29 15:03 ` Bart Van Assche
2008-04-29 15:15 ` Peter Zijlstra
2008-04-29 16:03 ` Bart Van Assche
2008-04-29 16:15 ` Peter Zijlstra
2008-04-29 16:29 ` Bart Van Assche
2008-04-29 17:04 ` Peter Zijlstra
2008-04-29 17:45 ` Bart Van Assche
2008-04-29 17:58 ` Peter Zijlstra
2008-04-29 12:58 ` [PATCH 2/8] lockdep: reader-in-writer recursion Gautham R Shenoy
2008-04-29 13:00 ` [PATCH 3/8] lockdep: fix fib_hash softirq inversion Gautham R Shenoy
2008-04-29 14:45 ` Peter Zijlstra [this message]
2008-04-29 13:01 ` [PATCH 4/8] net: af_netlink: deadlock Gautham R Shenoy
2008-04-29 13:19 ` Hans Reiser, reiserfs developer linux-os (Dick Johnson)
2008-04-29 13:02 ` [PATCH 5/8] cpu: cpu-hotplug deadlock Gautham R Shenoy
2008-04-29 14:33 ` Oleg Nesterov
2008-04-29 15:09 ` Peter Zijlstra
2008-04-29 16:45 ` Oleg Nesterov
2008-04-29 17:31 ` Peter Zijlstra
2008-04-30 5:37 ` Gautham R Shenoy
2008-04-30 11:43 ` Oleg Nesterov
2008-04-29 13:02 ` [PATCH 6/8] lockdep: annotate cpu_hotplug Gautham R Shenoy
2008-04-29 13:03 ` [PATCH 7/8] cpu_hotplug: Introduce try_get_online_cpus() Gautham R Shenoy
2008-04-29 13:05 ` [PATCH 8/8] cpufreq: Nest down_write/read(cpufreq_rwsem) within get_online_cpus()/put_online_cpus() Gautham R Shenoy
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